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Sample records for atmospheric release advisory

  1. Atmospheric release advisory capability

    International Nuclear Information System (INIS)

    The ARAC system (Atmospheric Release Advisory Capability) is described. The system is a collection of people, computers, computer models, topographic data and meteorological input data that together permits a calculation of, in a quasi-predictive sense, where effluent from an accident will migrate through the atmosphere, where it will be deposited on the ground, and what instantaneous and integrated dose an exposed individual would receive

  2. Atmospheric Release Advisory Capability

    International Nuclear Information System (INIS)

    The Atmospheric Release Advisory Capability (ARAC) project is a Department of Energy (DOE) sponsored real-time emergency response service available for use by both federal and state agencies in case of a potential or actual atmospheric release of nuclear material. The project, initiated in 1972, is currently evolving from the research and development phase to full operation. Plans are underway to expand the existing capability to continuous operation by 1984 and to establish a National ARAC Center (NARAC) by 1988. This report describes the ARAC system, its utilization during the past two years, and plans for its expansion during the next five to six years. An integral part of this expansion is due to a very important and crucial effort sponsored by the Defense Nuclear Agency to extend the ARAC service to approximately 45 Department of Defense (DOD) sites throughout the continental US over the next three years

  3. Atmospheric Release Advisory Capability (ARAC): update 1977

    International Nuclear Information System (INIS)

    The Atmospheric Release Advisory Capability (ARAC) is a service to facilities requiring a means of realtime prediction of the extent of health hazards that may result from a release of radionuclides or other toxic materials. The ARAC system, sponsored by the Department of Energy (DOE), consists of a network of serviced facilities and a central facility at the University of California, Lawrence Livermore Laboratory (LLL). Since 1973, when the concept was initiated, a joint feasibility study of the ARAC system has been conducted by LLL and the Savannah River Laboratory (SRL) and research and development was initiated to implement this service for DOE nuclear facilities. The present system of three sites (LLL, Savannah River Plant and the Rocky Flats Plant) is now being tested and evaluated with the Mound Laboratory scheduled to join the network in the fall of 1977. Plans are presently being formulated to implement the ARAC service for additional DOE sites during the next several years. This article briefly describes the ARAC concept, discusses progress to date and outlines future plans for completing the system's development and operating the service

  4. National Atmospheric Release Advisory Center (NARAC) Capabilities for Homeland Security

    Energy Technology Data Exchange (ETDEWEB)

    Sugiyama, G; Nasstrom, J; Baskett, R; Simpson, M

    2010-03-08

    The Department of Energy's National Atmospheric Release Advisory Center (NARAC) provides critical information during hazardous airborne releases as part of an integrated national preparedness and response strategy. Located at Lawrence Livermore National Laboratory, NARAC provides 24/7 tools and expert services to map the spread of hazardous material accidentally or intentionally released into the atmosphere. NARAC graphical products show affected areas and populations, potential casualties, and health effect or protective action guideline levels. LLNL experts produce quality-assured analyses based on field data to assist decision makers and responders. NARAC staff and collaborators conduct research and development into new science, tools, capabilities, and technologies in strategically important areas related to airborne transport and fate modeling and emergency response. This paper provides a brief overview of some of NARAC's activities, capabilities, and research and development.

  5. The current status of ARAC (Atmospheric Release Advisory Capability) and its application to the Chernobyl event

    Energy Technology Data Exchange (ETDEWEB)

    Gudiksen, P.H.; Sullivan, T.J.; Harvey, T.F.

    1986-10-01

    The Atmospheric Release Advisory Capability (ARAC) project, developed by the Lawrence Livermore National Laboratory (LLNL), provides real-time dose assessments and estimates of the extent of surface contamination that may result from an atmospheric release of radioactivity. It utilizes advanced computer-based data communication and processing systems to acquire the meteorological and source term information needed by the three-dimensional atmospheric dispersion models to derive the consequence assessments. The ARAC responded to the recent Chernobyl reactor accident in the Soviet Union by estimating the source term and the radiation dose distribution due to exposure to the radioactive cloud over Europe and the Northern Hemisphere. This analysis revealed that approximately 50% of the estimated core inventories of I-131 and Cs-137 were released. The estimated committed effective dose equivalent due to inhalation of radioactivty during cloud passage is of the order of 10 mrem within parts of Scandinavia and eastern Europe, while most of the populations within central Europe were exposed to levels ranging from 1 to 10 mrem. The amount of Cs-137 released by the Chernobyl accident far exceeds that released by previous reactor accidents, but is only about 6% of the Cs-137 produced by the atmospheric weapon testing programs. 9 refs., 4 figs., 2 tabs.

  6. Study of applying the Atmospheric Release Advisory Capability to nuclear power plants. [Use of ARAC to forecast hazards of accidental release of radionuclides to the atmosphere

    Energy Technology Data Exchange (ETDEWEB)

    Orphan, R.C.

    1978-06-01

    Each utility licensee for a nuclear power reactor is required to minimize the adverse effects from an accidental radionuclide release into the atmosphere. In the past the ability to forecast quantitatively the extent of the hazard from such a release has been limited. Now powerful atmospheric modeling techniques are available to assist nuclear reactor site officials with greatly improved assessments. Lawrence Livermore Laboratory (LLL) has developed a prototype system called the Atmospheric Release Advisory Capability (ARAC) which is designed to integrate the modeling with advanced sensors, data handling techniques, and weather data in order to provide timely, usable advisories to the site officials. The purpose of this project is to examine the ways and means of adapting ARAC for application to many nuclear power reactors widely dispersed across the nation. The project will emphasize the management aspects, including government-industry relationships, technology transfer, organizational structure, staffing, implementing procedures, and costs. Benefits and costs for several alternative systems will be compared. The results will be reviewed and evaluated by the management and staff of the ARAC project at LLL and also by selected staff members of the sponsoring government agency.

  7. Overview of the National Atmospheric Release Advisory Center's urban research and development activities

    International Nuclear Information System (INIS)

    This presentation describes the tools and services provided by the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory (LLNL) for modeling the impacts of airborne hazardous materials. NARAC provides atmospheric plume modeling tools and services for chemical, biological, radiological, and nuclear airborne hazards. NARAC can simulate downwind effects from a variety of scenarios, including fires, industrial and transportation accidents, radiation dispersal device explosions, hazardous material spills, sprayers, nuclear power plant accidents, and nuclear detonations. NARAC collaborates on radiological dispersion source terms and effects models with Sandia National Laboratories and the U.S. Nuclear Regulatory Commission. NARAC was designated the interim provider of capabilities for the Department of Homeland Security's Interagency Modeling and Atmospheric Assessment Center by the Homeland Security Council in April 2004. The NARAC suite of software tools include simple stand-alone, local-scale plume modeling tools for end-user's computers, and Web- and Internet-based software to access advanced modeling tools and expert analyses from the national center at LLNL. Initial automated, 3-D predictions of plume exposure limits and protective action guidelines for emergency responders and managers are available from the center in 5-10 minutes. These can be followed immediately by quality-assured, refined analyses by 24 x 7 on-duty or on-call NARAC staff. NARAC continues to refine calculations using updated on-scene information, including measurements, until all airborne releases have stopped and the hazardous threats are mapped and impacts assessed. Model predictions include the 3-D spatial and time-varying effects of weather, land use, and terrain, on scales from the local to regional to global. Real-time meteorological data and forecasts are provided by redundant communications links to the U.S. National Oceanic and Atmospheric

  8. Overview of the National Atmospheric Release Advisory Center's Urban Research and Development Activities

    Science.gov (United States)

    Lundquist, J. K.; Sugiyama, G.; Nasstrom, J.

    2007-12-01

    This presentation describes the tools and services provided by the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory (LLNL) for modeling the impacts of airborne hazardous materials. NARAC provides atmospheric plume modeling tools and services for chemical, biological, radiological, and nuclear airborne hazards. NARAC can simulate downwind effects from a variety of scenarios, including fires, industrial and transportation accidents, radiation dispersal device explosions, hazardous material spills, sprayers, nuclear power plant accidents, and nuclear detonations. NARAC collaborates on radiological dispersion source terms and effects models with Sandia National Laboratories and the U.S. Nuclear Regulatory Commission. NARAC was designated the interim provider of capabilities for the Department of Homeland Security's Interagency Modeling and Atmospheric Assessment Center by the Homeland Security Council in April 2004. The NARAC suite of software tools include simple stand-alone, local-scale plume modeling tools for end-user's computers, and Web- and Internet-based software to access advanced modeling tools and expert analyses from the national center at LLNL. Initial automated, 3-D predictions of plume exposure limits and protective action guidelines for emergency responders and managers are available from the center in 5-10 minutes. These can be followed immediately by quality-assured, refined analyses by 24 x 7 on-duty or on-call NARAC staff. NARAC continues to refine calculations using updated on-scene information, including measurements, until all airborne releases have stopped and the hazardous threats are mapped and impacts assessed. Model predictions include the 3-D spatial and time-varying effects of weather, land use, and terrain, on scales from the local to regional to global. Real-time meteorological data and forecasts are provided by redundant communications links to the U.S. National Oceanic and Atmospheric

  9. The atmospheric release advisory capability (ARAC): A federal emergency response capability

    International Nuclear Information System (INIS)

    The Atmospheric Release Capability (ARAC) is a Department of Energy (DOE)-sponsored emergency-response service set up to provide real-time prediction of the dose levels and the extent of surface contamination resulting from a broad range of possible occurrences (accidents, spills, extortion threats involving nuclear material, reentry of nuclear-powered satellites, and atmospheric nuclear tests) that could involve the release of airborne radioactive material. During the past decade, ARAC has responded to more than 150 real-time situations, including exercises. The most notable responses include the Three Mile Island accident in Pennsylvania, the Titan II missile accident in Arkansas, the reentry of the USSR's COSMOS-954 into the atmosphere over Canada, the accidental release of uranium hexafluoride from the Sequoyah Facility accident in Oklahoma, and, most recently, the Chernobyl reactor accident in the Soviet Union. ARAC currently supports the emergency-preparedness plans at 50 Department of Defense (DOD) and DOE sites within the US and also responds to accidents that happen elsewhere. Our ARAC center serves as the focal point for data acquisition, data analysis and assessments during a response, using a computer-based communication network to acquire real-time weather data from the accident site and the surrounding region, as well as pertinent accident information. Its three-dimensional computer models for atmospheric dispersion, MATHEW and ADPIC, digest all this information and produce the predictions used in accident assessment. 9 refs., 6 figs., 1 tab

  10. Atmospheric release advisory capability pilot project at two nuclear power plants and associated state offices of emergency preparedness. Final report

    International Nuclear Information System (INIS)

    A project to demonstrate the feasibility of utilizing Atmospheric Release Advisory Capability (ARAC) limited service with commercial nuclear power plants and their associated state offices of emergency preparedness is discussed. Preliminary planning, installation and testing of the ARAC site facilities at Indian Point Nucler Power Station, New York State; at New York State Office of Emergency Preparedness, Albany, New York; at Rancho Seco Nuclear Generating Station, California; and at the State of California Office of Emergency Services, Sacramento, California, are summarized. ARAC participation in the Robert E. Ginna nuclear generating plant accident in New York on January 25, 1982, is discussed. The ARAC system is evaluated with emphasis on communications, the suite of models contained within the ARAC system, and the staff. The implications of this project in designing the next-generation ARAC system to service federal and state needs are assessed

  11. Utilization of the atmospheric release advisory capability (ARAC) services during and after the Three Mile Island accident

    International Nuclear Information System (INIS)

    At 0820 PST on 28 March 1979, the Department of Energy's Emergency Operations Center advised the Atmospheric Release Advisory Capability (ARAC) that the Three Mile Island nuclear power plant in Harrisburg, Pennsylvania, had experienced an accident some four hours earlier, resulting in the atmospheric release of xenon-133 and krypton-88. This report describes ARAC's response to the Three Mile Island accident, including the role ARAC played throughout the 20 days that real-time assessments were made available to the Department of Energy on-scene commander. It also describes the follow-up population-dose calculations performed for the President's Commission on Three Mile Island. At the request of the Nuclear Regulatory Commission, a questionnaire addressing the usefulness of ARAC products during the accident was sent to ARAC-product users. A summary of the findings from this questionnaire, along with recommendations for improving ARAC service, is also presented. The accident at Mississauga, Ontario, Canada, is discussed in the context of a well-planned emergency response by local and Federal officials

  12. Utilization of the atmospheric release advisory capability (ARAC) services during and after the Three Mile Island accident

    Energy Technology Data Exchange (ETDEWEB)

    Knox, J.B.; Dickerson, M.H.; Greenly, G.D.; Gudiksen, P.H.; Sullivan, T.J.

    1980-07-01

    At 0820 PST on 28 March 1979, the Department of Energy's Emergency Operations Center advised the Atmospheric Release Advisory Capability (ARAC) that the Three Mile Island nuclear power plant in Harrisburg, Pennsylvania, had experienced an accident some four hours earlier, resulting in the atmospheric release of xenon-133 and krypton-88. This report describes ARAC's response to the Three Mile Island accident, including the role ARAC played throughout the 20 days that real-time assessments were made available to the Department of Energy on-scene commander. It also describes the follow-up population-dose calculations performed for the President's Commission on Three Mile Island. At the request of the Nuclear Regulatory Commission, a questionnaire addressing the usefulness of ARAC products during the accident was sent to ARAC-product users. A summary of the findings from this questionnaire, along with recommendations for improving ARAC service, is also presented. The accident at Mississauga, Ontario, Canada, is discussed in the context of a well-planned emergency response by local and Federal officials.

  13. National Atmospheric Release Advisory Center Dispersion Modeling of the Full-scale Radiological Dispersal Device (FSRDD) Field Trials.

    Science.gov (United States)

    Neuscamman, Stephanie; Yu, Kristen

    2016-05-01

    The results of the National Atmospheric Release Advisory Center (NARAC) model simulations are compared to measured data from the Full-Scale Radiological Dispersal Device (FSRDD) field trials. The series of explosive radiological dispersal device (RDD) experiments was conducted in 2012 by Defence Research and Development Canada (DRDC) and collaborating organizations. During the trials, a wealth of data was collected, including a variety of deposition and air concentration measurements. The experiments were conducted with one of the stated goals being to provide measurements to atmospheric dispersion modelers. These measurements can be used to facilitate important model validation studies. For this study, meteorological observations recorded during the tests are input to the diagnostic meteorological model, ADAPT, which provides 3-D, time-varying mean wind and turbulence fields to the LODI dispersion model. LODI concentration and deposition results are compared to the measured data, and the sensitivity of the model results to changes in input conditions (such as the particle activity size distribution of the source) and model physics (such as the rise of the buoyant cloud of explosive products) is explored. The NARAC simulations predicted the experimentally measured deposition results reasonably well considering the complexity of the release. Changes to the activity size distribution of the modeled particles can improve the agreement of the model results to measurement.

  14. Atmospheric release advisory capability: year 2000 documentation

    Energy Technology Data Exchange (ETDEWEB)

    Walker, H

    1999-06-01

    This checklist provides the minimum requirements to be met for the IV and V of Y2K compliance for each mission-critical system. However, please note that other important items specific to your Program, Field or Site Offices, or Laboratory may not be adequately addressed by this checklist. Consequently, it is the responsibility of each Local Y2K Project Coordinator to ensure that due diligence has been conducted, whereby every reasonable effort has been made to assure Y2K compliance, and these efforts have been documented. Additional requirements should be jointly reviewed and agreed to by the System Owner and the IV and V agent prior to its execution. The IV and V agent should undertake the activities necessary to address all items as thoroughly as possible. The System Owner should identify and be ready to provide access to any documents that will help in the IV and V process, such as requirement definition documents, test plans, test results, etc.

  15. Manual of dose evaluation from atmospheric releases

    International Nuclear Information System (INIS)

    Nuclear facilities are potential sources of release of radionuclides to atmosphere. The release may be a routine one as a part of gaseous radioactive effluents or unintentional one as due to accidential situations. These releases, however, result into radiological doses to the population arising out of passage of and submersion into radioactive cloud, inhalation of radionuclides, and contaminated food chain. This manual has been prepared to serve as a reference book for computation and evaluation of doses from atmospheric releases of radionuclides from nuclear facilities. The various steps in the dose evaluation and the scheme of computation of external gamma dose, immersion beta-dose and inhalation dose are described. Plume gamma doses are compiled using the actual conical shape of the plume and Pasquill-Gifford dispersion model. Utility tables are given for unit release and unit wind speed. The tables are divided into two categories: those giving gamma-dose from the plume and those involving the ground level concentration. The doses and concentration have been given for 21 distances varying from 0.1 to 100 kms, 10 heights ranging from 0.0 to 200 meters and ten gamma energies ranging from 0.150 to 3 MeV. The concentration distribution and external gamma-dose in a short term plume due to short term releases and those due to continuous releases, hence giving rise to long term concentrations, are given in a separate set of tables. For computation of doses through inhalation route, through immersion route and ingestion route via ground contramination, data from ICRP-30 for a few radionuclides are tabulated. The effect of site topography is introduced as correction factors. Sampling time correction factors are also introduced. (M.G.B.)

  16. Charter for the ARM Atmospheric Modeling Advisory Group

    Energy Technology Data Exchange (ETDEWEB)

    Advisory Group, ARM Atmospheric Modeling

    2016-05-01

    The Atmospheric Modeling Advisory Group of the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Climate Research Facility is guided by the following: 1. The group will provide feedback on the overall project plan including input on how to address priorities and trade-offs in the modeling and analysis workflow, making sure the modeling follows general best practices, and reviewing the recommendations provided to ARM for the workflow implementation. 2. The group will consist of approximately 6 members plus the PI and co-PI of the Large-Eddy Simulation (LES) ARM Symbiotic Simulation and Observation (LASSO) pilot project. The ARM Technical Director, or his designee, serves as an ex-officio member. This size is chosen based on the ability to efficiently conduct teleconferences and to span the general needs for input to the LASSO pilot project.

  17. Dynamic Data-Driven Event Reconstruction for Atmospheric Releases

    Energy Technology Data Exchange (ETDEWEB)

    Kosovic, B; Belles, R; Chow, F K; Monache, L D; Dyer, K; Glascoe, L; Hanley, W; Johannesson, G; Larsen, S; Loosmore, G; Lundquist, J K; Mirin, A; Neuman, S; Nitao, J; Serban, R; Sugiyama, G; Aines, R

    2007-02-22

    developed a Markov Chain Monte Carlo (MCMC) stochastic methodology and demonstrated its effectiveness by reconstructing a wide range of release scenarios, using synthetic as well as real-world data. Data for evaluation of our event reconstruction capability were drawn from the short-range Prairie Grass, Copenhagen, and Joint Urban 2003 field experiments and a continental-scale real-world accidental release in Algeciras, Spain. The method was tested using a variety of forward models, including a Gaussian puff dispersion model INPUFF, the regional-to-continental scale Lagrangian dispersion model LODI (the work-horse real-time operational dispersion model used by the National Atmospheric Release Advisory Center), the empirical urban model UDM, and the building-scale computational computational fluid dynamics code FEM3MP. The robustness of the Bayesian methodology was demonstrated via the use of subsets of the available concentration data and by introducing error into some of the measurements. These tests showed that the Bayesian approach is capable of providing reliable estimates of source characteristics even in cases of limited or significantly corrupted data. For more effective treatment of strongly time-dependent problems, we developed a Sequential Monte Carlo (SMC) approach. To achieve the best performance under a wide range of conditions we combined SMC and MCMC sampling into a hybrid methodology. We compared the effectiveness and advantages of this approach relative to MCMC using a set of synthetic data examples. Our dynamic data-driven event reconstruction capability seamlessly integrates observational data streams with predictive models, in order to provide the best possible estimates of unknown source term parameters, as well as optimal and timely situation analyses consistent with both models and data.

  18. 75 FR 38079 - National Oceanic and Atmospheric Administration (NOAA) Science Advisory Board (SAB)

    Science.gov (United States)

    2010-07-01

    ... Gulf of Mexico; (2) Grand Scientific Challenges: Results From the NOAA Science Workshop; (3) NOAA... National Oceanic and Atmospheric Administration (NOAA) Science Advisory Board (SAB) AGENCY: Office of... of Commerce (DOC). ACTION: Notice of open meeting. SUMMARY: The Science Advisory Board (SAB)...

  19. Atmospheric Dispersion Modeling of the February 2014 Waste Isolation Pilot Plant Release

    Energy Technology Data Exchange (ETDEWEB)

    Nasstrom, John [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Piggott, Tom [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Simpson, Matthew [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Lobaugh, Megan [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Tai, Lydia [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Pobanz, Brenda [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Yu, Kristen [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-07-22

    This report presents the results of a simulation of the atmospheric dispersion and deposition of radioactivity released from the Waste Isolation Pilot Plant (WIPP) site in New Mexico in February 2014. These simulations were made by the National Atmospheric Release Advisory Center (NARAC) at Lawrence Livermore National Laboratory (LLNL), and supersede NARAC simulation results published in a previous WIPP report (WIPP, 2014). The results presented in this report use additional, more detailed data from WIPP on the specific radionuclides released, radioactivity release amounts and release times. Compared to the previous NARAC simulations, the new simulation results in this report are based on more detailed modeling of the winds, turbulence, and particle dry deposition. In addition, the initial plume rise from the exhaust vent was considered in the new simulations, but not in the previous NARAC simulations. The new model results show some small differences compared to previous results, but do not change the conclusions in the WIPP (2014) report. Presented are the data and assumptions used in these model simulations, as well as the model-predicted dose and deposition on and near the WIPP site. A comparison of predicted and measured radionuclide-specific air concentrations is also presented.

  20. Atmospheric and liquid releases by hospitals

    International Nuclear Information System (INIS)

    In France, weekly, 250 nuclear medicine departments receive an average of 6560 GBq of unsealed sources of radionuclides. In vivo and in vitro uses result in few releases when radiopharmaceuticals are prepared, radioactive wastes and, for most administered activities, in dispersal by the patient into his environment. There are practically no direct gaseous effluents into the environment and liquid releases are very limited and occur after decay in storage vessels and regulatory control at the time of drainage. Constraints linked to the management and collection of long-lived radionuclides by ANDRA are subject to well established procedures. Most releases originate from patients, i.e. over 80% of the activities used in vivo for diagnostic or therapeutic purposes. Most radionuclides have short half-lives and belong to the low-toxicity class (99mTc: 6 h, 133Xe: 5.4 d, 201T1: 3.4 d). Iodine 131 widely used for therapeutic purposes has a high radiotoxicity (class 2) and must be considered separately; when high activities are delivered - about 3.7 GBq - the patient is maintained in controlled area, mainly for urine collection, but he remains a source of releases after his exit. (authors). 8 refs., 7 tabs

  1. An atmospheric tritium release database for model comparisons. Revision 1

    International Nuclear Information System (INIS)

    A database of vegetation, soil, and air tritium concentrations at gridded coordinate locations following nine accidental atmospheric releases is described. While none of the releases caused a significant dose to the public, the data collected are valuable for comparison with the results of tritium transport models used for risk assessment. The largest, potential, individual off-site dose from any of the releases was calculated to be 1.6 mrem. The population dose from this same release was 46 person-rem which represents 0.04% of the natural background radiation dose to the population in the path of the release

  2. An atmospheric tritium release database for model comparisons

    International Nuclear Information System (INIS)

    A database of vegetation, soil, and air tritium concentrations at gridded coordinate locations following nine accidental atmospheric releases is described. While none of the releases caused a significant dose to the public, the data collected is valuable for comparison with the results of tritium transport models used for risk assessment. The largest, potential, individual off-site dose from any of the releases was calculated to be 1.6 mrem. The population dose from this same release was 46 person-rem which represents 0.04% of the natural background radiation dose to the population in the path of the release

  3. Static and mobile networks design for atmospheric accidental releases monitoring

    International Nuclear Information System (INIS)

    The global context of my PhD thesis work is the optimization of air pollution monitoring networks, but more specifically it concerns the monitoring of accidental releases of radionuclides in air. The optimization problem of air quality measuring networks has been addresses in the literature. However, it has not been addresses in the context of surveillance of accidental atmospheric releases. The first part of my thesis addresses the optimization of a permanent network of monitoring of radioactive aerosols in the air, covering France. The second part concerns the problem of targeting of observations in case of an accidental release of radionuclides from a nuclear plant. (author)

  4. Distributed emergency response system to model dispersion and deposition of atmospheric releases

    International Nuclear Information System (INIS)

    Aging hardware and software and increasing commitments by the Departments of Energy and Defense have led us to develop a new, expanded system to replace the existing Atmospheric Release Advisory Capability (ARAC) system. This distributed, computer-based, emergency response system is used by state and federal agencies to assess the environmental health hazards resulting from an accidental release of radioactive material into the atmosphere. Like its predecessor, the expanded system uses local meteorology (e.g., wind speed and wind direction), as well as terrain information, to simulate the transport and dispersion of the airborne material. The system also calculates deposition and dose and displays them graphically over base maps of the local geography for use by on-site authorities. This paper discusses the limitations of the existing ARAC system. It also discusses the components and functionality of the new system, the technical difficulties encountered and resolved in its design and implementation, and the software methodologies and tools employed in its development

  5. Improved Meteorological Input for Atmospheric Release Decision support Systems and an Integrated LES Modeling System for Atmospheric Dispersion of Toxic Agents: Homeland Security Applications

    Energy Technology Data Exchange (ETDEWEB)

    Arnold, E; Simpson, M; Larsen, S; Gash, J; Aluzzi, F; Lundquist, J; Sugiyama, G

    2010-04-26

    When hazardous material is accidently or intentionally released into the atmosphere, emergency response organizations look to decision support systems (DSSs) to translate contaminant information provided by atmospheric models into effective decisions to protect the public and emergency responders and to mitigate subsequent consequences. The Department of Homeland Security (DHS)-led Interagency Modeling and Atmospheric Assessment Center (IMAAC) is one of the primary DSSs utilized by emergency management organizations. IMAAC is responsible for providing 'a single piont for the coordination and dissemination of Federal dispersion modeling and hazard prediction products that represent the Federal position' during actual or potential incidents under the National Response Plan. The Department of Energy's (DOE) National Atmospheric Release Advisory Center (NARAC), locatec at the Lawrence Livermore National Laboratory (LLNL), serves as the primary operations center of the IMAAC. A key component of atmospheric release decision support systems is meteorological information - models and data of winds, turbulence, and other atmospheric boundary-layer parameters. The accuracy of contaminant predictions is strongly dependent on the quality of this information. Therefore, the effectiveness of DSSs can be enhanced by improving the meteorological options available to drive atmospheric transport and fate models. The overall goal of this project was to develop and evaluate new meteorological modeling capabilities for DSSs based on the use of NASA Earth-science data sets in order to enhance the atmospheric-hazard information provided to emergency managers and responders. The final report describes the LLNL contributions to this multi-institutional effort. LLNL developed an approach to utilize NCAR meteorological predictions using NASA MODIS data for the New York City (NYC) region and demonstrated the potential impact of the use of different data sources and data

  6. Modified drug release using atmospheric pressure plasma deposited siloxane coatings

    Science.gov (United States)

    Dowling, D. P.; Maher, S.; Law, V. J.; Ardhaoui, M.; Stallard, C.; Keenan, A.

    2016-09-01

    This pilot study evaluates the potential of atmospheric plasma polymerised coatings to modify the rate of drug release from polymeric substrates. The antibiotic rifampicin was deposited in a prototype multi-layer drug delivery system, consisting of a nebulized layer of active drug between a base layer of TEOS deposited on a plastic substrate (polystyrene) and an overlying layer of plasma polymerised PDMS. The polymerised TEOS and PDMS layers were deposited using a helium atmospheric plasma jet system. Elution of rifampicin was measured using UV-VIS spectroscopy, in addition to a antimicrobial well diffusion assay with an established indicator organism. The multi-layered plasma deposited coatings significantly extended the duration of release of the rifampicin from 24 h for the uncoated polymer to 144 h for the coated polymer.

  7. Savannah River Site radioiodine atmospheric releases and offsite maximum doses

    Energy Technology Data Exchange (ETDEWEB)

    Marter, W.L.

    1990-11-01

    Radioisotopes of iodine have been released to the atmosphere from the Savannah River Site since 1955. The releases, mostly from the 200-F and 200-H Chemical Separations areas, consist of the isotopes, I-129 and 1-131. Small amounts of 1-131 and 1-133 have also been released from reactor facilities and the Savannah River Laboratory. This reference memorandum was issued to summarize our current knowledge of releases of radioiodines and resultant maximum offsite doses. This memorandum supplements the reference memorandum by providing more detailed supporting technical information. Doses reported in this memorandum from consumption of the milk containing the highest I-131 concentration following the 1961 1-131 release incident are about 1% higher than reported in the reference memorandum. This is the result of using unrounded 1-131 concentrations of I-131 in milk in this memo. It is emphasized here that this technical report does not constitute a dose reconstruction in the same sense as the dose reconstruction effort currently underway at Hanford. This report uses existing published data for radioiodine releases and existing transport and dosimetry models.

  8. Isotopic signature of atmospheric xenon released from light water reactors

    International Nuclear Information System (INIS)

    A global monitoring system for atmospheric xenon radioactivity is being established as part of the International Monitoring System to verify compliance with the Comprehensive Nuclear-Test-Ban Treaty (CTBT). The isotopic activity ratios of 135Xe, 133mXe, 133Xe and 131mXe are of interest for distinguishing nuclear explosion sources from civilian releases. Simulations of light water reactor (LWR) fuel burn-up through three operational reactor power cycles are conducted to explore the possible xenon isotopic signature of nuclear reactor releases under different operational conditions. It is studied how ratio changes are related to various parameters including the neutron flux, uranium enrichment and fuel burn-up. Further, the impact of diffusion and mixing on the isotopic activity ratio variability are explored. The simulations are validated with reported reactor emissions. In addition, activity ratios are calculated for xenon isotopes released from nuclear explosions and these are compared to the reactor ratios in order to determine whether the discrimination of explosion releases from reactor effluents is possible based on isotopic activity ratios

  9. Radiation doses from Hanford site releases to the atmosphere

    International Nuclear Information System (INIS)

    Radiation doses to individuals were estimated for the years 1944-1992. The dose estimates were based on the radioactive-releases from the Hanford Site in south central Washington. Conceptual models and computer codes were used to reconstruct doses through the early 1970s. The published Hanford Site annual environmental data were used to complete the does history through 1992. The most significant exposure pathway was found to be the consumption of cow's milk containing iodine-131. For the atmospheric pathway, median cumulative dose estimates to the thyroid of children ranged from < 0.1 to 235 rad throughout the area studied. The geographic distribution of the dose levels was directly related to the pattern of iodine-131 deposition and was affected by the distribution of commercial milk and leafy vegetables. For the atmospheric pathway, the-highest estimated cumulative-effective-dose-equivalent (EDE) to an adult was estimated to be 1 rem at Ringold, Washington for the period 1944-1992. For the Columbia River pathway, cumulative EDE estimates ranged from <0.5 to l.5 rem cumulative dose to maximally exposed adults downriver from the Hanford Site for the years 1944-1992. The most significant river exposure pathway was consumption of resident fish containing phosphorus-32 and zinc-65

  10. ATMOSPHERIC RELEASES OF HEXAVALENT CHROMIUM FROM HARD CHROMIUM PLATING OPERATIONS

    Science.gov (United States)

    The University of Central Florida Department of Civil and Environmental Engineering is investigating methods for improved estimation of chemical releases which require reporting under provisions of SARA Title III (Toxic Release Inventory, Form R). This paper describes results fr...

  11. Characterisation of prompt and delayed atmospheric radioactivity releases from underground nuclear tests at Nevada as a function of release time

    International Nuclear Information System (INIS)

    A database with information on about 500 cases of atmospheric radioactivity releases from underground nuclear tests is analysed. The data are statistically evaluated and systematically aggregated in order to characterise prompt uncontrolled as well as delayed operational releases of radioactivity into the atmosphere. Conclusions are drawn on the main features of releases that can be expected from underground nuclear tests as a function of release time. These findings are relevant for developing and validating methods to be applied in global monitoring of atmospheric radioactivity to verify compliance with the comprehensive nuclear-test-ban treaty (CTBT). The Nevada data are consistent with full in-growth from the precursors prior to release irrespective of the release time. As a conclusion, there is no significant fractionation between the xenon isotopes and the precursors on any of the relevant pathways of operational releases. Though less data are available for uncontrolled releases, the same conclusion appears likely. The spread over many orders of magnitude observed for xenon isotopic ratios can mainly be related to the activity change with time. Accordingly, the isotopic ratios are a reliable parameter to facilitate source discrimination and assessment of the event time.

  12. A model for long range atmospheric dispersion of radionuclides released over a short period

    International Nuclear Information System (INIS)

    This report is the fourth in a series which gives practical guidance on the estimation of the dispersion of radioactive material released to the atmosphere. It represents the conclusions of a Working Group established to review recent developments in atmospheric dispersion modelling and to propose models for use within the UK. This report describes a model considered suitable for calculating dispersion at long range from releases of short duration. (author)

  13. Atmospheric dispersion models for application in relation to radionuclide releases

    International Nuclear Information System (INIS)

    In this document, a state-of-art review of dispersion models relevant to local, regional and global scales and applicable to radionuclide discharges of a continuous and discontinuous nature is presented. The theoretical basis of the models is described in chapter 2, while the uncertainty inherent in model predictions is considered in chapter 6. Chapters 3 to 5 of this report describe a number of models for calculating atmospheric dispersion on local, regional and global scales respectively

  14. MODELING ATMOSPHERIC RELEASES OF TRITIUM FROM NUCLEAR INSTALLATIONS

    Energy Technology Data Exchange (ETDEWEB)

    Okula, K

    2007-01-17

    Tritium source term analysis and the subsequent dispersion and consequence analyses supporting the safety documentation of Department of Energy nuclear facilities are especially sensitive to the applied software analysis methodology, input data and user assumptions. Three sequential areas in tritium accident analysis are examined in this study to illustrate where the analyst should exercise caution. Included are: (1) the development of a tritium oxide source term; (2) use of a full tritium dispersion model based on site-specific information to determine an appropriate deposition scaling factor for use in more simplified, broader modeling, and (3) derivation of a special tritium compound (STC) dose conversion factor for consequence analysis, consistent with the nature of the originating source material. It is recommended that unless supporting, defensible evidence is available to the contrary, the tritium release analyses should assume tritium oxide as the species released (or chemically transformed under accident's environment). Important exceptions include STC situations and laboratory-scale releases of hydrogen gas. In the modeling of the environmental transport, a full phenomenology model suggests that a deposition velocity of 0.5 cm/s is an appropriate value for environmental features of the Savannah River Site. This value is bounding for certain situations but non-conservative compared to the full model in others. Care should be exercised in choosing other factors such as the exposure time and the resuspension factor.

  15. Pulsating aurora induced by upper atmospheric barium releases

    Science.gov (United States)

    Deehr, C.; Romick, G.

    1977-01-01

    The paper reports the apparent generation of pulsating aurora by explosive releases of barium vapor near 250 km altitude. This effect occurred only when the explosions were in the path of precipitating electrons associated with the visible aurora. Each explosive charge was a standard 1.5 kg thermite mixture of Ba and CuO with an excess of Ba metal which was vaporized and dispersed by the thermite explosion. Traces of Sr, Na, and Li were added to some of the charges, and monitoring was achieved by ground-based spectrophotometric observations. On March 28, 1976, an increase in emission at 5577 A and at 4278 A was observed in association with the first two bursts, these emissions pulsating with roughly a 10 sec period for approximately 60 to 100 sec after the burst.

  16. Upper-ocean-to-atmosphere radiocarbon offsets imply fast deglacial carbon dioxide release.

    Science.gov (United States)

    Rose, Kathryn A; Sikes, Elisabeth L; Guilderson, Thomas P; Shane, Phil; Hill, Tessa M; Zahn, Rainer; Spero, Howard J

    2010-08-26

    Radiocarbon in the atmosphere is regulated largely by ocean circulation, which controls the sequestration of carbon dioxide (CO(2)) in the deep sea through atmosphere-ocean carbon exchange. During the last glaciation, lower atmospheric CO(2) levels were accompanied by increased atmospheric radiocarbon concentrations that have been attributed to greater storage of CO(2) in a poorly ventilated abyssal ocean. The end of the ice age was marked by a rapid increase in atmospheric CO(2) concentrations that coincided with reduced (14)C/(12)C ratios (Delta(14)C) in the atmosphere, suggesting the release of very 'old' ((14)C-depleted) CO(2) from the deep ocean to the atmosphere. Here we present radiocarbon records of surface and intermediate-depth waters from two sediment cores in the southwest Pacific and Southern oceans. We find a steady 170 per mil decrease in Delta(14)C that precedes and roughly equals in magnitude the decrease in the atmospheric radiocarbon signal during the early stages of the glacial-interglacial climatic transition. The atmospheric decrease in the radiocarbon signal coincides with regionally intensified upwelling and marine biological productivity, suggesting that CO(2) released by means of deep water upwelling in the Southern Ocean lost most of its original depleted-(14)C imprint as a result of exchange and isotopic equilibration with the atmosphere. Our data imply that the deglacial (14)C depletion previously identified in the eastern tropical North Pacific must have involved contributions from sources other than the previously suggested carbon release by way of a deep Southern Ocean pathway, and may reflect the expanded influence of the (14)C-depleted North Pacific carbon reservoir across this interval. Accordingly, shallow water masses advecting north across the South Pacific in the early deglaciation had little or no residual (14)C-depleted signals owing to degassing of CO(2) and biological uptake in the Southern Ocean.

  17. MAXINE A Spreadsheet for Estimating Dose from Chronic Atmospheric Radioactive Releases

    CERN Document Server

    Simpkins, A A

    2002-01-01

    MAXINE is an EXCEL(C) spreadsheet, which is used to estimate dose to individuals for routine atmospheric releases of radioactive materials. MAXINE does not contain an atmospheric dispersion model, but rather doses are estimated using air and ground concentrations as input. Minimal input is required to run the program and site specific parameters are used when possible. Complete code description, verification of models, and user's manual have been included.

  18. Decreased atmospheric sulfur deposition across the southeastern U.S.: when will watersheds release stored sulfate?

    Science.gov (United States)

    Rice, Karen C.; Scanlon, Todd S.; Lynch, Jason A.; Cosby, Bernard J.

    2014-01-01

    Emissions of sulfur dioxide (SO2) to the atmosphere lead to atmospheric deposition of sulfate (SO42-), which is the dominant strong acid anion causing acidification of surface waters and soils in the eastern United States (U.S.). Since passage of the Clean Air Act and its Amendments, atmospheric deposition of SO2 in this region has declined by over 80%, but few corresponding decreases in stream-water SO42- concentrations have been observed in unglaciated watersheds. We calculated SO42- mass balances for 27 forested, unglaciated watersheds from Pennsylvania to Georgia, by using total atmospheric deposition (wet plus dry) as input. Many of these watersheds still retain SO42-, unlike their counterparts in the northeastern U.S. and southern Canada. Our analysis showed that many of these watersheds should convert from retaining to releasing SO42- over the next two decades. The specific years when the watersheds crossover from retaining to releasing SO42- correspond to a general geographical pattern of later net watershed release from north to south. The single most important variable that explained the crossover year was the runoff ratio, defined as the ratio of annual mean stream discharge to precipitation. Percent clay content and mean soil depth were secondary factors in predicting crossover year. The conversion of watersheds from net SO42- retention to release anticipates more widespread reductions in stream-water SO42- concentrations in this region.

  19. ATMOSPHERIC RELEASES FROM STANDARDIZED NUCLEAR POWER PLANTS: A WIND TUNNEL STUDY

    Science.gov (United States)

    Laboratory experiments were conducted to simulate radiopollutant effluents released to the atmosphere from two standard design nuclear power plants. The main objective of the study was to compare the dispersion in the wake of the standardized nuclear power plants with that in a s...

  20. Real-Time Flavor Release from French Fries Using Atmospheric Pressure Chemical Ionization-Mass Spectrometry

    NARCIS (Netherlands)

    Loon, W.A.M.; Linssen, J.P.H.; Boelrijk, A.E.M.; Burgering, M.J.M.; Voragen, A.G.J.

    2005-01-01

    Flavor release from French fries was measured with atmospheric pressure chemical ionization-mass spectrometry (APCI-MS) using both assessors (in vivo) and a mouth model system (in vitro). Several volatiles measured with APCI were identified with MS-MS. The effect of frying time, salt addition, and a

  1. Recharge of the early atmosphere of Mars by impact-induced release of CO2

    Science.gov (United States)

    Carr, Michael H.

    1989-01-01

    The question as to whether high impact rates early in the history of Mars could have aided in maintaining a relatively thick CO2 atmosphere is discussed. Such impacts could have released CO2 into the atmosphere by burial, by shock-induced release during impact events, and by the addition of carbon to Mars from the impacting bolides. On the assumption that cratering rates on Mars were comparable to those of the moon's Nectarial period, burial rates are a result of 'impact gardening' at the end of heavy bombardment are estimated to have ranged from 20 to 45 m/million years; at these rates, 0.1-0.2 bar of CO2 would have been released every 10 million years as a result of burial to depths at which carbonate dissociation temperatures are encountered.

  2. Environmental consequences of uranium atmospheric releases from fuel cycle facility: II. The atmospheric deposition of uranium and thorium on plants.

    Science.gov (United States)

    Pourcelot, L; Masson, O; Renaud, P; Cagnat, X; Boulet, B; Cariou, N; De Vismes-Ott, A

    2015-03-01

    Uranium and thorium isotopes were measured in cypress leaves, wheat grains and lettuce taken in the surroundings of the uranium conversion facility of Malvési (South of France). The comparison of activity levels and activity ratios (namely (238)U/(232)Th and (230)Th/(232)Th) in plants with those in aerosols taken at this site and plants taken far from it shows that aerosols emitted by the nuclear site (uranium releases in the atmosphere by stacks and (230)Th-rich particles emitted from artificial ponds collecting radioactive waste mud) accounts for the high activities recorded in the plant samples close to the site. The atmospheric deposition process onto the plants appears to be the dominant process in plant contamination. Dry deposition velocities of airborne uranium and thorium were measured as 4.6 × 10(-3) and 5.0 × 10(-3) m s(-1), respectively.

  3. Environmental consequences of uranium atmospheric releases from fuel cycle facility: II. The atmospheric deposition of uranium and thorium on plants.

    Science.gov (United States)

    Pourcelot, L; Masson, O; Renaud, P; Cagnat, X; Boulet, B; Cariou, N; De Vismes-Ott, A

    2015-03-01

    Uranium and thorium isotopes were measured in cypress leaves, wheat grains and lettuce taken in the surroundings of the uranium conversion facility of Malvési (South of France). The comparison of activity levels and activity ratios (namely (238)U/(232)Th and (230)Th/(232)Th) in plants with those in aerosols taken at this site and plants taken far from it shows that aerosols emitted by the nuclear site (uranium releases in the atmosphere by stacks and (230)Th-rich particles emitted from artificial ponds collecting radioactive waste mud) accounts for the high activities recorded in the plant samples close to the site. The atmospheric deposition process onto the plants appears to be the dominant process in plant contamination. Dry deposition velocities of airborne uranium and thorium were measured as 4.6 × 10(-3) and 5.0 × 10(-3) m s(-1), respectively. PMID:25500060

  4. LOW-FREQUENCY RADIO OBSERVATIONS OF PICOFLARE CATEGORY ENERGY RELEASES IN THE SOLAR ATMOSPHERE

    International Nuclear Information System (INIS)

    We report low-frequency (80 MHz) radio observations of circularly polarized non-thermal type I radio bursts (noise storms) in the solar corona whose estimated energy is ∼1021 erg. These are the weakest energy release events reported to date in the solar atmosphere. The plot of the distribution of the number of bursts (dN) versus their corresponding peak flux density in the range S to S+dS shows a power-law behavior, i.e., dN ∝ S γ dS. The power-law index γ is in the range –2.2 to –2.7 for the events reported in the present work. The present results provide independent observational evidence for the existence of picoflare category energy releases in the solar atmosphere which are yet to be explored.

  5. MAXDOSE-SR: A routine release atmospheric dose model used at SRS

    Energy Technology Data Exchange (ETDEWEB)

    Simpkins, A.A.

    2000-02-09

    MAXDOSE-SR is a PC version of the dosimetry code MAXIGASP, which was used to calculate doses to the maximally exposed offsite individual for routine atmospheric releases of radioactive material at the Savannah River Site (SRS). Complete code description, verification of models, and user's manual have been included in this report. Minimal input is required to run the program, and site specific parameters are used when possible.

  6. Environmental consequences of uranium atmospheric releases from fuel cycle facility: II. The atmospheric deposition of uranium and thorium on plants

    International Nuclear Information System (INIS)

    Uranium and thorium isotopes were measured in cypress leaves, wheat grains and lettuce taken in the surroundings of the uranium conversion facility of Malvési (South of France). The comparison of activity levels and activity ratios (namely 238U/232Th and 230Th/232Th) in plants with those in aerosols taken at this site and plants taken far from it shows that aerosols emitted by the nuclear site (uranium releases in the atmosphere by stacks and 230Th-rich particles emitted from artificial ponds collecting radioactive waste mud) accounts for the high activities recorded in the plant samples close to the site. The atmospheric deposition process onto the plants appears to be the dominant process in plant contamination. Dry deposition velocities of airborne uranium and thorium were measured as 4.6 × 10−3 and 5.0 × 10−3 m s−1, respectively. - Highlights: • Uranium and thorium were measured in plants near the uranium conversion facility. • Activity ratios show that emissions account for the high activities recorded in the plants. • The atmospheric deposition process appears to dominate in plant contamination. • Dry deposition velocities of airborne uranium and thorium were determined

  7. Screening models for releases of radionuclides to atmosphere, surface water, and ground -- Work sheets

    International Nuclear Information System (INIS)

    Three levels of screening for the atmospheric transport pathways and two levels for surface water are presented. The ground has only one screening level. Level 1 is the simplest approach and incorporates a high degree of conservatism. The estimate of the effective dose for this level assumes a concentration based upon the radionuclide concentration at the point of emission to the environment, i.e., at the stack for atmospheric emissions, at the end of the effluent pipe for liquid effluent releases, and at a well because of the buried radioactive material. Levels 2 and 3 are presented for atmospheric releases, and Level 2 for surface water releases only and are more detailed and correspondingly less conservative. Level 2 screening accounts for dispersion in the atmosphere and in surface waters and combines all recognized pathways into the screening factor. For the atmospheric pathway, Level 3 screening includes more definitive pathways analysis. Should the user be found in compliance on the basis of Level 1 screening, no further calculations are required. If the user fails Level 1, the user proceeds to the next level and checks for compliance. This process is repeated until the user passes screening (is in compliance) or no further screening levels exist. If the user fails the final level, professional assistance should be obtained in environmental radiological assessment. Work sheets are designed to lead the user through screening in a step-by-step manner until compliance is demonstrated or it is determined that more sophisticated methods or expertise are needed. Flow diagrams are provided as a guide to identify key steps in the screening process

  8. Massive impact-induced release of carbon and sulfur gases in the early Earth's atmosphere

    Science.gov (United States)

    Marchi, S.; Black, B. A.; Elkins-Tanton, L. T.; Bottke, W. F.

    2016-09-01

    Recent revisions to our understanding of the collisional history of the Hadean and early-Archean Earth indicate that large collisions may have been an important geophysical process. In this work we show that the early bombardment flux of large impactors (>100 km) facilitated the atmospheric release of greenhouse gases (particularly CO2) from Earth's mantle. Depending on the timescale for the drawdown of atmospheric CO2, the Earth's surface could have been subject to prolonged clement surface conditions or multiple freeze-thaw cycles. The bombardment also delivered and redistributed to the surface large quantities of sulfur, one of the most important elements for life. The stochastic occurrence of large collisions could provide insights on why the Earth and Venus, considered Earth's twin planet, exhibit radically different atmospheres.

  9. Atmospheric plume progression as a function of time and distance from the release point for radioactive isotopes

    Energy Technology Data Exchange (ETDEWEB)

    Eslinger, Paul W.; Bowyer, Ted W.; Cameron, Ian M.; Hayes, James C.; Miley, Harry S.

    2015-10-01

    The International Monitoring System contains up to 80 stations around the world that have aerosol and xenon monitoring systems designed to detect releases of radioactive materials to the atmosphere from nuclear tests. A rule of thumb description of plume concentration and duration versus time and distance from the release point is useful when designing and deploying new sample collection systems. This paper uses plume development from atmospheric transport modeling to provide a power-law rule describing atmospheric dilution factors as a function of distance from the release point.

  10. An analytical model for radioactive pollutant release simulation in the atmospheric boundary layer

    Energy Technology Data Exchange (ETDEWEB)

    Weymar, Guilherme J.; Vilhena, Marco T.; Bodmann, Bardo E.J., E-mail: guicefetrs@gmail.com, E-mail: mtmbvilhena@gmail.com, E-mail: bejbodmann@gmail.com [Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS (Brazil). Programa de Pos-Graduacao em Engenharia Mecanica; Buske, Daniela; Quadros, Regis, E-mail: danielabuske@gmail.com, E-mail: quadros99@gmail.com [Universidade Federal de Pelotas (UFPel), Capao do Leao, RS (Brazil). Programa de Pos-Graduacao em Modelagem Matematica

    2013-07-01

    Simulations of emission of radioactive substances in the atmosphere from the Brazilian nuclear power plant Angra 1 are a necessary tool for control and elaboration of emergency plans as a preventive action for possible accidents. In the present work we present an analytical solution for radioactive pollutant dispersion in the atmosphere, solving the time-dependent three-dimensional advection-diffusion equation. The experiment here used as a reference in the simulations consisted of the controlled releases of radioactive tritiated water vapor from the meteorological tower close to the power plant at Itaorna Beach. The wind profile was determined using experimental meteorological data and the micrometeorological parameters were calculated from empirical equations obtained in the literature. We report on a novel analytical formulation for the concentration of products of a radioactive chain released in the atmospheric boundary layer and solve the set of coupled equations for each chain radionuclide by the GILTT solution, assuming the decay of all progenitors radionuclide for each equation as source term. Further we report on numerical simulations, as an explicit but fictitious example and consider three radionuclides in the radioactive chain of Uranium 235. (author)

  11. A model for short and medium range dispersion of radionuclides released to the atmosphere

    International Nuclear Information System (INIS)

    A Working Group was established to give practical guidance on the estimation of the dispersion of radioactive releases to the atmosphere. The dispersion is estimated in the short and medium range, that is from about 100 m to a few tens of kilometres from the source, and is based upon a Gaussian plume model. A scheme is presented for categorising atmospheric conditions and values of the associated dispersion parameters are given. Typical results are presented for releases in specific meteorological conditions and a scheme is included to allow for durations of release of up to 24 hours. Consideration has also been given to predicting longer term average concentrations, typically annual averages, and results are presented which facilitate site specific calculations. The results of the models are extended to 100 km from the source, but the increasing uncertainty with which results may be predicted beyond a few tens of kilometres from the source is emphasised. Three technical appendices provide some of the rationale behind the decisions made in adopting the various models in the proposed dispersion scheme. (author)

  12. The Risoe model for calculating the consequences of the release of radioactive material to the atmosphere

    International Nuclear Information System (INIS)

    A brief description is given of the model used at Risoe for calculating the consequences of releases of radioactive material to the atmosphere. The model is based on the Gaussian plume model, and it provides possibilities for calculation of: doses to individuals, collective doses, contamination of the ground, probability distribution of doses, and the consequences of doses for give dose-risk relationships. The model is implemented as a computer program PLUCON2, written in ALGOL for the Burroughs B6700 computer at Risoe. A short description of PLUCON2 is given. (author)

  13. Impact of atmospheric release in stable night meteorological conditions; can emergency models predict dispersion

    International Nuclear Information System (INIS)

    Atmospheric dispersion of pollutant or radionuclides in stratified meteorological condition, i.e. especially when weather conditions are very stable, mainly at night, is still poorly understood and not well apprehended by the operational atmospheric dispersion models. However, correctly predicting the dispersion of a radioactive plume, and estimating the radiological consequences for the population, following an unplanned atmospheric release of radionuclides are crucial steps in an emergency response. To better understand dispersion in these special weather conditions, IRSN performed a series of 22 air sampling campaigns between 2010 and 2013 in the vicinity of the La Hague nuclear reprocessing plant (AREVA - NC, France), at distances between 200 m and 3000 m from the facility. Krypton-85 (85Kr), a b-and g-emitting radionuclide, released during the reprocessing of spent nuclear fuel was used as a non-reactive tracer of radioactive plumes. Experimental campaigns were realized in stability class stable or very stable (E or F according to Pasquill classification) 18 times, and in neutral conditions (D according to Pasquill classification) 4 times. During each campaign, Krypton-85 real time measurement were made to find the plume around the plant, and then integrated samples (30 min) were collected in bag perpendicularly to the assumed wind direction axis. After measurement by gamma spectrometry, we have, when it was possible, estimate the point of impact and the width of the plume. The objective was to estimate the horizontal dispersion (width) of the plume at ground level in function of the distance and be able to calculate atmospheric transfer coefficients. In a second step, objective was to conclude on the use of common model and on their uncertainties. The results will be presented in terms of impact on the near-field. They will be compared with data obtained in previous years in neutral atmospheric conditions, and finally the results will be confronted with those

  14. Impact of atmospheric release in stable night meteorological conditions; can emergency models predict dispersion

    Energy Technology Data Exchange (ETDEWEB)

    Connan, O.; Hebert, D.; Solier, L.; Voiseux, C.; Lamotte, M.; Laguionie, P.; Maro, D.; Thomas, L. [IRSN/PRP-ENV/SERIS/LRC (France)

    2014-07-01

    Atmospheric dispersion of pollutant or radionuclides in stratified meteorological condition, i.e. especially when weather conditions are very stable, mainly at night, is still poorly understood and not well apprehended by the operational atmospheric dispersion models. However, correctly predicting the dispersion of a radioactive plume, and estimating the radiological consequences for the population, following an unplanned atmospheric release of radionuclides are crucial steps in an emergency response. To better understand dispersion in these special weather conditions, IRSN performed a series of 22 air sampling campaigns between 2010 and 2013 in the vicinity of the La Hague nuclear reprocessing plant (AREVA - NC, France), at distances between 200 m and 3000 m from the facility. Krypton-85 ({sup 85}Kr), a b-and g-emitting radionuclide, released during the reprocessing of spent nuclear fuel was used as a non-reactive tracer of radioactive plumes. Experimental campaigns were realized in stability class stable or very stable (E or F according to Pasquill classification) 18 times, and in neutral conditions (D according to Pasquill classification) 4 times. During each campaign, Krypton-85 real time measurement were made to find the plume around the plant, and then integrated samples (30 min) were collected in bag perpendicularly to the assumed wind direction axis. After measurement by gamma spectrometry, we have, when it was possible, estimate the point of impact and the width of the plume. The objective was to estimate the horizontal dispersion (width) of the plume at ground level in function of the distance and be able to calculate atmospheric transfer coefficients. In a second step, objective was to conclude on the use of common model and on their uncertainties. The results will be presented in terms of impact on the near-field. They will be compared with data obtained in previous years in neutral atmospheric conditions, and finally the results will be confronted with

  15. Estimates of Radioxenon Released from Southern Hemisphere Medical isotope Production Facilities Using Measured Air Concentrations and Atmospheric Transport Modeling

    International Nuclear Information System (INIS)

    The International Monitoring System (IMS) of the Comprehensive-Nuclear-Test-Ban-Treaty monitors the atmosphere for radioactive xenon leaking from underground nuclear explosions. Emissions from medical isotope production represent a challenging background signal when determining whether measured radioxenon in the atmosphere is associated with a nuclear explosion prohibited by the treaty. The Australian Nuclear Science and Technology Organisation (ANSTO) operates a reactor and medical isotope production facility in Lucas Heights, Australia. This study uses two years of release data from the ANSTO medical isotope production facility and 133Xe data from three IMS sampling locations to estimate the annual releases of 133Xe from medical isotope production facilities in Argentina, South Africa, and Indonesia. Atmospheric dilution factors derived from a global atmospheric transport model were used in an optimization scheme to estimate annual release values by facility. The annual releases of about 6.8 x 1014 Bq from the ANSTO medical isotope production facility are in good agreement with the sampled concentrations at these three IMS sampling locations. Annual release estimates for the facility in South Africa vary from 2.2 x 1016 to 2.4 x 1016 Bq and estimates for the facility in Indonesia vary from 9.2 x 1013 to 3.7 x 1014 Bq. Although some releases from the facility in Argentina may reach these IMS sampling locations, the solution to the objective function is insensitive to the magnitude of those releases

  16. Flavor release measurement by atmospheric pressure chemical ionization ion trap mass spectrometry, construction of interface and mathematical modeling of release profiles

    DEFF Research Database (Denmark)

    Haahr, Anne-Mette; Madsen, Henrik; Smedsgaard, Jørn;

    2003-01-01

    An instrumental on-line retronasal flavor analysis was developed to obtain information about the release of flavor compounds in expired air from humans during eating. The volatile flavor compounds were measured by ion trap mass spectrometry with an atmospheric pressure chemical ionization source...

  17. Estimation of radionuclide releases in atmosphere from Cernavoda NPP based on continuous gaseous effluent monitoring

    International Nuclear Information System (INIS)

    Monitoring of gaseous effluents from Cernavoda NPP is performed to assess the environmental impact of the plant operation. The results of the monitoring program are used to evaluate the population doses in order to ensure that the emissions of radionuclides in air are below regulatory limits and radiation doses are maintained ALARA. It complements, but is independent from the Operational Environmental Monitoring Program for Cernavoda NPP. Gaseous effluent monitors provide continuous indication of the radioactivity content in atmospheric emissions. Except for noble gases, these monitors also collect samples for later detailed analysis in the station Health Physics Laboratory. This paper presents the main equipment and the results of the gaseous effluents monitoring program in order to assess the impact of Cernavoda NPP operation and to predict the future releases as function of radionuclides concentrations in CANDU systems, based on the identified trends.(author)

  18. Regional scale atmospheric dispersion simulation of accidental releases of radionuclides from Fukushima Dai-ichi reactor

    Science.gov (United States)

    Srinivas, C. V.; Venkatesan, R.; Baskaran, R.; Rajagopal, V.; Venkatraman, B.

    2012-12-01

    This paper presents the results of regional scale atmospheric dispersion simulation of accidental emission of radionuclides from the Fukushima Daiichi Reactor, Japan following the Tohoku earthquake and tsunami event on 11 March 2011. The objective was to study the temporal behaviour of plume trajectory, concentration, deposition and radiation dose pattern over an 80 km range around the reactor. The time-varying meteorological parameters during the release period were simulated with a multi-scale nested atmospheric model WRF ARW and the trajectory, plume dispersion were computed with Lagrangian Particle Dispersion models HYSPLIT, FLEXPART using the available information on accidental source term. The simulations indicated that the wind flow over Japan during the release period was driven by the large scale extra-tropical westerly waves and associated low pressure systems. In the lower levels, the flow was influenced by the local topography/sea breeze causing occasional landward wind shift on the east coast of Japan. Simulated airflow trajectories revealed that the plume stayed over the ocean by westerly winds on most days and the radioactivity dispersed over sea surface. Landward trajectories were found on a few days due to southeasterly, easterly and northeasterly flow (15-17, 19-21 March 2011) during which much of the radionuclides deposited over the land region. The hotspot of depositions occurred over east Pacific Ocean near to Japan. Over the land relatively high depositions were simulated in a narrow zone of 20 km width and 80 km length in the northwest sector in agreement with monitor data. Simulations showed wet depositions over the land to be higher than the dry depositions during 12-30 March due to occurrence of rainfall on some days. Comparison of activity deposition and air dose values with available observations confirmed that the plume pattern in a finer length scale around the site could be simulated realistically and agree with the measurements

  19. 77 FR 58356 - Science Advisory Board

    Science.gov (United States)

    2012-09-20

    ... the meeting date. SUPPLEMENTARY INFORMATION: The Science Advisory Board (SAB) was established by a... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration Science Advisory Board AGENCY: Office of Oceanic...

  20. AIRWAY: a fortran computer program to estimate radiation dose commitments to man from the atmospheric release of radionuclides

    Energy Technology Data Exchange (ETDEWEB)

    Rider, J.L.

    1979-06-01

    The AIRWAY computer program was developed to estimate the radiation dose commitments accured by all the people affected by the atmospheric release of radionuclides from a nuclear facility. This computer program provides dose commitment estimates for people on the boundary of the facility, in the immediate vicinity (i.e., within 80 to 100 km) and in the portios of the world beyond the immediate vicinity which are affected by the release. The AIRWAY program considers dose commitments resulting from immersion in the atmosphere containing the released radionuclides, ingestion of contaminated food, inhalation of gaseous and suspended radioactivity, and exposure to ground deposits. The dose commitments for each of these pathways is explicitly calculated for each radionuclide released into the atmosphere and for each daughter of each released radionuclide. This is accomplished by calculating the air and ground concentrations of each daughter in each of the regions of interest using the release rate of the parent radionuclide. The AIRWAY computer program is considered to be a significant improvement over other programs in which the effect of daughter radionuclides must be approximated by separate releases.

  1. Observational Investigation of Energy Release in the Lower Solar Atmosphere of a Solar Flare

    CERN Document Server

    Sharykin, I N; Kosovichev, A G; Vargas-Dominguez, S; Zimovets, I V

    2016-01-01

    We study flare processes in the lower solar atmosphere using observational data for a M1-class flare of June 12, 2014, obtained by New Solar Telescope (NST/BBSO) and Helioseismic Magnetic Imager (HMI/SDO). The main goal is to understand triggers and manifestations of the flare energy release in the lower layers of the solar atmosphere (the photosphere and chromosphere) using high-resolution optical observations and magnetic field measurements. We analyze optical images, HMI Dopplergrams and vector magnetograms, and use Non-Linear Force-Free Field (NLFFF) extrapolations for reconstruction of the magnetic topology. The NLFFF modelling reveals interaction of oppositely directed magnetic flux-tubes in the PIL. These two interacting magnetic flux tubes are observed as a compact sheared arcade along the PIL in the high-resolution broad-band continuum images from NST. In the vicinity of the PIL, the NST H alpha observations reveal formation of a thin three-ribbon structure corresponding to the small-scale photospher...

  2. Modeling accidental releases to the atmosphere of a dense reactive chemical (Uranium hexafluoride)

    Science.gov (United States)

    Hanna, Steven R.; Chang, Joseph C.; Zhang, Xiaoming J.

    In order to model the atmospheric transport and dispersion of dense reactive chemicals such as uranium hexafluoride (UF 6), it is necessary to include algorithms that account for heat exchanges due to chemical reactions and phase changes. UF 6 may be released accidentally at uranium-enrichment plants as a warm gas from a pipeline rupture, or as a flashing liquid from a pressurized tank or line break. The resulting plume is initially very dense due to the large molecular weight of UF 6, but may become lighter-than-air as the UF 6 reacts with water vapor to form HF, which has a molecular weight less than that of air, and which may cause an increase in plume temperature due to the exothermic reaction. The major chemical and thermodynamic processes related to UF 6 have been incorporated in a modified version of an existing dense gas model, HGSYSTEM. The same general approach could be used to include other reactive chemicals in the modeling system. New modules that are applicable to any type of chemical release have also been added to HGSYSTEM to account for building downwash, lift-off of warm plumes from the ground, and deposition. The revised HGSYSTEM/UF 6 model has been evaluated with field data from UF 6 tests. The sensitivities of the model predictions to variations in input parameters have been assessed.

  3. Chamber experiments to investigate the release of fungal IN into the atmosphere

    Science.gov (United States)

    Kunert, Anna Theresa; Krüger, Mira; Scheel, Jan Frederik; Helleis, Frank; Pöschl, Ulrich; Fröhlich-Nowoisky, Janine

    2015-04-01

    Biological aerosol particles are ubiquitous in the atmosphere. Several types of microorganisms like bacteria, fungi and lichen have been identified as sources of biological ice nuclei (IN). They are a potentially strong source of atmospheric IN, as some of them are able to catalyze ice formation at relatively warm subfreezing temperatures. Common plant-associated bacteria are the best-known biological IN but recently ice nucleation activity in a variety of fungal species such as Mortierella alpina, Isaria farinosa, Acremonium implicatum was found. These fungal species are widely spread throughout the world and are present in soil and air. Their IN seem to be proteins, which are not anchored in the fungal cell wall. To which extent these small, cell-free IN are emitted directly into the atmosphere remains unexplored just as other processes, which probably indirectly release fungal IN e.g. absorbed onto soil dust particles. To analyze the release of fungal IN into the air, we designed a chamber, whose main principle is based on the emission of particles into a closed gas compartment and the subsequent collection of these particles in water. The concentration of the collected IN in the water is determined by droplet freezing assays. For a proof of principles, fungal washing water containing cell-free IN was atomized by an aerosol generator and the produced gas stream was lead through a water trap filled with pure water. Preliminary results show a successful proof of principles. The chamber design is capable of collecting aerosolic IN produced by an aerosol generator with fungal washing water. In ongoing experiments, alive or dead fungal cultures are placed into the chamber and a gentle, particle free air stream is directed over the fungi surface. This gas stream is also lead through water to collect particles, which might be emitted either actively or passively by the fungi. Further experiments will be e.g. conducted under different relative humidities. Results

  4. Using Atmospheric Dispersion Theory to Inform the Design of a Short-lived Radioactive Particle Release Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Rishel, Jeremy P.; Keillor, Martin E.; Arrigo, Leah M.; Baciak, James E.; Detwiler, Rebecca S.; Kernan, Warnick J.; Kirkham, Randy R.; Milbrath, Brian D.; Seifert, Allen; Seifert, Carolyn E.; Smart, John E.

    2016-05-01

    Atmospheric dispersion theory can be used to predict ground deposition of particulates downwind of a radionuclide release. This paper utilizes standard formulations found in Gaussian plume models to inform the design of an experimental release of short-lived radioactive particles into the atmosphere. Specifically, a source depletion algorithm is used to determine the optimum particle size and release height that maximizes the near-field deposition while minimizing the both the required source activity and the fraction of activity lost to long-distance transport. The purpose of the release is to provide a realistic deposition pattern that might be observed downwind of a small-scale vent from an underground nuclear explosion. The deposition field will be used, in part, to investigate several techniques of gamma radiation survey and spectrometry that could be utilized by an On-Site Inspection team under the verification regime of the Comprehensive Nuclear-Test-Ban Treaty.

  5. Generalized uniform formulae for atmospheric dispersion of activities released from a ventilation stack or from a leaky reactor building

    International Nuclear Information System (INIS)

    Relations are given for the calculation of the atmospheric transport and dispersion of industrial gaseous wastes released from the stacks of factories, power plants and nuclear power plants. Modified formulae are derived for stack disposal from a small stack, also applicable in calculating the gaseous waste release from a leaky reactor. Uniform generalized formulae are presented serving the calculation of both high and short stack disposals as well as of reactor building leakages. (L.O.)

  6. Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of an atmospheric dispersion model with an improved deposition scheme and oceanic dispersion model

    OpenAIRE

    G. Katata; Chino, M; T. Kobayashi; Terada, H.; Ota, M; Nagai, H.; M. Kajino; Draxler, R; M. C. Hort; Malo, A.; Torii, T.; Y. Sanada

    2015-01-01

    Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Daiichi Nuclear Power Station (FNPS1) accident and their atmospheric and marine dispersion are essential to evaluate the environmental impacts and resultant radiological doses to the public. In this paper, we estimate the detailed atmospheric releases during the accident using a reverse estimation method which calculates the release rates of radionuclides by comparing measure...

  7. Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of atmospheric dispersion model with improved deposition scheme and oceanic dispersion model

    OpenAIRE

    G. Katata; Chino, M; T. Kobayashi; Terada, H.; Ota, M; Nagai, H.; M. Kajino; Draxler, R; M. C. Hort; Malo, A.; Torii, T.; Y. Sanada

    2014-01-01

    Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Dai-ichi Nuclear Power Station (FNPS1) accident and their atmospheric and marine dispersion are essential to evaluate the environmental impacts and resultant radiological doses to the public. In this paper, we estimate a detailed time trend of atmospheric releases during the accident by combining environmental monitoring data with atmospheric model simulations from WSP...

  8. 78 FR 38297 - Science Advisory Board (SAB)

    Science.gov (United States)

    2013-06-26

    ...) NOAA Social Science Needs Assessment; (3) Terms of Reference and Membership Approach for Gulf Coast... National Oceanic and Atmospheric Administration Science Advisory Board (SAB) AGENCY: Office of Oceanic and Atmospheric Research (OAR), National Oceanic and Atmospheric Administration (NOAA), Department of...

  9. Probabilistic siting analysis of nuclear power plants emphasizing atmospheric dispersion of radioactive releases and radiation-induced health effects

    International Nuclear Information System (INIS)

    A presentation is made of probabilistic evaluation schemes for nuclear power plant siting. Effects on health attributable to ionizing radiation are reviewed, for the purpose of assessment of the numbers of the most important health effect cases in light-water reactor accidents. The atmospheric dispersion of radioactive releases from nuclear power plants is discussed, and there is presented an environmental consequence assessment model in which the radioactive releases and atmospheric dispersion of the releases are treated by the application of probabilistic methods. In the model, the environmental effects arising from exposure to radiation are expressed as cumulative probability distributions and expectation values. The probabilistic environmental consequence assessment model has been applied to nuclear power plant site evaluation, including risk-benefit and cost-benefit analyses, and the comparison of various alternative sites. (author)

  10. 77 FR 476 - Science Advisory Board

    Science.gov (United States)

    2012-01-05

    ... National Oceanic and Atmospheric Administration (NOAA) Science Advisory Board AGENCY: Office of Oceanic and... agenda of a forthcoming meeting of the NOAA Science Advisory Board. The members will discuss and provide... be reviewed prior to the meeting date. SUPPLEMENTARY INFORMATION: The Science Advisory Board...

  11. Model-Data Fusion and Adaptive Sensing for Large Scale Systems: Applications to Atmospheric Release Incidents

    Science.gov (United States)

    Madankan, Reza

    All across the world, toxic material clouds are emitted from sources, such as industrial plants, vehicular traffic, and volcanic eruptions can contain chemical, biological or radiological material. With the growing fear of natural, accidental or deliberate release of toxic agents, there is tremendous interest in precise source characterization and generating accurate hazard maps of toxic material dispersion for appropriate disaster management. In this dissertation, an end-to-end framework has been developed for probabilistic source characterization and forecasting of atmospheric release incidents. The proposed methodology consists of three major components which are combined together to perform the task of source characterization and forecasting. These components include Uncertainty Quantification, Optimal Information Collection, and Data Assimilation. Precise approximation of prior statistics is crucial to ensure performance of the source characterization process. In this work, an efficient quadrature based method has been utilized for quantification of uncertainty in plume dispersion models that are subject to uncertain source parameters. In addition, a fast and accurate approach is utilized for the approximation of probabilistic hazard maps, based on combination of polynomial chaos theory and the method of quadrature points. Besides precise quantification of uncertainty, having useful measurement data is also highly important to warranty accurate source parameter estimation. The performance of source characterization is highly affected by applied sensor orientation for data observation. Hence, a general framework has been developed for the optimal allocation of data observation sensors, to improve performance of the source characterization process. The key goal of this framework is to optimally locate a set of mobile sensors such that measurement of textit{better} data is guaranteed. This is achieved by maximizing the mutual information between model predictions

  12. The legacy of Cf-252 operations at Savannah River Technology Center: Continuous releases of radioiodine to the atmosphere

    International Nuclear Information System (INIS)

    The iodine isotopes I-132, 1-133, I-134, and I-135, which have half-lives ranging from 53 minutes to 21 hours, are measured in the atmospheric effluent from the Savannah River Technology Center (SRTC) at the Savannah River Site (SRS) near Aiken, South Carolina. SRS is operated by Westinghouse Savannah River Company for the US Department of Energy (DOE). The isotopes' release rates range from 10 to 300 microcuries per week compared to the rate. The resulting annual dose from all iodine isotopes is minor; it comprises 0.01 percent of the total offsite dose due to atmospheric releases from SRS in 1990. Circumstantial evidence indicates the radioiodine originates from traces of unencapsulated Cf-252. The determination that spontaneous fission of Cf-252 is the source of the radioiodine has several ramifications. Radioactive fission-product isotopes of the noble gas elements krypton and xenon must also be released. Noble gases are more volatile and mobile than iodine. Also, the released iodine isotopes decay to xenon isotopes. The noble gases decay to non-gaseous elements that are transported along with radioiodine to the terrestrial environment by deposition from the SRTC plume. Only Sr-89 is believed to accumulate sufficiently in the environment to approach detectable levels. Given similar conditions in earlier years, releases of short-lived radioiodine have occurred undetected in routine monitoring since the early 1970s. Release rates 20 years ago would have been 200 times greater than current release rates. This report documents preliminary experiments conducted by SRTC and Environmental Monitoring Section (EMS) scientists. The release process and the environmental impact of fission products from Cf-252 should be thoroughly researched

  13. Accidental benzene release risk assessment in an urban area using an atmospheric dispersion model

    Science.gov (United States)

    Truong, Son C. H.; Lee, Myong-In; Kim, Ganghan; Kim, Dongmin; Park, Jong-Hwa; Choi, Sung-Deuk; Cho, Gi-Hyoug

    2016-11-01

    This study applied the American Meteorological Society and Environmental Protection Agency Regulatory Model (AERMOD) to assess the risk caused by an accidental release and dispersion of the toxic chemical benzene in the vicinity of a highly populated urban area. The modeling domain encompasses the Korean megacity of Ulsan, which includes two national industrial complexes and is characterized by a complex coastal terrain. Multiple AERMOD simulations were conducted for an assumed emission scenario using background wind data from August between 2009 and 2013. The series of experiments produced the spatial accident probability patterns for different concentration levels during daytime and nighttime scenarios based on the corresponding dominant wind patterns. This study further quantifies the potential accident risk based on the number of affected individuals by combining the accident probability with the indoor and outdoor population estimates. The chemical gas dispersion characteristics depend on various local meteorological conditions, such as the land-sea breeze direction, which alternates between daytime and nighttime, and the atmospheric stability. The results reveal that benzene dispersion affects a much larger area during the nighttime owing to the presence of a nocturnal stable boundary layer with significant temperature stratification. The affected area is smaller during the daytime owing to decreased stability and enhanced vertical mixing in the boundary layer. The results include a high degree of uncertainty during the nighttime owing to weak wind speeds and the lack of a prevailing wind direction, which impact the vulnerable area. However, vulnerable areas are more effectively identified during the daytime, when more consistent meteorological conditions exist. However, the potential risk becomes much lower during the nighttime owing to a substantial reduction of the outdoor population.

  14. 78 FR 23540 - General Advisory Committee and Scientific Advisory Subcommittee to the U.S. Section to the Inter...

    Science.gov (United States)

    2013-04-19

    ... National Oceanic and Atmospheric Administration RIN 0648-XC613 General Advisory Committee and Scientific Advisory Subcommittee to the U.S. Section to the Inter-American Tropical Tuna Commission; Meeting... Scientific Advisory Subcommittee (SAS) and the General Advisory Committee (GAC) to the U.S. Section to...

  15. Characteristic of coal combustion in oxygen/carbon dioxide atmosphere and nitric oxide release during this process

    International Nuclear Information System (INIS)

    Combustion characteristic of a bituminous coal and an anthracite coal in oxygen/carbon dioxide (O2/CO2) atmosphere is investigated in a thermogravimetric (TG) analyzer. The characteristic parameters, which are deduced from the TG-DTG (differential thermogravimetric) curves, show that the coal combustion process is basically kept consistent in O2/CO2 and O2/N2 atmosphere at the O2 concentration of 20%. The Coats-Redfern method with the reaction order of 1.25 could perfectly describe the combustion process in these two different atmospheres through the calculation of the kinetic parameters for the two coals. Nitric oxide (NO) release is concentrated in a narrower time period in O2/CO2 atmosphere compared with the one in O2/N2 atmosphere during the coal combustion process. Though the high value of the NO release rate peak, the total conversion of the fuel-N to NO is strongly depressed in O2/CO2 atmosphere, and at 1473 K, the conversion is reduced by 28.99% for the bituminous coal and 22.54% for the anthracite coal, respectively. When O2 concentration is increased from 20% to 40% in O2/CO2 atmosphere, the coal combustion property is obviously improved with the shift of the whole process into the lower temperature zone and the more intensive of the reaction occurrence in a narrower temperature range. However, the total fuel-N to NO conversion is increased accordingly. For bituminous coal the increase is 17.22% at 1073 K and 20.51% at 1173 K, and for anthracite coal the increase is 15.73% at 1073 K and 16.19% at 1173 K.

  16. Atmospheric stability effects on potential radiological releases at a nuclear research facility in Romania: Characterising the atmospheric mixing state.

    Science.gov (United States)

    Chambers, Scott D; Galeriu, Dan; Williams, Alastair G; Melintescu, Anca; Griffiths, Alan D; Crawford, Jagoda; Dyer, Leisa; Duma, Marin; Zorila, Bogdan

    2016-04-01

    A radon-based nocturnal stability classification scheme is developed for a flat inland site near Bucharest, Romania, characterised by significant local surface roughness heterogeneity, and compared with traditional meteorologically-based techniques. Eight months of hourly meteorological and atmospheric radon observations from a 60 m tower at the IFIN-HH nuclear research facility are analysed. Heterogeneous surface roughness conditions in the 1 km radius exclusion zone around the site hinder accurate characterisation of nocturnal atmospheric mixing conditions using conventional meteorological techniques, so a radon-based scheme is trialled. When the nocturnal boundary layer is very stable, the Pasquill-Gifford "radiation" scheme overestimates the atmosphere's capacity to dilute pollutants with near-surface sources (such as tritiated water vapour) by 20% compared to the radon-based scheme. Under these conditions, near-surface wind speeds drop well below 1 m s(-1) and nocturnal mixing depths vary from ∼ 25 m to less than 10 m above ground level (a.g.l.). Combining nocturnal radon with daytime ceilometer data, we were able to reconstruct the full diurnal cycle of mixing depths. Average daytime mixing depths at this flat inland site range from 1200 to 1800 m a.g.l. in summer, and 500-900 m a.g.l. in winter. Using tower observations to constrain the nocturnal radon-derived effective mixing depth, we were able to estimate the seasonal range in the Bucharest regional radon flux as: 12 mBq m(-2) s(-1) in winter to 14 mBq m(-2) s(-1) in summer. PMID:26854556

  17. Disclosure of the National Data Centre Preparedness Exercise 2013 radionuclide release and atmospheric dispersion scenario

    Science.gov (United States)

    Ross, J. Ole; Hartmann, Gernot; Ceranna, Lars; Gestermann, Nicolai

    2015-04-01

    justified. Various pieces of Supplementary Information were offered in order to facilitate a broad participation of NDCs. Finally, the full NPE2013 scenario was disclosed at the NDC Workshop in Vienna in May 2014. The radionuclide source scenario and location as well as the forward Atmospheric Transport Modelling (ATM) to generate the simulated concentrations are presented. The specific challenges of the localization of the fictitious radionuclide source by means of ATM backtracking and isotopic composition analysis are pointed out. The underlying scenario of NPE2013 was a false-positive: The induced seismic event in FRISIA was completely unrelated to the simulated reactor release at 600 km distance in a neighbouring country. The NPE2013 addressed thus a number of relevant issues which have to be considered when dealing with data of the International Monitoring System and of additional national technical means in the pre-run of a request for an On-Site Inspection.

  18. Extensive release of methane from Arctic seabed west of Svalbard during summer 2014 does not influence the atmosphere

    Science.gov (United States)

    Myhre, C. Lund; Ferré, B.; Platt, S. M.; Silyakova, A.; Hermansen, O.; Allen, G.; Pisso, I.; Schmidbauer, N.; Stohl, A.; Pitt, J.; Jansson, P.; Greinert, J.; Percival, C.; Fjaeraa, A. M.; O'Shea, S. J.; Gallagher, M.; Le Breton, M.; Bower, K. N.; Bauguitte, S. J. B.; Dalsøren, S.; Vadakkepuliyambatta, S.; Fisher, R. E.; Nisbet, E. G.; Lowry, D.; Myhre, G.; Pyle, J. A.; Cain, M.; Mienert, J.

    2016-05-01

    We find that summer methane (CH4) release from seabed sediments west of Svalbard substantially increases CH4 concentrations in the ocean but has limited influence on the atmospheric CH4 levels. Our conclusion stems from complementary measurements at the seafloor, in the ocean, and in the atmosphere from land-based, ship and aircraft platforms during a summer campaign in 2014. We detected high concentrations of dissolved CH4 in the ocean above the seafloor with a sharp decrease above the pycnocline. Model approaches taking potential CH4 emissions from both dissolved and bubble-released CH4 from a larger region into account reveal a maximum flux compatible with the observed atmospheric CH4 mixing ratios of 2.4-3.8 nmol m-2 s-1. This is too low to have an impact on the atmospheric summer CH4 budget in the year 2014. Long-term ocean observatories may shed light on the complex variations of Arctic CH4 cycles throughout the year.

  19. KZBW Center Weather Advisory (CWA)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The CWA is an aviation weather warning for conditions meeting or approaching national in-flight advisory (AIRMET, SIGMET or SIGMET for convection) criteria. CWAs...

  20. Radionuclide releases to the atmosphere from Hanford Operations, 1944--1972

    International Nuclear Information System (INIS)

    The purpose of the Hanford Environmental Dose Reconstruction Project is to estimate the radiation dose that individuals could have received as a result of radionuclide emissions since 1944 from the Hanford Site. The first step in determining dose is to estimate the amount and timing of radionuclide releases to air and water. This report provides the air release information

  1. A Multi-Entity Field Approximation to determine the source location of multiple atmospheric contaminant releases

    Science.gov (United States)

    Annunzio, Andrew J.; Young, George S.; Haupt, Sue Ellen

    2012-12-01

    In the event of an accidental or intentional contaminant release, it is imperative to locate the source of the contaminant for use in hazard prediction models. In some situations more than a single contaminant release will be present, which becomes a complicating factor when contaminants from these releases significantly overlap. Here we present a Lagrangian approach to determine the source locations of multiple contaminant releases. For this approach, we assume that the concentration field is approximated by a superposition of contaminant entities, where an entity is a discrete object; namely a puff for an instantaneous release and a plume for a continuous release. The state of each entity is inferred from surface observations of the contaminant, and extrapolation of each entity's state provides an estimate of the contaminant source locations. We call this method a Multi-Entity Field Approximation (MEFA) because together the entities' concentration fields sum to approximate the observed concentration field. In this work, we outline the MEFA process for both instantaneous and continuous contaminant releases using data from two FUSION Field Trial 2007 (FFT07) Trials where contaminant fields from multiple contaminant releases overlap close to the source location.

  2. Xenon-133 and caesium-137 releases into the atmosphere from the Fukushima Dai-ichi nuclear power plant: determination of the source term, atmospheric dispersion, and deposition

    Directory of Open Access Journals (Sweden)

    A. Stohl

    2011-10-01

    Full Text Available On 11 March 2011, an earthquake occurred about 130 km off the Pacific coast of Japan's main island Honshu, followed by a large tsunami. The resulting loss of electric power at the Fukushima Dai-ichi nuclear power plant (FD-NPP developed into a disaster causing massive release of radioactivity into the atmosphere. In this study, we determine the emissions of two isotopes, the noble gas xenon-133 (133Xe and the aerosol-bound caesium-137 (137Cs, which have very different release characteristics as well as behavior in the atmosphere. To determine radionuclide emissions as a function of height and time until 20 April, we made a first guess of release rates based on fuel inventories and documented accident events at the site. This first guess was subsequently improved by inverse modeling, which combined the first guess with the results of an atmospheric transport model, FLEXPART, and measurement data from several dozen stations in Japan, North America and other regions. We used both atmospheric activity concentration measurements as well as, for 137Cs, measurements of bulk deposition. Regarding 133Xe, we find a total release of 16.7 (uncertainty range 13.4–20.0 EBq, which is the largest radioactive noble gas release in history not associated with nuclear bomb testing. There is strong evidence that the first strong 133Xe release started very early, possibly immediately after the earthquake and the emergency shutdown on 11 March at 06:00 UTC. The entire noble gas inventory of reactor units 1–3 was set free into the atmosphere between 11 and 15 March 2011. For 137Cs, the inversion results give a total emission of 35.8 (23.3–50.1 PBq, or about 42% of the estimated Chernobyl emission. Our results indicate that 137Cs emissions peaked on 14–15 March but were generally high from 12 until 19 March, when they suddenly dropped by orders of magnitude exactly when spraying of

  3. 76 FR 22395 - Federal Advisory Committee Act; Open Internet Advisory Committee

    Science.gov (United States)

    2011-04-21

    ... Internet rules (available at http://www.fcc.gov/Daily_Releases/Daily_Business/2010/db1223/FCC-10-201A1.pdf... COMMISSION Federal Advisory Committee Act; Open Internet Advisory Committee AGENCY: Federal Communications... ``Open Internet Advisory Committee'' (hereinafter ``the Committee''), is being established. FOR...

  4. Methodology for prediction and estimation of consequences of possible atmospheric releases of hazardous matter: 'Kursk' submarine study

    Directory of Open Access Journals (Sweden)

    A. Baklanov

    2003-01-01

    Full Text Available There are objects with some periods of higher than normal levels of risk of accidental atmospheric releases (nuclear, chemical, biological, etc.. Such accidents or events may occur due to natural hazards, human errors, terror acts, and during transportation of waste or various operations at high risk. A methodology for risk assessment is suggested and it includes two approaches: 1 probabilistic analysis of possible atmospheric transport patterns using long-term trajectory and dispersion modelling, and 2 forecast and evaluation of possible contamination and consequences for the environment and population using operational dispersion modelling. The first approach could be applied during the preparation stage, and the second - during the operation stage. The suggested methodology is applied on an example of the most important phases (lifting, transportation, and decommissioning of the ``Kursk" nuclear submarine operation. It is found that the temporal variability of several probabilistic indicators (fast transport probability fields, maximum reaching distance, maximum possible impact zone, and average integral concentration of 137Cs showed that the fall of 2001 was the most appropriate time for the beginning of the operation. These indicators allowed to identify the hypothetically impacted geographical regions and territories. In cases of atmospheric transport toward the most populated areas, the forecasts of possible consequences during phases of the high and medium potential risk levels based on a unit hypothetical release (e.g. 1 Bq are performed. The analysis showed that the possible deposition fractions of 10-11 (Bq/m2 over the Kola Peninsula, and 10-12 - 10-13 (Bq/m2 for the remote areas of the Scandinavia and Northwest Russia could be observed. The suggested methodology may be used successfully for any potentially dangerous object involving risk of atmospheric release of hazardous materials of nuclear, chemical or biological nature.

  5. Ruthenium release modelling in air and steam atmospheres under severe accident conditions using the MAAP4 code

    International Nuclear Information System (INIS)

    Highlights: ► We developed a new modelling of fuel oxidation and ruthenium release in the EDF version of the MAAP4 code. ► We validated this model against some VERCORS experiments. ► Ruthenium release prediction quantitatively and qualitatively well reproduced under air and steam atmospheres. - Abstract: In a nuclear power plant (NPP), a severe accident is a low probability sequence that can lead to core fusion and fission product (FP) release to the environment (source term). For instance during a loss-of-coolant accident, water vaporization and core uncovery can occur due to decay heat. These phenomena enhance core degradation and, subsequently, molten materials can relocate to the lower head of the vessel. Heat exchange between the debris and the vessel may cause its rupture and air ingress. After lower head failure, steam and air entering in the vessel can lead to degradation and oxidation of materials that are still intact in the core. Indeed, Zircaloy-4 cladding oxidation is very exothermic and fuel interaction with the cladding material can decrease its melting temperature by several hundred of Kelvin. FP release can thus be increased, noticeably that of ruthenium under oxidizing conditions. Ruthenium is of particular interest because of its high radio-toxicity due to 103Ru and 106Ru isotopes and its ability to form highly volatile compounds, even at room temperature, such as gaseous ruthenium tetra-oxide (RuO4). It is consequently of great need to understand phenomena governing steam and air oxidation of the fuel and ruthenium release as prerequisites for the source term issues. A review of existing data on these phenomena shows relatively good understanding. In terms of oxygen affinity, the fuel is oxidized before ruthenium, from UO2 to UO2+x. Its oxidation is a rate-controlling surface exchange reaction with the atmosphere, so that the stoichiometric deviation and oxygen partial pressure increase. High temperatures combined with the presence of

  6. Atmospheric PM and volatile organic compounds released from Mediterranean shrubland wildfires

    OpenAIRE

    García Hurtado, Elisa; Pey, Jorge; Borrás, Esther; Sánchez, Pilar; Vera, Teresa; Carratalá, Adoración; Alastuey, Andrés; Querol, Xavier; Vallejo, V. Ramón

    2014-01-01

    Wildfires produce a significant release of gases and particles affecting climate and air quality. In the Mediterranean region, shrublands significantly contribute to burned areas and may show specific emission profiles. Our objective was to depict and quantify the primary-derived aerosols and precursors of secondary particulate species released during shrubland experimental fires, in which fire-line intensity values were equivalent to those of moderate shrubland wildfires, by using a number o...

  7. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 3. Routine Releases, 1973 - 2005

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S

    2007-08-15

    Annual mean concentrations of tritium in air moisture, calculated from data obtained from an air tritium sampler near the LLNL Discovery Center, were compared with annual mean air moisture concentrations predicted from atmospheric releases of tritium for the years 1973 through 2005. The 95% confidence intervals on the predictions and observations usually overlapped. When the distributions of predictions and observations were different, predictions were higher. Using both the observed and predicted air concentrations as input to the tritium dose model, DCART, annual doses to a hypothetical adult, child (age 10) and infant (age 6 months to 1 year) assumed to be living at LLNL's Discovery Center were calculated. Although the doses based on predicted air concentrations tended to be higher, they were nevertheless indistinguishable from doses based on observed air concentrations when uncertainties were taken into account. Annual doses, calculated by DCART and based on observed and predicted air concentrations, were compared with historical tritium doses reported annually by LLNL. Although the historical doses were calculated using various assumptions over the years, their agreement with the DCART predictions is remarkable. The Discovery Center was not the location of the site-wide maximally exposed individual (SWMEI) from 1974 through 1978. However, doses at the location of the SW-MEI for those years were indistinguishable from those at the Discovery Center when uncertainties were taken into account. The upper confidence limits for all doses were always well below the current regulatory limit for dose to a member of the public (100 {micro}Sv or 10 mrem per year) from atmospheric releases (40 CFR Part 61, Subpart H). Based on observed air concentrations, the 97.5% confidence limit on the cumulative dose to the hypothetical person born in 1973 and living through 2005 at the Discovery Center was 150 {micro}Sv (15 mrem), while that of the hypothetical adult who spent

  8. Release and dispersion of vegetation and peat fire emissions in the atmosphere over Indonesia 1997/1998

    Directory of Open Access Journals (Sweden)

    B. Langmann

    2004-01-01

    Full Text Available Smoke-haze episodes caused by vegetation and peat fires affect parts of Indonesia every year with significant impacts on human health and climate. Particularly fires in degenerated peat areas release huge amounts of trace gases, e.g. CO2, CO and CH4, and particles into the atmosphere, exceeding by far the emissions per unit area from fires in surface vegetation. However, only limited information is available about the current distribution of pristine and degenerated peat areas in Indonesia, their depth, drainage condition and modification by fire. Particularly during the strong El Niño event in 1997/1998 a huge uncertainty exists about the contribution of Indonesian peat fire emissions to the measured increase of atmospheric CO2, as the published estimates of the peat area burned differ considerably. In this paper we study the contribution of peat fire emissions in Indonesia during the El Niño event 1997/1998. A regional three-dimensional atmosphere-chemistry model is applied over Indonesia using two emission estimates. These vegetation and peat fire emission inventories for Indonesia are set up in 0.5° resolution in weekly intervals and differ only in the size of the fire affected peat areas. We evaluate simulated rainfall and particle concentrations by comparison with observations to draw conclusions on the total carbon emissions released from the vegetation and peat fires in Indonesia in 1997/1998.

  9. Release and dispersion of vegetation and peat fire emissions in the atmosphere over Indonesia 1997/1998

    Science.gov (United States)

    Langmann, B.; Heil, A.

    2004-11-01

    Smoke-haze episodes caused by vegetation and peat fires affect parts of Indonesia every year with significant impacts on human health and climate. Particularly fires in degenerated peat areas release huge amounts of trace gases, e.g. CO2, CO and CH4, and particles into the atmosphere, exceeding by far the emissions per unit area from fires in surface vegetation. However, only limited information is available about the current distribution of pristine and degenerated peat areas in Indonesia, their depth, drainage condition and modification by fire. Particularly during the strong El Niño event in 1997/1998 a huge uncertainty exists about the contribution of Indonesian peat fire emissions to the measured increase of atmospheric CO2, as the published estimates of the peat area burned differ considerably. In this paper we study the contribution of peat fire emissions in Indonesia during the El Niño event 1997/1998. A regional three-dimensional atmosphere-chemistry model is applied over Indonesia using two emission estimates. These vegetation and peat fire emission inventories for Indonesia are set up in 0.5° resolution in weekly intervals and differ only in the size of the fire affected peat areas. We evaluate simulated rainfall and particle concentrations by comparison with observations to draw conclusions on the total carbon emissions released from the vegetation and peat fires in Indonesia in 1997/1998.

  10. Detailed source term estimation of atmospheric release during the Fukushima Dai-ichi nuclear power plant accident by coupling atmospheric and oceanic dispersion models

    Science.gov (United States)

    Katata, Genki; Chino, Masamichi; Terada, Hiroaki; Kobayashi, Takuya; Ota, Masakazu; Nagai, Haruyasu; Kajino, Mizuo

    2014-05-01

    Temporal variations of release amounts of radionuclides during the Fukushima Dai-ichi Nuclear Power Plant (FNPP1) accident and their dispersion process are essential to evaluate the environmental impacts and resultant radiological doses to the public. Here, we estimated a detailed time trend of atmospheric releases during the accident by combining environmental monitoring data and coupling atmospheric and oceanic dispersion simulations by WSPEEDI-II (Worldwide version of System for Prediction of Environmental Emergency Dose Information) and SEA-GEARN developed by the authors. New schemes for wet, dry, and fog depositions of radioactive iodine gas (I2 and CH3I) and other particles (I-131, Te-132, Cs-137, and Cs-134) were incorporated into WSPEEDI-II. The deposition calculated by WSPEEDI-II was used as input data of ocean dispersion calculations by SEA-GEARN. The reverse estimation method based on the simulation by both models assuming unit release rate (1 Bq h-1) was adopted to estimate the source term at the FNPP1 using air dose rate, and air sea surface concentrations. The results suggested that the major release of radionuclides from the FNPP1 occurred in the following periods during March 2011: afternoon on the 12th when the venting and hydrogen explosion occurred at Unit 1, morning on the 13th after the venting event at Unit 3, midnight on the 14th when several openings of SRV (steam relief valve) were conducted at Unit 2, morning and night on the 15th, and morning on the 16th. The modified WSPEEDI-II using the newly estimated source term well reproduced local and regional patterns of air dose rate and surface deposition of I-131 and Cs-137 obtained by airborne observations. Our dispersion simulations also revealed that the highest radioactive contamination areas around FNPP1 were created from 15th to 16th March by complicated interactions among rainfall (wet deposition), plume movements, and phase properties (gas or particle) of I-131 and release rates

  11. Xenon-133 and caesium-137 releases into the atmosphere from the Fukushima Dai-ichi nuclear power plant: determination of the source term, atmospheric dispersion, and deposition

    Directory of Open Access Journals (Sweden)

    A. Stohl

    2012-03-01

    Full Text Available On 11 March 2011, an earthquake occurred about 130 km off the Pacific coast of Japan's main island Honshu, followed by a large tsunami. The resulting loss of electric power at the Fukushima Dai-ichi nuclear power plant developed into a disaster causing massive release of radioactivity into the atmosphere. In this study, we determine the emissions into the atmosphere of two isotopes, the noble gas xenon-133 (133Xe and the aerosol-bound caesium-137 (137Cs, which have very different release characteristics as well as behavior in the atmosphere. To determine radionuclide emissions as a function of height and time until 20 April, we made a first guess of release rates based on fuel inventories and documented accident events at the site. This first guess was subsequently improved by inverse modeling, which combined it with the results of an atmospheric transport model, FLEXPART, and measurement data from several dozen stations in Japan, North America and other regions. We used both atmospheric activity concentration measurements as well as, for 137Cs, measurements of bulk deposition. Regarding 133Xe, we find a total release of 15.3 (uncertainty range 12.2–18.3 EBq, which is more than twice as high as the total release from Chernobyl and likely the largest radioactive noble gas release in history. The entire noble gas inventory of reactor units 1–3 was set free into the atmosphere between 11 and 15 March 2011. In fact, our release estimate is higher than the entire estimated 133Xe inventory of the Fukushima Dai-ichi nuclear power plant, which we explain with the decay of iodine-133 (half-life of 20.8 h into 133Xe. There is strong evidence that the 133Xe release started before the first active venting was made, possibly indicating structural damage to reactor components and/or leaks due to overpressure which would have allowed early release of noble gases. For 137

  12. Development of three-dimensional trajectory model for detecting source region of the radioactive materials released into the atmosphere

    Energy Technology Data Exchange (ETDEWEB)

    Suh, Kyung Suk; Park, Ki Hyun; Min, Byung Il; Kim, Sora; Yang, Byung Mo [Nuclear Environmental Safety Research Division, Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2016-05-15

    It is necessary to consider the overall countermeasure for analysis of nuclear activities according to the increase of the nuclear facilities like nuclear power and reprocessing plants in the neighboring countries including China, Taiwan, North Korea, Japan and South Korea. South Korea and comprehensive nuclear-test-ban treaty organization (CTBTO) are now operating the monitoring instruments to detect radionuclides released into the air. It is important to estimate the origin of radionuclides measured using the detection technology as well as the monitoring analysis in aspects of investigation and security of the nuclear activities in neighboring countries. A three-dimensional forward/backward trajectory model has been developed to estimate the origin of radionuclides for a covert nuclear activity. The developed trajectory model was composed of forward and backward modules to track the particle positions using finite difference method. A three-dimensional trajectory model was validated using the measured data at Chernobyl accident. The calculated results showed a good agreement by using the high concentration measurements and the locations where was near a release point. The three-dimensional trajectory model had some uncertainty according to the release time, release height and time interval of the trajectory at each release points. An atmospheric dispersion model called long-range accident dose assessment system (LADAS), based on the fields of regards (FOR) technique, was applied to reduce the uncertainties of the trajectory model and to improve the detective technology for estimating the radioisotopes emission area. The detective technology developed in this study can evaluate in release area and origin for covert nuclear activities based on measured radioisotopes at monitoring stations, and it might play critical tool to improve the ability of the nuclear safety field.

  13. Development of a model of atmospheric oxygen variations to estimate terrestrial carbon storage and release

    Science.gov (United States)

    Najjar, Raymond G.; Keeling, Ralph F.; Erickson, David J., III

    1995-01-01

    Two years of work has been completed towards the development of a model of atmospheric oxygen variations on seasonal to decadal timescales. During the first year we (1) constructed a preliminary monthly-mean climatology of surface ocean oxygen anomalies, (2) began modeling studies to assess the importance of short term variability on the monthly-mean oxygen flux, and (3) conducted preliminary simulations of the annual mean cycle of oxygen in the atmosphere. Most of the second year was devoted to improving the monthly mean climatology of oxygen in the surface ocean.

  14. Evaluation of food contamination and health risks caused by radioactive fallout released from atmospheric nuclear detonation tests

    International Nuclear Information System (INIS)

    Before Fukushima Daiichi nuclear disaster, radionuclide like 137Cs released from atmospheric nuclear detonation tests and Chernobyl disaster has been transported worldwide in the environment and finally taken up by humans through various pathways. In this research, dietary intake of 137Cs and the related health risks to Japanese caused by chronic global radioactive food contamination from 1945 to 2010 were evaluated by using the mathematical model for the evaluation of global distribution of 137Cs with food ingestion and domestic and international food supply model. The results of this evaluation can show a background situation before Fukushima disaster and give important information for the risk assessment of this disaster. (author)

  15. AXAIR: A Computer Code for SAR Assessment of Plume-Exposure Doses from Potential Process-Accident Releases to Atmosphere

    Energy Technology Data Exchange (ETDEWEB)

    Pillinger, W.L.

    2001-05-17

    This report describes the AXAIR computer code which is available to terminal users for evaluating the doses to man from exposure to the atmospheric plume from postulated stack or building-vent releases at the Savannah River Plant. The emphasis herein is on documentation of the methodology only. The total-body doses evaluated are those that would be exceeded only 0.5 percent of the time based on worst-sector, worst-case meteorological probability analysis. The associated doses to other body organs are given in the dose breakdowns by radionuclide, body organ and pathway.

  16. Oxidation of siloxanes during biogas combustion and nanotoxicity of Si-based particles released to the atmosphere.

    Science.gov (United States)

    Tansel, Berrin; Surita, Sharon C

    2014-01-01

    Siloxanes have been detected in the biogas produced at municipal solid waste landfills and wastewater treatment plants. When oxidized, siloxanes are converted to silicon oxides. The objectives of this study were to evaluate the transformation of siloxanes and potential nanotoxicity of Si-based particles released to the atmosphere from the gas engines which utilize biogas. Data available from nanotoxicity studies were used to assess the potential health risks associated with the inhalation exposure to Si-based nanoparticles. Silicon dioxide formed from siloxanes can range from 5 nm to about 100 nm in diameter depending on the combustion temperature and particle clustering characteristics. In general, silicon dioxide particles formed during from combustion process are typically 40-70 nm in diameter and can be described as fibrous dusts and as carcinogenic, mutagenic, astmagenic or reproductive toxic (CMAR) nanoparticles. Nanoparticles deposit in the upper respiratory system, conducting airways, and the alveoli. Size ranges between 5 and 50 nm show effective deposition in the alveoli where toxic effects are higher. In this study the quantities for the SiO₂ formed and release during combustion of biogas were estimated based on biogas utilization characteristics (gas compositions, temperature). The exposure to Si-based particles and potential effects in humans were analyzed in relation to their particle size, release rates and availability in the atmosphere. The analyses showed that about 54.5 and 73 kg/yr of SiO₂ can be released during combustion of biogas containing D4 and D5 at 14.1 mg/m(3) (1 ppm) and 15.1 mg/m(3) (1ppm), respectively, per MW energy yield.

  17. A lidar technique to quantify surface deposition from atmospheric releases of bulk liquids

    Science.gov (United States)

    Post, Madison J.; Glaes, Thomas; Matta, Joseph; Sommerville, Douglas; Einfeld, Wayne

    We show that a scanning, pulsed lidar can be used to quantify the time history and areal concentration of mass deposited on the ground from an elevated release of bulk liquid. Aircraft measurements, witness car depositions and evaporative modelling crudely support results from analysed lidar data.

  18. Atmospheric Rawinsonde and Pigeon Release Data Implicate Infrasound as the Long- Range Map Cue in Avian Navigation

    Science.gov (United States)

    Hagstrum, J. T.

    2007-12-01

    Pigeons ( Columba livia) and other birds released from distant familiar and unfamiliar sites generally head in the homeward (loft) direction, but often vanish from view or radio contact consistently off the exact homeward bearing. At some sites the deviation can be a significant and stable amount, while at other sites birds can appear to become completely lost and depart in random directions. These deviations or biases can change from hour to hour, day to day, and year to year, but have not, over the last ~50 years of intensive research, been related to any atmospheric factor. They are, however, still considered to reflect significant irregularities in the pigeons' "map" function. Celestial and geomagnetic "compasses" have been shown to orient avian flight, but how pigeons determine their location in order to select the correct homeward bearing remains controversial. At present the debate is primarily between workers advocating an olfactory "map" and those advocating variations in the direction and intensity of the geomagnetic field as map functions. Alternatively, infrasonic cues can travel 1000s of km in the atmosphere with little attenuation, and can be detected in the laboratory by pigeons at frequencies down to 0.05 Hz. Although infrasound has been considered as a navigational tool for homing and migratory birds, little supporting evidence of its use has been found. Infrasonic ray paths in the atmosphere are controlled primarily by temperature and secondarily by wind. Assuming birds use infrasonic cues, atmospheric conditions could cause the perplexing changes (both geographic and temporal) observed in the mean vanishing bearings (MVBs) of pigeons released from experimental sites. To test for correlations between MVBs and tropospheric conditions, release data collected by the late W.T. Keeton between 1968 and 1980 from around the Cornell University lofts in upstate NY are compared to rawinsonde data from stations near Buffalo and Albany. For example, birds

  19. Screening models for releases of radionuclides to atmosphere, surface water, and ground

    International Nuclear Information System (INIS)

    This Report is intended to meet the need identified in the National Council on Radiation Protection and Measurements'(NCRP) Report No. 76, Radiological Assessment: Predicting the Transport, Bioaccumulation, and Uptake by Man of Radionuclides Released to the Environment, for simple, authoritative, screening techniques to address releases of radioactive materials to the environment. ''Screening models,'' as originally envisioned and documented in NCRP Report No. 76, are defined as models requiring a few simple multiplicative calculations and a minimum of site-specific data and decisions by the user. This technique can be used to demonstrate compliance with environmental dose limits or other administratively-set reference levels. Screening models consolidate many steps in environmental transport and dosimetry, and apply assumptions and model parameters that attempt to deliberately overestimate the dose to people. Thus, if compliance can be demonstrated with these techniques, it is generally understood that no further complex calculations are needed

  20. Determination of radiation doses caused by release into the atmosphere by nuclear power plants, based on measurement of emission and immission

    International Nuclear Information System (INIS)

    The radiation impact of nuclear facilities, and the nuclear power plants as well, can be determined by using two methods. The first one calculates the dose of critical group of population based on the release, meteorological and hydrological parameters. The second method gives an estimate of the additional dose caused by the nuclear facility from the radiological measurements in the environment. This article compares this two methods for the release in the atmosphere, and gives an estimate of the relative error. The comparison can be applied for cases when the atmospheric pollution is released from a point type source, so for the conventional power plants as well. (author)

  1. Integrated Codes for Estimating Environmental Accumulation and Individual Dose from Past Hanford Atmospheric Releases: Hanford Environmental Dose Reconstruction Project

    Energy Technology Data Exchange (ETDEWEB)

    Ikenberry, T. A.; Burnett, R. A.; Napier, B. A.; Reitz, N. A.; Shipler, D. B.

    1992-02-01

    Preliminary radiation doses were estimated and reported during Phase I of the Hanford Environmental Dose Reconstruction (HEDR) Project. As the project has progressed, additional information regarding the magnitude and timing of past radioactive releases has been developed, and the general scope of the required calculations has been enhanced. The overall HEDR computational model for computing doses attributable to atmospheric releases from Hanford Site operations is called HEDRIC (Hanford Environmental Dose Reconstruction Integrated Codes). It consists of four interrelated models: source term, atmospheric transport, environmental accumulation, and individual dose. The source term and atmospheric transport models are documented elsewhere. This report describes the initial implementation of the design specifications for the environmental accumulation model and computer code, called DESCARTES (Dynamic EStimates of Concentrations and Accumulated Radionuclides in Terrestrial Environments), and the individual dose model and computer code, called CIDER (Calculation of Individual Doses from Environmental Radionuclides). The computations required of these models and the design specifications for their codes were documented in Napier et al. (1992). Revisions to the original specifications and the basis for modeling decisions are explained. This report is not the final code documentation but gives the status of the model and code development to date. Final code documentation is scheduled to be completed in FY 1994 following additional code upgrades and refinements. The user's guide included in this report describes the operation of the environmental accumulation and individual dose codes and associated pre- and post-processor programs. A programmer's guide describes the logical structure of the programs and their input and output files.

  2. Atmospheric PM and volatile organic compounds released from Mediterranean shrubland wildfires

    Science.gov (United States)

    Garcia-Hurtado, Elisa; Pey, Jorge; Borrás, Esther; Sánchez, Pilar; Vera, Teresa; Carratalá, Adoración; Alastuey, Andrés; Querol, Xavier; Vallejo, V. Ramon

    2014-06-01

    Wildfires produce a significant release of gases and particles affecting climate and air quality. In the Mediterranean region, shrublands significantly contribute to burned areas and may show specific emission profiles. Our objective was to depict and quantify the primary-derived aerosols and precursors of secondary particulate species released during shrubland experimental fires, in which fire-line intensity values were equivalent to those of moderate shrubland wildfires, by using a number of different methodologies for the characterization of organic and inorganic compounds in both gas-phase and particulate-phase. Emissions of PM mass, particle number concentrations and organic and inorganic PMx components during flaming and smouldering phases were characterized in a field shrubland fire experiment. Our results revealed a clear prevalence of K+ and SO42- as inorganic ions released during the flaming-smouldering processes, accounting for 68-80% of the inorganic soluble fraction. During the residual-smouldering phases, in addition to K+ and SO42-, Ca2+ was found in significant amounts probably due the predominance of re-suspension processes (ashes and soil dust) over other emission sources during this stage. Concerning organic markers, the chromatograms were dominated by phenols, n-alkanals and n-alkanones, as well as by alcohol biomarkers in all the PMx fractions investigated. Levoglucosan was the most abundant degradation compound with maximum emission factors between 182 and 261 mg kg-1 in PM2.5 and PM10 respectively. However, levoglucosan was also observed in significant amounts in the gas-phase. The most representative organic volatile constituents in the smoke samples were alcohols, carbonyls, acids, monocyclic and bicyclic arenes, isoprenoids and alkanes compounds. The emission factors obtained in this study may contribute to the validation and improvement of national and international emission inventories of this intricate and diffuse emission source.

  3. The Charged Aerosol Release Experiment (Care II) to Study Artificial Dusty Plasmas in the Upper Atmosphere

    Science.gov (United States)

    Bernhardt, P. A.; Siefring, C. L.; Gatling, G.; Briczinski, S. J., Jr.; Vierinen, J.; Bhatt, A.; Holzworth, R. H., II; McCarthy, M.; Gustavsson, B.; La Hoz, C.; Latteck, R.

    2015-12-01

    A sounding rocket launched from Andoya, Norway in September 2015 carried 37 rocket motors and a multi-instrument daughter payload into the ionosphere to study the generation of plasma wave electric fields and ionospheric density disturbances by the high-speed injection of dust particles. The primary purpose of the CARE II mission is to validate the dress-particle theory of enhanced incoherent scatter from a dusty plasma and to validate models of plasma instabilities driven by high-speed charged particles. The CARE II chemical payload produces 66 kg of micron-sized dust particles composed of aluminium oxide. In addition to the dust, simple molecular combustion products such as N2, H2, CO2, CO, H20 and NO will be injected into the bottomside of the F-layer. Charging of the dust and ion charge exchange with the molecules yields plasma particles moving at hypersonic velocities. Streaming instabilities and shear electric fields causes plasma turbulence that can be detected using ground radars and in situ plasma instruments. The instrument payload was separated from the chemical release payload soon after launch to measure electric field vectors, electron and ion densities, and integrated electron densities from the rocket to the ground. The chemical release of high speed dust was directed upward on the downleg of the rocket trajectory to intersect the F-Layer. The instrument section was about 600 meters from the dust injection module at the release time. Ground HF and UHF radars were operated to detected scatter and refraction by the modified ionosphere. Optical instruments from airborne and ground observatories were used to map the dispersal of the dust using scattered sunlight. The plasma interactions are being simulated with both fluid and particle-in-cell (PIC) codes. CARE II is a follow-on to the CARE I rocket experiment conducted from Wallops Island Virginia in September 2009.

  4. Radiological consequences of atmospheric releases from coal-fired power plants

    International Nuclear Information System (INIS)

    The report deals with the individual and collective doses resulting from radioactive materials contained in the stack releases of coal-fired power plants. A critical analysis of relevant calculations in literature is given. The different reports analyzed show a very wide range in calculated doses. To a great extent these differences may be explained by the wide range in the assumptions adopted. There is also disagreement on what exposure pathways are the most important, and what nuclides contribute most to calculated doses. A most probable value of 0.5 mrem/year for the maximum individual effective dose equivalent commitment, is indicated in the report

  5. Hydrogen Isotopic Composition of Water in the Martian Atmosphere and Released from Rocknest Fines

    Science.gov (United States)

    Leshin, L. A.; Webster, C. R.; Mahaffy, P. R.; Flesh, G. J.; Christensen, L. E.; Stern, J. C.; Franz, H. B.; McAdam, A. C.; Niles, P. B.; Archer, P. B., Jr.; Sutter, B.; Jones, J. H.; Ming, D. W.; Atreya, S. K.; Owen, T. C.; Conrad, P.

    2013-01-01

    The Mars Science Laboratory Curiosity rover sampled the aeolian bedform called Rocknest as its first solid samples to be analyzed by the analytical instruments CheMin and SAM. The instruments ingested aliquots from a sieved sample of less than 150 micrometer grains. As discussed in other reports at this conference [e.g., 1], CheMin discovered many crystalline phases, almost all of which are igneous minerals, plus some 10s of percent of x-ray amorphous material. The SAM instrument is focused on understanding volatiles and possible organics in the fines, performing evolved gas analysis (EGA) with the SAM quadrapole mass spectrometer (QMS), isotope measurements using both the QMS and the tunable laser spectrometer (TLS), which is sensitive to CO2, water and methane, and organics with the gas chromatograph mass spectrometer (GCMS). As discussed in the abstract by Franz et al. [2] and others, EGA of Rocknest fines revealed the presence of significant amounts of H2O as well as O-, C- and S-bearing materials. SAM has also tasted the martian atmosphere several times, analyzing the volatiles in both the TLS and QMS [e.g., 3,4]. This abstract will focus on presentation of initial hydrogen isotopic data from the TLS for Rocknest soils and the atmosphere, and their interpretation. Data for CO2 isotopes and O isotopes in water are still being reduced, but should be available by at the conference.

  6. OBT/HTO ratio in agricultural produce subject to routine atmospheric releases of tritium

    International Nuclear Information System (INIS)

    The mean expected value of the OBT/HTO ratio (i.e. generic ratio) is derived in this study on the joint basis of a long-term study conducted at Atomic Energy of Canada Limited (AECL)'s Chalk River Laboratories (CRL), model simulations targeted at filling gaps in a yet incomplete timeline of CRL measurements and a reference dataset comprised of numerous experiments reported in the literature. Cultivar variability and disparity in site-specific settings are covered by the reference dataset. Dynamical variability caused by meteorology has been a specific target of the long-term experimental campaign at CRL, where the former two types of variability were eliminated. The distribution of OBT/HTO ratios observed at CRL appears to be a fairly good match to the distribution of OBT/HTO ratios from the literature. This implies that dynamical variability appears important in both cases. Dynamics of atmospheric HTO at CRL is comprised of a sequence of episodes of atmospheric HTO uptake and re-emission of plant HTO. The OBT/HTO ratio appears sensitive to the proportion of the duration of these two episodes: the lesser the frequency (and duration) of plume arrivals, the higher the expected mean OBT/HTO ratio. With the plume arrival frequency defined by the typical wind rose, one would encounter a mean OBT/HTO ratio close to 2. It is important to note that this number is seen both in the reference dataset, and in the continuous timeline of HTO and OBT reconstructed from CRL observations by dynamical interpolation (modelling). Many datasets (including that of CRL) targeted at the OBT/HTO ratio are biased high compared to the suggested number. This could be explained by scarce measurements of the low OBT/HTO ratios in the short phase of uptake of atmospheric HTO by the plant. - Highlights: • Observed OBT/HTO is similarly distributed in reference dataset and CRL dataset. • Modeled OBT/HTO provided auxiliary data used in derivation of generic ratio. • Generic OBT/HTO ratio

  7. Models for the evaluation of ingestion doses from the consumption of terrestrial foods following an atmospheric radioactive release

    International Nuclear Information System (INIS)

    Various methods are described which have been incorporated in the FOODWEB module of the CEGB's NECTAR environmental code and are currently being used within CEGB to assess ingestion doses from consumption of terrestrial foods following an atmospheric radioactive release. Four foodchain models which have been developed within CEGB are fully described and results of typical calculations presented. Also given are the results of a validation of the dynamic model against measured 90Sr and 137Cs levels in milk in the U.K. resulting from weapons fallout. Methods are also described for calculating individual and population doses from ingestion using the results of the model calculations. The population dose calculations utilise a data base describing the spatial distribution of production of a wide range of agricultural products. The development of such a data base for Great Britain is described, based on the 1972 land use and livestock census, and maps are presented for each agricultural product. (U.K.)

  8. International comparison of computer codes for modelling the dispersion and transfer of tritium released to the atmosphere

    International Nuclear Information System (INIS)

    Computer codes for modelling the dispersion and transfer of tritium released to the atmosphere were compared. The codes originated from Canada, the United States, Sweden and Japan. The comparisons include acute and chronic emissions of tritiated water vapour or elemental tritium from a hypothetical nuclear facility. Individual and collective doses to the population within 100 km of the site were calculated. The discrepancies among the code predictions were about one order of magnitude for the HTO emissions but were significantly more varied for the HT emissions. Codes that did not account for HT to HTO conversion and cycling of tritium in the environment predicted doses that were several orders of magnitude less than codes that incorporate this feature into the model

  9. 76 FR 4299 - National Sea Grant Advisory Board; Meeting

    Science.gov (United States)

    2011-01-25

    ... National Oceanic and Atmospheric Administration National Sea Grant Advisory Board; Meeting AGENCY: National... sets forth the schedule and proposed agenda of a forthcoming meeting of the Sea Grant Advisory Board... site at http://www.seagrant.noaa.gov/leadership/advisory_board.html . DATES: The announced meeting...

  10. Modeled concentrations in rice and ingestion doses from chronic atmospheric releases of tritium

    International Nuclear Information System (INIS)

    The expansion of nuclear power programs in Asia has stimulated interest in the improved modeling of concentrations of tritium in rice, a staple crop grown throughout the far east. Normally, the specific activity model is used to calculate concentrations of tritium in the tissue water of edible plants to assess ingestion dose from chronic releases. However, because rice, like other grains, has much lower water content than most crops, the calculation must also account for organically bound tritium. This paper reviews ways to calculate steady-state concentrations of tritium in rice, including the methods of Canadian and US regulatory models, and the assumptions behind them. Concentrations in rice and resulting ingestion doses are compared for the various methods, and equations for calculating concentrations are recommended. The regulatory models underestimate doses received from ingestion of rice contaminated with tritium since they do not account explicitly for organically bound tritium. The importance of including organically bound tritium is illustrated in a comparison of doses from rice, leafy vegetables and milk for an Asian diet. Dose factors from tritium for these foods are estimated to be 135, 47, and 20 nSv y-1/(Bq m-3), respectively. Assuming known air concentrations, tritium concentrations in rice, calculated with the recommended equations, are uncertain by less than a factor 2 when tritium concentrations in the rice paddy water are known, and by less than a factor of 2.3 when concentrations in paddy water are unknown

  11. HARAD: a computer code for calculating daughter concentrations in air following the atmospheric release of a parent radionuclide

    International Nuclear Information System (INIS)

    The HARAD computer code, written in FORTRAN IV, calculates concentrations of radioactive daughters in air following the atmospheric release of a parent radionuclide under a variety of meteorological conditions. It can be applied most profitably to the assessment of doses to man from the noble gases such as 222Rn, 220Rn, and Xe and Kr isotopes. These gases can produce significant quantities of short-lived particulate daughters in an airborne plume, which are the major contributors to dose from these chains with gaseous parent radionuclides. The simultaneous processes of radioactive decay, buildup, and environmental losses through wet and dry deposition on ground surfaces are calculated for a daughter chain in an airborne plume as it is dispersed downwind from a point of release of a parent. The code employs exact solutions of the differential equations describing the above processes over successive discrete segments of downwind distance. Average values for the dry deposition coefficients of the chain members over each of these distance segments were treated as constants in the equations. The advantage of HARAD is its short computing time

  12. Novel atmospheric pressure plasma device releasing atomic hydrogen: reduction of microbial-contaminants and OH radicals in the air

    Science.gov (United States)

    Nojima, Hideo; Park, Rae-Eun; Kwon, Jun-Hyoun; Suh, Inseon; Jeon, Junsang; Ha, Eunju; On, Hyeon-Ki; Kim, Hye-Ryung; Choi, Kyoung Hui; Lee, Kwang-Hee; Seong, Baik-Lin; Jung, Hoon; Kang, Shin Jung; Namba, Shinichi; Takiyama, Ken

    2007-01-01

    A novel atmospheric pressure plasma device releasing atomic hydrogen has been developed. This device has specific properties such as (1) deactivation of airborne microbial-contaminants, (2) neutralization of indoor OH radicals and (3) being harmless to the human body. It consists of a ceramic plate as a positive ion generation electrode and a needle-shaped electrode as an electron emission electrode. Release of atomic hydrogen from the device has been investigated by the spectroscopic method. Optical emission of atomic hydrogen probably due to recombination of positive ions, H+(H2O)n, generated from the ceramic plate electrode and electrons emitted from the needle-shaped electrode have been clearly observed in the He gas (including water vapour) environment. The efficacy of the device to reduce airborne concentrations of influenza virus, bacteria, mould fungi and allergens has been evaluated. 99.6% of airborne influenza virus has been deactivated with the operation of the device compared with the control test in a 1 m3 chamber after 60 min. The neutralization of the OH radical has been investigated by spectroscopic and biological methods. A remarkable reduction of the OH radical in the air by operation of the device has been observed by laser-induced fluorescence spectroscopy. The cell protection effects of the device against OH radicals in the air have been observed. Furthermore, the side effects have been checked by animal experiments. The harmlessness of the device has been confirmed.

  13. 76 FR 2672 - Science Advisory Board Meeting

    Science.gov (United States)

    2011-01-14

    ... National Oceanic and Atmospheric Administration Science Advisory Board Meeting AGENCY: Office of Oceanic... Commerce (DOC). ACTION: Notice of public meeting. SUMMARY: This notice sets forth the schedule and proposed agenda of a forthcoming meeting of the NOAA Science Advisory Board. The members will discuss and...

  14. 76 FR 35410 - Science Advisory Board; Meeting

    Science.gov (United States)

    2011-06-17

    ... National Oceanic and Atmospheric Administration Science Advisory Board; Meeting AGENCY: Office of Oceanic... Commerce (DOC). ACTION: Notice of open meeting. SUMMARY: The Science Advisory Board (SAB) was established... meeting will be held Wednesday, July 20, 2011, from 9:30 a.m. to 5:30 p.m. and Thursday, July 21,...

  15. 78 FR 60851 - Science Advisory Board Meeting

    Science.gov (United States)

    2013-10-02

    ... National Oceanic and Atmospheric Administration Science Advisory Board Meeting AGENCY: Office of Oceanic... Commerce (DOC). ACTION: Notice of open meeting. SUMMARY: The NOAA Science Advisory Board (SAB) was... meeting will be held Tuesday, November 19, 2013 from 10:00 a.m. to 5:30 p.m. and Wednesday, November...

  16. 77 FR 38273 - Science Advisory Board; Meeting

    Science.gov (United States)

    2012-06-27

    ... National Oceanic and Atmospheric Administration Science Advisory Board; Meeting AGENCY: Office of Oceanic... Commerce (DOC). ACTION: Notice of open meeting. SUMMARY: The Science Advisory Board (SAB) was established... meeting will be held Monday, July 16, 2012 from 9 a.m. to 5:30 p.m. and Tuesday, July 17, 2012 from 8:30...

  17. Development of a code to simulate dispersion of atmospheric released tritium gas in the environmental media and to evaluate doses. TRIDOSE

    Energy Technology Data Exchange (ETDEWEB)

    Murata, Mikio [Nuclear Engineering Co., Ltd., Hitachi, Ibaraki (Japan); Noguchi, Hiroshi; Yokoyama, Sumi [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    2000-11-01

    A computer code (TRIDOSE) was developed to assess the environmental impact of atmospheric released tritium gas (T{sub 2}) from nuclear fusion related facilities. The TRIDOSE simulates dispersion of T{sub 2} and resultant HTO in the atmosphere, land, plant, water and foods in the environment, and evaluates contamination concentrations in the media and exposure doses. A part of the mathematical models in TRIDOSE were verified by comparison of the calculation with the results of the short range (400 m) dispersion experiment of HT gas performed in Canada postulating a short-time (30 minutes) accidental release. (author)

  18. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 5. Accidental Releases

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S

    2007-08-15

    Over the course of fifty-three years, LLNL had six acute releases of tritiated hydrogen gas (HT) and one acute release of tritiated water vapor (HTO) that were too large relative to the annual releases to be included as part of the annual releases from normal operations detailed in Parts 3 and 4 of the Tritium Dose Reconstruction (TDR). Sandia National Laboratories/California (SNL/CA) had one such release of HT and one of HTO. Doses to the maximally exposed individual (MEI) for these accidents have been modeled using an equation derived from the time-dependent tritium model, UFOTRI, and parameter values based on expert judgment. All of these acute releases are described in this report. Doses that could not have been exceeded from the large HT releases of 1965 and 1970 were calculated to be 43 {micro}Sv (4.3 mrem) and 120 {micro}Sv (12 mrem) to an adult, respectively. Two published sets of dose predictions for the accidental HT release in 1970 are compared with the dose predictions of this TDR. The highest predicted dose was for an acute release of HTO in 1954. For this release, the dose that could not have been exceeded was estimated to have been 2 mSv (200 mrem), although, because of the high uncertainty about the predictions, the likely dose may have been as low as 360 {micro}Sv (36 mrem) or less. The estimated maximum exposures from the accidental releases were such that no adverse health effects would be expected. Appendix A lists all accidents and large routine puff releases that have occurred at LLNL and SNL/CA between 1953 and 2005. Appendix B describes the processes unique to tritium that must be modeled after an acute release, some of the time-dependent tritium models being used today, and the results of tests of these models.

  19. Right Whale Sightings Advisory System (RWSAS)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Right Whale Sighting Advisory System (RWSAS) is a NOAA Fisheries program which was designed to reduce collisions between ships and the critically endangered...

  20. Inhibition of mercury release from forest soil by high atmospheric deposition of Ca²⁺ and SO₄²⁻.

    Science.gov (United States)

    Luo, Yao; Duan, Lei; Xu, Guangyi; Hao, Jiming

    2015-09-01

    As one of the most important natural mercury (Hg) sources, soil release (emission to the atmosphere or leaching to soil water) depends on various factors, some of which can be affected by atmospheric deposition. We studied the effect of flue gas desulfurization gypsum (FGDG) addition on soil Hg release in a Masson pine (Pinus massoniana) forest in southwestern China. FGDG addition simulated atmospheric deposition of Ca(2+), SO4(2-) and Hg, which are commonly high in China. Results showed that Hg concentration in soil water decreased with the gypsum treatment, suggesting that the mobility of Hg in mineral soil was reduced. Moreover, the application of gypsum also seems to have decreased Hg emission from the soil, shown by the lower Hg contents in leaf tissues of ground vegetation in the treated plots than in the reference. Both Hg mobility in the soil and Hg emission to the atmosphere were decreased despite the additional Hg input from FGDG. The decreased DOC concentration in soil water and the elevated organic sulfur content in the soil Oe & Oa horizons were speculated to result in an enhanced capacity of surface soil to bind Hg, and thus to reduce Hg release from the soil. However, with the increasingly stringent control of particulate matter (PM) and sulfur dioxide (SO2) emissions in China, the deposition of Ca(2+) and SO4(2-) is expected to decrease, and their ability to inhibit soil Hg release is likely to decline in the future. PMID:25935601

  1. The utilization of real time models as a decision aid following a large release of radionuclides into the atmosphere

    International Nuclear Information System (INIS)

    In 1986, following the Chernobyl accident, the International Nuclear Safety Advisory Group (INSAG) recommended, in Safety Series No. 75-INSAG-1, inter alia (recommendation B.2(10)), that ''the IAEA should develop technical guidance on the use of real-time models able to accept actual meteorological and radiological monitoring system data in predicting the radiological consequences of a nuclear accident for persons and the environment and in determining what protective measures are necessary''. 24 refs, 21 figs, 2 tabs

  2. 76 FR 40887 - Nominations to the Marine Fisheries Advisory Committee

    Science.gov (United States)

    2011-07-12

    ... qualifications and interest in serving on the Committee. Self- nominations are acceptable. The following contact... National Oceanic and Atmospheric Administration RIN 0648-XA558 Nominations to the Marine Fisheries Advisory Committee AGENCY: Commerce, National Oceanic and Atmospheric Administration (NOAA), National...

  3. 78 FR 2255 - Nominations to the Marine Fisheries Advisory Committee

    Science.gov (United States)

    2013-01-10

    ... National Oceanic and Atmospheric Administration RIN 0648-XC393 Nominations to the Marine Fisheries Advisory Committee AGENCY: National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Commerce. ACTION: Notice; request for nominations. SUMMARY: Nominations are being sought for...

  4. 75 FR 65304 - Advisory Committee on Commercial Remote Sensing (ACCRES); Request for Nominations

    Science.gov (United States)

    2010-10-22

    ... Commerce. ACTION: Notice requesting nominations for the Advisory Committee on Commercial Remote Sensing... serving on the Committee. Self-nominations are acceptable. The following contact information should... National Oceanic and Atmospheric Administration Advisory Committee on Commercial Remote Sensing...

  5. Diffusion-type model of the global carbon cycle for the estimation of dose to the world population from releases of carbon-14 to the atmosphere

    Energy Technology Data Exchange (ETDEWEB)

    Killough, G.G.

    1977-05-01

    A nonlinear dynamic model of the exchange of carbon among the atmosphere, terrestrial biosphere, and ocean is described and applied to estimating the radiation dose to the world's population from the release of /sup 14/C to the atmosphere from the nuclear power industry. A computer implementation of the model, written in the IBM Continuous System Modeling Program III (CSMP III) simulation language, is presented. The model treats the ocean as a diffusive medium with respect to vertical transport of carbon, and the nonlinear variation of CO/sub 2/ partial pressure with the total inorganic carbon concentration in surface waters is taken into account in calculating the transfer rate from ocean to atmosphere. Transfers between the atmosphere and terrestrial biosphere are represented by nonlinear equations which consider CO/sub 2/ fertilization and impose a constraint on the ultimate total carbon mass in the biosphere.

  6. Assessment of impact of a severe accident at nuclear power plant of Angra dos Reis with release of radionuclides to the atmosphere

    International Nuclear Information System (INIS)

    This study had as purpose the assess the impact of a severe accident, and also analyze the dispersion of 131I in the atmosphere, so that, through concentrating and inhaling dose of the plume, were possible to verify if the results are in accordance with the indicated data by the Plan of Emergency of the CNAAA regarding the Impact Zone and Control. This exercise was performed with the aid of an atmospheric model and a dispersion where to atmospheric modeling we used the data coupling WRF / CALMET and of dispersion, CALPUFF. The suggested accident consists of a Station Blackout at Nuclear Power of Angra (Unit 1), where through the total core involvement, will release 100% of the 131I to the atmosphere. The value of the total activity in the nucleus to this radionuclide is 7.44 x 1017 Bq, that is relative on the sixth day of burning. This activity will be released through the chimney at a rate in Bq/s in the scenario of 12, 24, 48 and 72 hours of release. Applying the model in the proposed scenario, it is verified that the plume has concentrations of the order of 1020 Bq/m³ and dose of about 108 Sv whose value is beyond of the presented by Eletronuclear in your current emergency plan. (author)

  7. Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of an atmospheric dispersion model with an improved deposition scheme and oceanic dispersion model

    Science.gov (United States)

    Katata, G.; Chino, M.; Kobayashi, T.; Terada, H.; Ota, M.; Nagai, H.; Kajino, M.; Draxler, R.; Hort, M. C.; Malo, A.; Torii, T.; Sanada, Y.

    2015-01-01

    Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Daiichi Nuclear Power Station (FNPS1) accident and their atmospheric and marine dispersion are essential to evaluate the environmental impacts and resultant radiological doses to the public. In this paper, we estimate the detailed atmospheric releases during the accident using a reverse estimation method which calculates the release rates of radionuclides by comparing measurements of air concentration of a radionuclide or its dose rate in the environment with the ones calculated by atmospheric and oceanic transport, dispersion and deposition models. The atmospheric and oceanic models used are WSPEEDI-II (Worldwide version of System for Prediction of Environmental Emergency Dose Information) and SEA-GEARN-FDM (Finite difference oceanic dispersion model), both developed by the authors. A sophisticated deposition scheme, which deals with dry and fog-water depositions, cloud condensation nuclei (CCN) activation, and subsequent wet scavenging due to mixed-phase cloud microphysics (in-cloud scavenging) for radioactive iodine gas (I2 and CH3I) and other particles (CsI, Cs, and Te), was incorporated into WSPEEDI-II to improve the surface deposition calculations. The results revealed that the major releases of radionuclides due to the FNPS1 accident occurred in the following periods during March 2011: the afternoon of 12 March due to the wet venting and hydrogen explosion at Unit 1, midnight of 14 March when the SRV (safety relief valve) was opened three times at Unit 2, the morning and night of 15 March, and the morning of 16 March. According to the simulation results, the highest radioactive contamination areas around FNPS1 were created from 15 to 16 March by complicated interactions among rainfall, plume movements, and the temporal variation of release rates. The simulation by WSPEEDI-II using the new source term reproduced the local and regional patterns of cumulative

  8. Comparison of the COMRADEX-IV and AIRDOS-EPA methodologies for estimating the radiation dose to man from radionuclide releases to the atmosphere

    International Nuclear Information System (INIS)

    This report presents a comparison between two computerized methodologies for estimating the radiation dose to man from radionuclide releases to the atmosphere. The COMRADEX-IV code was designed to provide a means of assessing potential radiological consequences from postulated power reactor accidents. The AIRDOS-EPA code was developed primarily to assess routine radionuclide releases from nuclear facilities. Although a number of different calculations are performed by these codes, three calculations are in common - atmospheric dispersion, estimation of internal dose from inhalation, and estimation of external dose from immersion in air containing gamma emitting radionuclides. The models used in these calculations were examined and found, in general, to be the same. Most differences in the doses calculated by the two codes are due to differences in values chosen for input parameters and not due to model differences. A sample problem is presented for illustration

  9. Evidence for large methane releases to the atmosphere from deep-sea gas-hydrate dissociation during the last glacial episode

    Science.gov (United States)

    de Garidel-Thoron, Thibault; Beaufort, Luc; Bassinot, Franck; Henry, Pierre

    2004-01-01

    Past atmospheric methane-concentration oscillations recorded in polar ice cores vary together with rapid global climatic changes during the last glacial episode. In the “clathrate gun hypothesis,” massive releases of deep-sea methane from marine gas-hydrate dissociation led to these well known, global, abrupt warmings in the past. If evidence for such releases in the water column exists, however, the mechanism and eventual transfer to the atmosphere has not yet been documented clearly. Here we describe a high-resolution marine-sediment record of stable carbon isotopic changes from the Papua Gulf, off Papua New Guinea, which exhibits two extremely depleted excursions (down to -9‰) at ≈39,000 and ≈55,000 years. Morphological, isotopic, and trace metal evidence dismisses authigenic calcite as the main source of depleted carbon. Massive methane release associated with deep-sea gas-hydrate dissociation is the most likely cause for such large depletions of δ13C. The absence of a δ13C gradient in the water column during these events implies that the methane rose through the entire water column, reaching the sea–air interface and thus the atmosphere. Foraminiferal δ18O composition suggests that the rise of the methane in the water column created an upwelling flow. These inferred emission events suggest that during the last glacial episode, this process was likely widespread, including tropical regions. Thus, the release of methane from the ocean floor into the atmosphere cannot be dismissed as a strong positive feedback in climate dynamics processes. PMID:15197255

  10. The radiological consequences of notional accidental releases of radioactivity from fast breeder reactors: sensitivity to the choice of atmospheric dispersion model

    International Nuclear Information System (INIS)

    The radiological consequences of a wide range of notional accidental releases from a 1300 MW(e) LMFBR were assessed in a study published in 1977 (NRPB - R53). In that study representative values were in general adopted for each of the important parameters while recognising that in reality they could vary considerably. The present study is concerned with the sensitivity of the predicted consequences to the choice of atmospheric dispersion models. A comparison is made of the air concentrations predicted by a number of atmospheric models (which have found broad application) for releases of activity in selected meteorological conditions. The implications, in terms of the radiological consequences of particular releases, of differences in the air concentrations predicted by the respective models are assessed semi-quantitatively. In general the radiological consequences are shown to be relatively insensitive to the choice of atmospheric dispersion model. This is particularly so for the incidence of late biological effects; for early biological effects the sensitivity is more pronounced although of the models considered, that adopted in the initial study would yield results at the upper end of the predicted range. (author)

  11. Implementation of a model of atmospheric dispersion and dose calculation in the release of radioactive effluents in the Nuclear Centre

    International Nuclear Information System (INIS)

    In the present thesis, the software DERA (Dispersion of Radioactive Effluents into the Atmosphere) was developed in order to calculate the equivalent dose, external and internal, associated with the release of radioactive effluents into the atmosphere from a nuclear facility. The software describes such emissions in normal operation, and not considering the exceptional situations such as accidents. Several tools were integrated for describing the dispersion of radioactive effluents using site meteorological information (average speed and wind direction and the stability profile). Starting with the calculation of the concentration of the effluent as a function of position, DERA estimates equivalent doses using a set of EPA s and ICRP s coefficients. The software contains a module that integrates a database with these coefficients for a set of 825 different radioisotopes and uses the Gaussian method to calculate the effluents dispersion. This work analyzes how adequate is the Gaussian model to describe emissions type -puff-. Chapter 4 concludes, on the basis of a comparison of the recommended correlations of emissions type -puff-, that under certain conditions (in particular with intermittent emissions) it is possible to perform an adequate description using the Gaussian model. The dispersion coefficients (σy and σz), that using the Gaussian model, were obtained from different correlations given in the literature. Also in Chapter 5 is presented the construction of a particular correlation using Lagrange polynomials, which takes information from the Pasquill-Gifford-Turner curves (PGT). This work also contains a state of the art about the coefficients that relate the concentration with the equivalent dose. This topic is discussed in Chapter 6, including a brief description of the biological-compartmental models developed by the ICRP. The software s development was performed using the programming language Python 2.7, for the Windows operating system (the XP version

  12. Advisory Committees.

    Science.gov (United States)

    ERIC Clearinghouse on Educational Management, Eugene, OR.

    This chapter of "The Best of the Best of ERIC," Volume 2, contains 14 summaries of documents and journal articles on citizen advisory committees, all of which are indexed in either "Resources in Education" or "Current Index to Journals in Education." The materials included deal with various aspects of this topic, such as the role of the school…

  13. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL) Part 1. Description of Tritium Dose Model (DCART) for Routine Releases from LLNL

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S R

    2006-09-27

    DCART (Doses from Chronic Atmospheric Releases of Tritium) is a spreadsheet model developed at Lawrence Livermore National Laboratory (LLNL) that calculates doses from inhalation of tritiated hydrogen gas (HT), inhalation and skin absorption of tritiated water (HTO), and ingestion of HTO and organically bound tritium (OBT) to adult, child (age 10), and infant (age 6 months to 1 year) from routine atmospheric releases of HT and HTO. DCART is a deterministic model that, when coupled to the risk assessment software Crystal Ball{reg_sign}, predicts doses with a 95% confidence interval. The equations used by DCART are described and all distributions on parameter values are presented. DCART has been tested against the results of other models and several sets of observations in the Tritium Working Groups of the International Atomic Energy Agency's programs, Biosphere Modeling and Assessment and Environmental Modeling for Radiation Safety. The version of DCART described here has been modified to include parameter values and distributions specific to conditions at LLNL. In future work, DCART will be used to reconstruct dose to the hypothetical maximally exposed individual from annual routine releases of HTO and HT from all LLNL facilities and from the Sandia National Laboratory's Tritium Research Laboratory over the last fifty years.

  14. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 6. Summary

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S

    2007-09-05

    Throughout fifty-three years of operations, an estimated 792,000 Ci (29,300 TBq) of tritium have been released to the atmosphere at the Livermore site of Lawrence Livermore National Laboratory (LLNL); about 75% was tritium gas (HT) primarily from the accidental releases of 1965 and 1970. Routine emissions contributed slightly more than 100,000 Ci (3,700 TBq) HT and about 75,000 Ci (2,800 TBq) tritiated water vapor (HTO) to the total. A Tritium Dose Reconstruction was undertaken to estimate both the annual doses to the public for each year of LLNL operations and the doses from the few accidental releases. Some of the dose calculations were new, and the others could be compared with those calculated by LLNL. Annual doses (means and 95% confidence intervals) to the potentially most exposed member of the public were calculated for all years using the same model and the same assumptions. Predicted tritium concentrations in air were compared with observed mean annual concentrations at one location from 1973 onwards. Doses predicted from annual emissions were compared with those reported in the past by LLNL. The highest annual mean dose predicted from routine emissions was 34 {micro}Sv (3.4 mrem) in 1957; its upper confidence limit, based on very conservative assumptions about the speciation of the release, was 370 {micro}Sv (37 mrem). The upper confidence limits for most annual doses were well below the current regulatory limit of 100 {micro}Sv (10 mrem) for dose to the public from release to the atmosphere; the few doses that exceeded this were well below the regulatory limits of the time. Lacking the hourly meteorological data needed to calculate doses from historical accidental releases, ingestion/inhalation dose ratios were derived from a time-dependent accident consequence model that accounts for the complex behavior of tritium in the environment. Ratios were modified to account for only those foods growing at the time of the releases. The highest dose from an

  15. Utilization of 134Cs/137Cs in the environment to identify the reactor units that caused atmospheric releases during the Fukushima Daiichi accident

    Science.gov (United States)

    Chino, Masamichi; Terada, Hiroaki; Nagai, Haruyasu; Katata, Genki; Mikami, Satoshi; Torii, Tatsuo; Saito, Kimiaki; Nishizawa, Yukiyasu

    2016-08-01

    The Fukushima Daiichi nuclear power reactor units that generated large amounts of airborne discharges during the period of March 12-21, 2011 were identified individually by analyzing the combination of measured 134Cs/137Cs depositions on ground surfaces and atmospheric transport and deposition simulations. Because the values of 134Cs/137Cs are different in reactor units owing to fuel burnup differences, the 134Cs/137Cs ratio measured in the environment was used to determine which reactor unit ultimately contaminated a specific area. Atmospheric dispersion model simulations were used for predicting specific areas contaminated by each dominant release. Finally, by comparing the results from both sources, the specific reactor units that yielded the most dominant atmospheric release quantities could be determined. The major source reactor units were Unit 1 in the afternoon of March 12, 2011, Unit 2 during the period from the late night of March 14 to the morning of March 15, 2011. These results corresponded to those assumed in our previous source term estimation studies. Furthermore, new findings suggested that the major source reactors from the evening of March 15, 2011 were Units 2 and 3 and that the dominant source reactor on March 20, 2011 temporally changed from Unit 3 to Unit 2.

  16. 76 FR 23352 - U.S. Advisory Commission on Public Diplomacy; Notice of Meeting

    Science.gov (United States)

    2011-04-26

    .... Advisory Commission on Public Diplomacy; Notice of Meeting The U.S. Advisory Commission on Public Diplomacy... ``strategic framework'' on public diplomacy released in March 2010 and discuss whether U.S. Public diplomacy....pdf for additional information. The U.S. Advisory Commission on Public Diplomacy is charged...

  17. Atmospheric dispersion modeling: Challenges of the Fukushima Daiichi response

    Energy Technology Data Exchange (ETDEWEB)

    Sugiyama, Gayle [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Nasstrom, John [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Pobanz, Brenda [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Foster, Kevin [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Simpson, Matthew [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Vogt, Phil [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Aluzzi, Fernando [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Homann, Steve [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2012-05-01

    In this research, the U.S. Department of Energy’s (DOE) National Atmospheric Release Advisory Center (NARAC) provided a wide range of predictions and analyses as part of the response to the Fukushima Daiichi Nuclear Power Plant accident including: daily Japanese weather forecasts and atmospheric transport predictions to inform planning for field monitoring operations and to provide U.S. government agencies with ongoing situational awareness of meteorological conditions; estimates of possible dose in Japan based on hypothetical U.S. Nuclear Regulatory Commission scenarios of potential radionuclide releases to support protective action planning for U.S. citizens; predictions of possible plume arrival times and dose levels at U.S. locations; and source estimation and plume model refinement based on atmospheric dispersion modeling and available monitoring data.

  18. Atmospheric corrosion of brass in outdoor applications: patina evolution, metal release and aesthetic appearance at urban exposure conditions.

    Science.gov (United States)

    Goidanich, S; Brunk, J; Herting, G; Arenas, M A; Odnevall Wallinder, I

    2011-12-15

    Short (days, weeks) and long-term (months, years) non-sheltered field exposures of brass (15, and 20 wt.% Zn) and copper sheet have been conducted in three European cities (Milan, Stockholm, Madrid) to generate an in-depth time-dependent understanding of patina evolution, corrosion rates, aesthetic appearance, metal release and degree of dezincification in relation to detailed bulk and surface characteristics prior to exposure. This has been accomplished by using a multitude of surface and bulk analytical tools, chemical analysis and colorimetric investigations. Small differences in surface finish and local variations in nobility observed for the non-exposed brass alloys resulted in slight differences in corrosion initiation. Despite different kinetic behaviour and relative surface distributions of zinc- and copper-rich patina constituents, similar phases were identified with copper-rich phases rapidly dominating the outermost patina layer in Milan, compared to Madrid and Stockholm showing both copper- and zinc-rich phases. As a consequence of differences in surface coverage of copper- and zinc-rich corrosion products at the different sites, the release ratios of copper to zinc varied concordantly. The released amount of zinc to copper (Zn/Cu) was for both alloys and test sites always higher compared to the bulk composition showing a preferential release of zinc. The amount of released copper from the brass alloys was on an average 30-40% lower compared to copper sheet at all test sites investigated. Significantly lower annual total release rates of copper and zinc compared with annual corrosion rates were evident for both brass alloys at all sites. PMID:22051551

  19. 75 FR 59697 - National Sea Grant Advisory Board

    Science.gov (United States)

    2010-09-28

    ... Designated Federal Officer by October 8, 2010 to provide sufficient time for Board review. Written comments... National Oceanic and Atmospheric Administration National Sea Grant Advisory Board AGENCY: National Oceanic... forth the schedule and proposed agenda of a forthcoming meeting of the Sea Grant Advisory Board...

  20. 78 FR 55683 - National Sea Grant Advisory Board

    Science.gov (United States)

    2013-09-11

    ... Designated Federal Officer by Monday, September 16, 2013 to provide sufficient time for the Board review... National Oceanic and Atmospheric Administration National Sea Grant Advisory Board AGENCY: National Oceanic... National Sea Grant Advisory Board members and notice of public meeting. SUMMARY: This notice responds...

  1. 77 FR 41171 - National Sea Grant Advisory Board

    Science.gov (United States)

    2012-07-12

    ... sufficient time for Board review. Written comments received after July 30, 2012, will be distributed to the... National Oceanic and Atmospheric Administration National Sea Grant Advisory Board AGENCY: National Oceanic... forth the schedule and proposed agenda of a forthcoming meeting of the National Sea Grant Advisory...

  2. Dutch distribution zones of stable iodine tablets based on atmospheric dispersion modelling of accidental releases from nuclear power plants.

    NARCIS (Netherlands)

    Kok-Palma, Y.S.; Leenders, M.; Meulenbelt, J.

    2010-01-01

    Rapid administration of stable iodine is essential for the saturation and subsequent protection of the thyroid gland against the potential harm caused by radioiodines. This paper proposes the Dutch risk analysis that uses an atmospheric dispersion model to calculate the size of the zones around nucl

  3. Evaluation of Gamma Fluence Rate Predictions for 41-argon Releases to the Atmosphere at a Nuclear Research Reactor Site

    DEFF Research Database (Denmark)

    Rojas-Palma, Carlos; Aage, Helle Karina; Astrup, Poul;

    2004-01-01

    was measured with remote sensing (Lidar) of the aerosol plumes while surface radiation levels were measured under the plume using gamma detectors at downwind distances of up to 1500 in from the release point. A database was built with simultaneous measurements of plume geometry and radiation field from Ar-41...

  4. Advantages of numerical atmospheric dispersion calculations for estimating dispersal and combination effects of stack releases from the nuclear industry

    International Nuclear Information System (INIS)

    An estimation of environmental pollution calculated using the idealized Gaussian distribution model to describe processes of atmospheric diffusion suffers from restrictions in the model, i.e. it assumes stationary homogeneous conditions in the atmosphere, a parallel mean wind flow with no (or at most linear) velocity shear, and constant turbulence characteristics within the plume. These assumptions are oversimplifications: for instance topographic effects, wind shear, time-dependent wind variations and the case of strong local interactions of the pollutant with other components in the atmosphere (e.g. fog, smog, rain, or other pollutant plumes) are ignored. Previous attempts to overcome the disadvantages using a purely numerical evaluation of the differential equations describing the transport, diffusion and any reactions of the pollutants in the atmosphere were unsuccessful, since 'artificial diffusion' effects were observed that led to unacceptable errors when great distances or long times were considered. At present, the best method of solving this problem appears to be the use of a combined Eulerian-Lagrangian numerical approach, called the particle-in-cell method, which was developed in the USA. The method has been tested successfully by making comparisons with typical Gaussian calculations over long time intervals or large distances: it was also applied to several actual transport problems involving complex topographies with wind variations in time, and to the effects of chemical reactions and local rainfall. This method, avoiding the undue simplification of the Gaussian calculation and the inherent fictitious diffusion patterns of the purely numerical evaluation seems to be particularly suited to solving atmospheric pollution transport problems under complex conditions that may occur in the neighbourhood of large nuclear power stations. (author)

  5. 76 FR 65183 - National Oceanic and Atmospheric Administration

    Science.gov (United States)

    2011-10-20

    ... National Oceanic and Atmospheric Administration National Climate Assessment and Development Advisory... Administration (NOAA), Department of Commerce (DOC). ACTION: Notice of open meeting. SUMMARY: The National... of Oceanic and Atmospheric Research, National Oceanic and Atmospheric Administration. BILLING...

  6. SUMIT: a computer code to interpolate and sum single release atmospheric model results onto a master grid

    International Nuclear Information System (INIS)

    This report describes a computer code for the Systematic Unification of Multiple Input Tables of data (SUMIT). This code is designed to be an integral part of the Computerized Radiological Risk Investigation System (CRRIS) for assessing the health impacts of airborne releases of radioactive pollutants. SUMIT reads radionuclide air concentrations and ground deposition rates for different release points and combines them over a specified master grid. The resulting SUMIT grid may be circular, rectangular, or consist of irregularly spaced points. SUMIT can apply a different scaling factor to all data from each source. This program is designed to sum data written by the CRRIS code ANEMOS. Of course, SUMIT could read any data organized in the same manner at ANEMOS output. Descriptions of the necessary user input and data files are provided along with a complete listing of the SUMIT code. 10 references, 4 figures, 2 tables

  7. The meteorological system and the basic parameters required for predicting the transfer of radionuclides released into the atmosphere

    International Nuclear Information System (INIS)

    The meteorological measuring system, operating at the site of the Karlsruhe Nuclear Research Centre, and the present working programme of the Environmental Meteorology Department of the Karlsruhe Nuclear Research Centre are described in this report. The main aspects of meteorology and radioecology during normal operation and possible accidents arising from nuclear facilities, and natural sources of radioactivity are presented. Besides, different methods of dividing the atmosphere into stability classes and of determining the dispersion parameters are indicated. (orig.)

  8. Evaluation of radioactive cesium impact from atmospheric deposition and direct release fluxes into the North Pacific from the Fukushima Daiichi nuclear power plant

    Science.gov (United States)

    Tsubono, Takaki; Misumi, Kazuhiro; Tsumune, Daisuke; Bryan, Frank O.; Hirose, Katsumi; Aoyama, Michio

    2016-09-01

    The North Pacific distribution of 134Cs released from the Fukushima Daiichi nuclear power plant (F1NPP) has been investigated using an eddy-resolving model. We conducted simulations based on two scenarios: (1) an input flux that was a combination of atmospheric deposition and direct release from the F1NPP (combination-flux scenario) and (2) an input flux that took account only of the direct release of 134Cs (single-flux scenario). The combination-flux scenario simulation successfully reproduced the distribution of 134Cs activity observed in the surface layer from April 2011 to January 2014. The results indicate that 134Cs deposited via atmospheric deposition into the Kuroshio-Oyashio Interfrontal Zone and 134Cs directly released from F1NPP were both transported to south of the Subarctic Front around 42°N in June of 2012. The combination-flux scenario suggests that the 134Cs activities observed in the area north of 42°N in 2012 originated from atmospheric deposition and that the 134Cs activity was subducted in Central Mode Water during the winters of 2011 and 2012. We directly compared simulated and observed 134Cs activities in the surface layer at 179 points across a wide area to the east of 155°E from 2011 to 2013 to evaluate the accuracy of the two scenarios. The root-mean-square error and correlation coefficient, R, were 7.3 Bq m-3 and 0.86, respectively, for the combination-flux scenario and 13.8 Bq m-3 and 0.46, respectively, for the single-flux scenario, confirming that reproduction of the 134Cs activity in the North Pacific after the F1NPP accident requires taking both fluxes into consideration. Based on a linear least-squares regression between simulated and observed 134Cs activity, the total 134Cs flux into the North Pacific was estimated at 16.1±1.4 PBq.

  9. Non-conservative behavior of bromide in surface waters and brines of Central Andes : a release into the atmosphere ?

    OpenAIRE

    Risacher, François; Fritz, B; Alonso, H.

    2006-01-01

    The transfer of reactive bromine into the atmosphere was recently observed by Honninger et al. [Honninger, G., Bobrowski, N., Palenque, E.R., Torrez, R., Platt, U., 2004. Reactive bromine and sulfur emission at salar de Uyuni, Bolivia. Geophys. Res. Lett. 31, doi:10.1029/2003GL018818] in a large salt pan of the Bolivian Altiplano: the salar de Uyuni. However, bromide is considered to be an excellent conservative tracer, which leads to the questioning of its actual conservation in surficial ge...

  10. Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of atmospheric dispersion model with improved deposition scheme and oceanic dispersion model

    Directory of Open Access Journals (Sweden)

    G. Katata

    2014-06-01

    Full Text Available Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Dai-ichi Nuclear Power Station (FNPS1 accident and their atmospheric and marine dispersion are essential to evaluate the environmental impacts and resultant radiological doses to the public. In this paper, we estimate a detailed time trend of atmospheric releases during the accident by combining environmental monitoring data with atmospheric model simulations from WSPEEDI-II (Worldwide version of System for Prediction of Environmental Emergency Dose Information, and simulations from the oceanic dispersion model SEA-GEARN-FDM, both developed by the authors. A sophisticated deposition scheme, which deals with dry and fogwater depositions, cloud condensation nuclei (CCN activation and subsequent wet scavenging due to mixed-phase cloud microphysics (in-cloud scavenging for radioactive iodine gas (I2 and CH3I and other particles (CsI, Cs, and Te, was incorporated into WSPEEDI-II to improve the surface deposition calculations. The fallout to the ocean surface calculated by WSPEEDI-II was used as input data for the SEA-GEARN-FDM calculations. Reverse and inverse source-term estimation methods based on coupling the simulations from both models was adopted using air dose rates and concentrations, and sea surface concentrations. The results revealed that the major releases of radionuclides due to FNPS1 accident occurred in the following periods during March 2011: the afternoon of 12 March due to the wet venting and hydrogen explosion at Unit 1, the morning of 13 March after the venting event at Unit 3, midnight of 14 March when the SRV (Safely Relief Valve at Unit 2 was opened three times, the morning and night of 15 March, and the morning of 16 March. According to the simulation results, the highest radioactive contamination areas around FNPS1 were created from 15 to 16 March by complicated interactions among rainfall, plume movements, and the temporal

  11. Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of atmospheric dispersion model with improved deposition scheme and oceanic dispersion model

    Science.gov (United States)

    Katata, G.; Chino, M.; Kobayashi, T.; Terada, H.; Ota, M.; Nagai, H.; Kajino, M.; Draxler, R.; Hort, M. C.; Malo, A.; Torii, T.; Sanada, Y.

    2014-06-01

    Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Dai-ichi Nuclear Power Station (FNPS1) accident and their atmospheric and marine dispersion are essential to evaluate the environmental impacts and resultant radiological doses to the public. In this paper, we estimate a detailed time trend of atmospheric releases during the accident by combining environmental monitoring data with atmospheric model simulations from WSPEEDI-II (Worldwide version of System for Prediction of Environmental Emergency Dose Information), and simulations from the oceanic dispersion model SEA-GEARN-FDM, both developed by the authors. A sophisticated deposition scheme, which deals with dry and fogwater depositions, cloud condensation nuclei (CCN) activation and subsequent wet scavenging due to mixed-phase cloud microphysics (in-cloud scavenging) for radioactive iodine gas (I2 and CH3I) and other particles (CsI, Cs, and Te), was incorporated into WSPEEDI-II to improve the surface deposition calculations. The fallout to the ocean surface calculated by WSPEEDI-II was used as input data for the SEA-GEARN-FDM calculations. Reverse and inverse source-term estimation methods based on coupling the simulations from both models was adopted using air dose rates and concentrations, and sea surface concentrations. The results revealed that the major releases of radionuclides due to FNPS1 accident occurred in the following periods during March 2011: the afternoon of 12 March due to the wet venting and hydrogen explosion at Unit 1, the morning of 13 March after the venting event at Unit 3, midnight of 14 March when the SRV (Safely Relief Valve) at Unit 2 was opened three times, the morning and night of 15 March, and the morning of 16 March. According to the simulation results, the highest radioactive contamination areas around FNPS1 were created from 15 to 16 March by complicated interactions among rainfall, plume movements, and the temporal variation of

  12. Using the model release ARTM associated with resources for simulation geoprocessing radiological environmental impact of atmospheric emissions from a research reactor

    International Nuclear Information System (INIS)

    The knowledge of the dispersion of radionuclides emissions into the atmosphere arising from a nuclear reactor, in normal operation, is an important step in the process of the nuclear and environmental assessment study. These processes require an assessment study of the radiological environmental impact. However, to estimate this impact a simulation of the transport mechanisms and deposition of pollutants released into the atmosphere is required. The present study aimed at the application of the dispersion model ARTM (Atmospheric Radionuclide Transport Model), together with the powerful tools of the GIS (Geographic Information System) for the environmental impact assessment of a radiological nuclear reactor under typically routine and conditions. Therefore some important information from the national project for a research reactor known as Brazilian Multipurpose Reactor (RMB) was considered. The information of the atmospheric emissions of the reactor, needed for the simulation of this project, was based on data of the Open Pool Australian Light Water (OPAL).Other important data that had to be collected and analyzed were the source term, the topography, the meteorology and the environmental data. The radionuclides analyzed as pollutants were 41Ar; 140Ba; 51Cr; 137Cs; 131I; 133I; 85m Kr; 87Kr; 88Kr; 140La; 133Xe; 135Xe; 3H; 90Sr. The model was run for two chronological scenarios according to their meteorological data for the years 2009 and 2010, respectively. The adoption of GIS techniques was relevant in planning, data preprocessing and in the post-processing of results as well. After pre-processing, the input data were processed by the ARTM dispersion model. Maps, charts, and tables were then produced and evaluated. According to the simulated and evaluated scenarios it could be concluded that exposure pathways that mostly contributed to the dose for individual public were 41Ar, for immersion in the plume, and 133I, for inhalation. Nevertheless, even these pathways

  13. Program report for FY 1984 and 1985 Atmospheric and Geophysical Sciences Division of the Physics Department

    Energy Technology Data Exchange (ETDEWEB)

    Knox, J.B.; MacCracken, M.C.; Dickerson, M.H.; Gresho, P.M.; Luther, F.M.

    1986-08-01

    This annual report for the Atmospheric and Geophysical Sciences Division (G-Division) summarizes the activities and highlights of the past three years, with emphasis on significant research findings in two major program areas: the Atmospheric Release Advisory Capability (ARAC), with its recent involvement in assessing the effects of the Chernobyl reactor accident, and new findings on the environmental consequences of nuclear war. The technical highlights of the many other research projects are also briefly reported, along with the Division's organization, budget, and publications.

  14. Program report for FY 1984 and 1985 Atmospheric and Geophysical Sciences Division of the Physics Department

    International Nuclear Information System (INIS)

    This annual report for the Atmospheric and Geophysical Sciences Division (G-Division) summarizes the activities and highlights of the past three years, with emphasis on significant research findings in two major program areas: the Atmospheric Release Advisory Capability (ARAC), with its recent involvement in assessing the effects of the Chernobyl reactor accident, and new findings on the environmental consequences of nuclear war. The technical highlights of the many other research projects are also briefly reported, along with the Division's organization, budget, and publications

  15. Nitrous oxide in the Changjiang (Yangtze River Estuary and its adjacent marine area: Riverine input, sediment release and atmospheric fluxes

    Directory of Open Access Journals (Sweden)

    G.-L. Zhang

    2010-11-01

    Full Text Available Dissolved nitrous oxide (N2O was measured in the waters of the Changjiang (Yangtze River Estuary and its adjacent marine area during five surveys covering the period of 2002–2006. Dissolved N2O concentrations ranged from 6.04 to 21.3 nM, and indicate great temporal and spatial variations. Distribution of N2O in the Changjiang Estuary was influenced by multiple factors and the key factor varied between cruises. Dissolved riverine N2O was observed monthly at station Xuliujing of the Changjiang, and ranged from 12.4 to 33.3 nM with an average of 19.4 ± 7.3 nM. N2O concentrations in the river waters showed obvious seasonal variations with higher values occurring in both summer and winter. Annual input of N2O from the Changjiang to the estuary was estimated to be 15.0 × 106 mol/yr. N2O emission rates from the sediments of the Changjiang Estuary in spring ranged from −1.88 to 2.02 μmol m−2 d−1, which suggests that sediment can act as either a source or a sink of N2O in the Changjiang Estuary. Average annual sea-to-air N2O fluxes from the studied area were estimated to be 7.7 ± 5.5, 15.1 ± 10.8 and 17.0 ± 12.6 μmol m−2d−1 using LM86, W92 and RC01 relationships, respectively. Hence the Changjiang Estuary and its adjacent marine area are a net source of atmospheric N2O.

  16. Simulation of atmospheric dispersion of radioactivity from the Chernobyl accident

    International Nuclear Information System (INIS)

    Measurements of airborne radioactivity over Europe, Japan, and the United States indicated that the release from the Chernobyl reactor accident in the Soviet Union on April 26, 1986 contained a wide spectrum of fission up to heights of 7 km or more within a few days after the initial explosion. This high-altitude presence of radioactivity would in part be attributable to atmospheric dynamics factors other than the thermal energy released in the initial explosion. Indications were that two types of releases had taken place -- an initial powerful explosion followed by days of a less energetic reactor fire. The Atmospheric Release Advisory Capability (ARAC) at the Lawrence Livermore National Laboratory (LLNL) utilized three-dimensional atmospheric dispersion models to determine the characteristics of the source term (release) and the evolution of the spatial distributions of the airborne radioactivity as it was transported over Europe and subsequently over the northern hemisphere. This paper describes the ARAC involvement and the results of the hemispheric model calculations which graphically depict the extensive dispersal of radioactivity. 1 fig

  17. 77 FR 12837 - Notice of Release of the Exposure Draft, Accounting for Impairment of General Property, Plant...

    Science.gov (United States)

    2012-03-02

    ... From the Federal Register Online via the Government Publishing Office FEDERAL ACCOUNTING STANDARDS ADVISORY BOARD Notice of Release of the Exposure Draft, Accounting for Impairment of General Property, Plant, and Equipment Remaining in Use AGENCY: Federal Accounting Standards Advisory Board....

  18. Emergency procedures for nuclear installations: on the simulation and interpretation of offsite air sampling measurements during the early phase of an accidental release of radioactivity to the atmosphere

    International Nuclear Information System (INIS)

    During the early stages of an accidental release of radioactive material to the atmosphere, the immediate aims of the offsite Emergency management scheme are twofold: firstly, to determine the extent of any contamination occurring close to the site (i.e. out to a few km) for purposes of protecting the local public; secondly, to provide early estimates of source term and hence permit consequences farther afield to be assessed. In practice, these objectives would be largely reliant upon the sampling measurements made by mobile offsite survey teams and the ability with which they may be interpreted in terms of an atmospheric dispersion model. This paper investigates the methodology and effectiveness of these tasks for the rapid provision of advice to decision makers. SF6 tracer experiments which simulate the offsite plume sampling procedure are described. These provide realistic demonstrations of data quality with respect to variability and sparsity, and provide practical insight into the cause of these effects as well as guidance to improve the effectiveness of the sampling strategy. A statistical scheme is described which may be used in conjunction with a plume dispersion model to analyse such data and to provide hourly averaged estimates of source strength and plume concentration/dose. Worked examples using SF6 simulation data sets for a single sampling vehicle and a 2-dimensional gaussian plume model are presented and used to assess the accuracy and limitations of the averall approach. Although the results are encouraging, performance is found to fairly sensitive to the quality and quantity of the data

  19. The choice of individual dose criterion at which to restrict agricultural produce following an unplanned release of radioactive material to atmosphere

    CERN Document Server

    Dionian, J

    1985-01-01

    In the event of an accidental release of radioactive material to atmosphere, the introduction of emergency countermeasures will be based on the need to limit the risk to individuals. However, it has been suggested that a form of cost-benefit analysis may be used as an input to decisions on the withdrawal of countermeasures, although it is recognised that these decisions may be influenced by factors other than those directly related to radiological protection. In this study, a method based on cost-benefit analysis is illustrated for assessing the optimum level of individual dose at which restrictions on agricultural production may be considered. This requires monetary values to be assigned to both the lost food production and to the health detriment, expressed as the collective effective dose equivalent commitment. It has been assumed in this analysis that food-supply restrictions are both introduced and withdrawn at the same projected level of annual individual dose. The effect on the optimum dose level of th...

  20. Methane release from sediment seeps to the atmosphere is counteracted by highly active Methylococcaceae in the water column of deep oligotrophic Lake Constance.

    Science.gov (United States)

    Bornemann, Maren; Bussmann, Ingeborg; Tichy, Lucas; Deutzmann, Jörg; Schink, Bernhard; Pester, Michael

    2016-08-01

    Methane emissions from freshwater environments contribute substantially to global warming but are under strong control of aerobic methane-oxidizing bacteria. Recently discovered methane seeps (pockmarks) in freshwater lake sediments have the potential to bypass this control by their strong outgassing activity. Whether this is counteracted by pelagic methanotrophs is not well understood yet. We used a (3)H-CH4-radiotracer technique and pmoA-based molecular approaches to assess the activity, abundance and community structure of pelagic methanotrophs above active pockmarks in deep oligotrophic Lake Constance. Above profundal pockmarks, methane oxidation rates (up to 458 nmol CH4 l(-1) d(-1)) exceeded those of the surrounding water column by two orders of magnitude and coincided with maximum methanotroph abundances of 0.6% of the microbial community. Phylogenetic analysis indicated a dominance of members of the Methylococcaceae in the water column of both, pockmark and reference sites, with most of the retrieved sequences being associated with a water-column specific clade. Communities at pockmark and reference locations also differed in parts, which was likely caused by entrainment of sediment-hosted methanotrophs at pockmark sites. Our results show that the release of seep-derived methane to the atmosphere is counteracted by a distinct methanotrophic community with a pronounced activity throughout bottom waters. PMID:27267930

  1. 76 FR 18757 - Monthly Public Meetings of the Local Government Advisory Committee's Small Community Advisory...

    Science.gov (United States)

    2011-04-05

    ... AGENCY Monthly Public Meetings of the Local Government Advisory Committee's Small Community Advisory... Advisory Committee Act, the U.S. Environmental Protection Agency's Local Government Advisory Committee's... the Local Government Advisory Committee. BILLING CODE 6560-50-P...

  2. 77 FR 71591 - Meetings of the Local Government Advisory Committee and the Small Communities Advisory Subcommittee

    Science.gov (United States)

    2012-12-03

    ... AGENCY Meetings of the Local Government Advisory Committee and the Small Communities Advisory... environmental issues affecting small communities. The Local Government Advisory Committee (LGAC) will meet in... INFORMATION CONTACT: Local Government Advisory Committee (LGAC) and Small Communities Advisory...

  3. Evacuation of the population as a means of mitigating the radiological effects following an accidental atmospheric release of radioactivity from a nuclear power plant

    International Nuclear Information System (INIS)

    Evacuation of the population in the vicinity of a nuclear power plant following an accidental release of radioactivity into the atmosphere, is one of the protective means which might reduce the radiation doses and radiological effects caused to the population. An evacuation simulation model - RECLEAR - was developed in order to investigate the dependency of the evacuation efficiency on various parameters. It was found that the efficiency is dependent on many factors - meteorological, demographic and transportation parameters. RECLEAR was developed by coupling two computer codes: a) CLEAR (Mo82) a simulation model which calculates the time required to evacuate the population from a given area - Emergency Planning Zone (EPZ) and b) REMAND (St85) - a radiological consequence model which evaluates the radiation doses and radiological effects caused to (a stationary) population, following an accident in a nuclear power plant. RECLEAR is a simulation code which calculates the evacuation duration as well as the radiation doses to the population, received while evacuating. The code describes the progress of individual vehicles along the site's specific road network (composed of road segments), using the relationships between traffic flow rates, travel velocity and road capacity in each road segment. The code also simulates traffic jams and intersections. Preliminary results reveal two main factors that might effect the efficiency of evacuation: 1) The traffic density during evacuation and 2) The delay of the population before onset of movement. It should be emphasized that the results presented in this study are of a preliminary nature, however, the model and the results received so far might constitute a basis for further work on the subject and it can also be used as a tool in non-radiological emergency planning and, with some adaptions, as a means of a real-time hazards evaluation

  4. Citizens Advisory Committees.

    Science.gov (United States)

    Stemnock, Suzanne K.

    1968-01-01

    This document contains the results of a national survey designed to determine the composition and location of permanent citizens advisory committees operating within the nation's school districts. The 52 district-wide, continuing citizens advisory bodies identified by 290 responding school systems are listed alphabetically by State. The following…

  5. 76 FR 8715 - Technology Advisory Committee

    Science.gov (United States)

    2011-02-15

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee will hold...: Office of the Secretary. Please use the title ``Technology Advisory Committee'' in any written...

  6. Dose assessment for releases of tritium and activation products into the atmosphere performed in the frame of two fusion related studies: ITER-EDA and SEAFP

    International Nuclear Information System (INIS)

    Within the SEAFP and ITER studies dose calculations have been performed for tritium and activation products. Unit release rates as well as preliminary activation product source terms have been investigated. The individual dose values at the fence of the site together with the collective dose to the public have been obtained. Worst case and typical release conditions have been investigated. Additionally, various release durations under accidental conditions, ranging from 1 hour up to 7 days, have been considered. (orig.)

  7. Dose assessment for releases of tritium and activation products into the atmosphere performed in the frame of two fusion related studies: ITER-EDA and SEAFP

    Energy Technology Data Exchange (ETDEWEB)

    Raskob, W. [Kernforschungszentrum Karlsruhe, Abt. INR (Germany)]|[D.T.I. Dr. Trippe Ingenieurgesellschaft, Karlsruhe (Germany)

    1995-12-31

    Within the SEAFP and ITER studies dose calculations have been performed for tritium and activation products. Unit release rates as well as preliminary activation product source terms have been investigated. The individual dose values at the fence of the site together with the collective dose to the public have been obtained. Worst case and typical release conditions have been investigated. Additionally, various release durations under accidental conditions, ranging from 1 hour up to 7 days, have been considered. (orig.).

  8. NOAA Science Advisory Board, Review of National Center for Environmental Prediction Ocean Modeling

    OpenAIRE

    Pietrafesa, L. J.; Blaskovich, D.; Blumberg, A.F.; A. J. Busalacchi; McClean, J.; Mooers, C.N.K.; Rogers, D.P.; Weisberg, R.H.

    2004-01-01

    In response to a request from the National Oceanic & Atmospheric Administration (NOAA) National Weather Service, an Ocean Model Review Panel (ORMP) was commissioned by the NOAA Science Advisory Board (SAB), to address the following two-part Charge:

  9. Current National Weather Service Watches, Warnings, or Advisories for the United States

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The National Weather Service (NWS) Storm Prediction Center uses RSS feeds to disseminate all watches, warnings and advisories for the United States that are...

  10. 75 FR 13597 - NASA Advisory Council; Science Committee; Astrophysics Subcommittee; Meeting

    Science.gov (United States)

    2010-03-22

    ... SPACE ADMINISTRATION NASA Advisory Council; Science Committee; Astrophysics Subcommittee; Meeting AGENCY... and Space Administration (NASA) announces a meeting of the Astrophysics Subcommittee of the NASA... following topics: --Astrophysics Division Update. --Kepler Data Release Policy. It is imperative that...

  11. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 2. LLNL Annual Site-specific Data, 1953 - 2003

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S R

    2005-03-07

    It is planned to use the tritium dose model, DCART (Doses from Chronic Atmospheric Releases of Tritium), to reconstruct dose to the hypothetical maximally exposed individual from annual routine releases of tritiated water (HTO) and tritiated hydrogen gas (HT) from all Lawrence Livermore National Laboratory (LLNL) facilities and from the Sandia National (SNL) Laboratory's Tritium Research Laboratory over the last fifty years. DCART has been described in Part 1 of ''Historical Doses From Tritiated Water And Tritiated Hydrogen Gas Released To The Atmosphere from Lawrence Livermore National Laboratory (LLNL)'' (UCRL-TR-205083). This report (Part 2) summarizes information about annual routine releases of tritium from LLNL (and SNL) since 1953. Historical records were used to derive facility-specific annual data (e.g., source terms, dilution factors, ambient air concentrations, meteorological data, including absolute humidity and rainfall, etc.) and their associated uncertainty distributions. These data will be used as input to DCART to calculate annual dose for each year of LLNL operations. Sources of information are carefully referenced, and assumptions are documented. Confidence on all data post-1974 is quite high. Prior to that, further adjustment to the estimated uncertainty may have to be made if more information comes to light.

  12. 78 FR 69991 - Advisory Committee; Veterinary Medicine Advisory Committee; Termination

    Science.gov (United States)

    2013-11-22

    ... HUMAN SERVICES Food and Drug Administration 21 CFR Part 14 Advisory Committee; Veterinary Medicine... Food and Drug Administration (FDA) is announcing the termination of the Veterinary Medicine Advisory... Michael.Ortwerth@fda.hhs.gov . SUPPLEMENTARY INFORMATION: The Veterinary Medicine Committee...

  13. 75 FR 30002 - Federal Advisory Committee; Threat Reduction Advisory Committee

    Science.gov (United States)

    2010-05-28

    ... Office of the Secretary Federal Advisory Committee; Threat Reduction Advisory Committee AGENCY... the charter for the Threat Reduction Advisory Committee (hereafter referred to as the Committee). FOR... Acquisition, Technology and Logistics and the Director of the Defense Threat Reduction Agency on the...

  14. 75 FR 60430 - Federal Advisory Committee; Threat Reduction Advisory Committee

    Science.gov (United States)

    2010-09-30

    ... of the Secretary Federal Advisory Committee; Threat Reduction Advisory Committee AGENCY: Office of... announces a meeting of the Threat Reduction Advisory Committee (hereafter referred to as ``the Committee..., October 21, 2010, from 9 a.m. to 5 p.m. ADDRESSES: The meeting will be held at the Heritage...

  15. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Relesed to the Atmosphere from Lawrence Livermore National Laboratory (LLNL) Part 1. Description of Tritium Dose Model (DCART) for Chronic Releases from LLNL

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S

    2004-06-30

    DCART (Doses from Chronic Atmospheric Releases of Tritium) is a spreadsheet model developed at Lawrence Livermore National Laboratory (LLNL) that calculates doses from inhalation of tritiated hydrogen gas (HT), inhalation and skin absorption of tritiated water (HTO), and ingestion of HTO and organically bound tritium (OBT) to adult, child (age 10), and infant (age 6 months to 1 year) from routine atmospheric releases of HT and HTO. DCART is a deterministic model that, when coupled to the risk assessment software Crystal Ball{reg_sign}, predicts doses with a 95th percentile confidence interval. The equations used by DCART are described and all distributions on parameter values are presented. DCART has been tested against the results of other models and several sets of observations in the Tritium Working Group of the International Atomic Energy Agency's Biosphere Modeling and Assessment Programme. The version of DCART described here has been modified to include parameter values and distributions specific to conditions at LLNL. In future work, DCART will be used to reconstruct dose to the hypothetical maximally exposed individual from annual routine releases of HTO and HT from all LLNL facilities and from the Sandia National Laboratory's Tritium Research Laboratory over the last fifty years.

  16. 76 FR 53901 - The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting

    Science.gov (United States)

    2011-08-30

    ... management, SES leadership development, and SES performance appraisal systems. The meeting minutes will be... ADMINISTRATION The President's Management Advisory Board (PMAB); Notification of Upcoming Public Advisory Meeting.... SUMMARY: The President's Management Advisory Board (PMAB), a Federal Advisory Committee established...

  17. Experimental evaluation of gamma fluence-rate predictions from Argon-41 releases to the atmosphere over a nuclear research reactor site

    DEFF Research Database (Denmark)

    Rojas-Palma, C.; Aage, H.K.; Astrup, P.;

    2004-01-01

    was measured with remote sensing (Lidar) of the aerosol plumes while surface radiation levels were measured under the plume using gamma detectors at downwind distances of up to 1500 in from the release point. A database was built with simultaneous measurements of plume geometry and radiation field from Ar-41...

  18. Numerical modelling and parametric study of the atmospheric dispersion after radionuclide releases: the Chernobyl accident and the Algeciras incident. Comparison with observation data

    International Nuclear Information System (INIS)

    Full text: The attempts of modelling the release following upon the Chernobyl accident and the Algeciras incident are reported. Computing power and observation database are used for sensitivity and parametric studies. The meteorological mesoscale model MM5 is nudged with the ERA-40 reanalysis to simulate the meteorological conditions used by the dispersion model, POLAIR3D. In case of the Chernobyl accident the points of interest are many: the representativity of the meteorological simulations is evaluated using observations with a special focus on precipitation events. The radionuclide dispersion, the dry deposition and scavenging simulated by POLAIR3D are compared with European measurements of activities and depositions. Results of the sensitivity studies are done to evaluate the impact of the deposition parameterizations and source-term characteristics (height of release, quantities). The time dynamic of the contaminated cloud is also investigated with regard to the arrival time on different countries. Similarly, for the Algeciras release, sensitivity to the meteorological fields, source term and depletion processes are analyzed. For the available activity concentrations in the air, data-model comparisons are performed. (author)

  19. 78 FR 50040 - Technology Advisory Committee

    Science.gov (United States)

    2013-08-16

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission. ACTION: Notice of Meeting of Technology Advisory Committee. SUMMARY: The Commodity Futures Trading Commission (CFTC) announces that on September 12, 2013, the CFTC's Technology Advisory Committee (TAC) will hold a...

  20. 76 FR 776 - Technology Advisory Committee

    Science.gov (United States)

    2011-01-06

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee will hold...., Washington, DC 20581, attention: Office of the Secretary. Please use the title ``Technology...

  1. 75 FR 58367 - Technology Advisory Committee Meeting

    Science.gov (United States)

    2010-09-24

    ... COMMISSION Technology Advisory Committee Meeting AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The Technology Advisory Committee...., Washington, DC 20581, attention: Office of the Secretary. Please use the title ``Technology...

  2. 75 FR 28542 - Superior Resource Advisory Committee

    Science.gov (United States)

    2010-05-21

    ... orient the new Superior Resource Advisory Committee members on their roles and responsibilities. DATES... of the roles and responsibilities of the Superior Resource Advisory Committee members; Election of... Forest Service Superior Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice...

  3. 77 FR 36250 - Recreation Resource Advisory Committees

    Science.gov (United States)

    2012-06-18

    ... Forest Service Recreation Resource Advisory Committees AGENCY: Forest Service, USDA. ACTION: Call for nominations for the Pacific Northwest Recreation Resource Advisory Committee. SUMMARY: The Secretary of Agriculture has established the Pacific Northwest Recreation Resource Advisory Committee (Recreation...

  4. Historical Doses from Tritiated Water and Tritiated Hydrogen Gas Released to the Atmosphere from Lawrence Livermore National Laboratory (LLNL). Part 2. LLNL Annual Site-specific Data, 1953 - 2005

    Energy Technology Data Exchange (ETDEWEB)

    Peterson, S

    2007-08-15

    Historical information about tritium released routinely and accidentally from all Livermore Site Lawrence Livermore National Laboratory (LLNL) facilities and from the Tritium Research Laboratory of Sandia National Laboratories/California (SNL/CA) between 1953 through 2005 has been compiled and summarized in this report. Facility-specific data (annual release rates and dilution factors) have been derived from the historical information. These facility-specific data are needed to calculate annual doses to a hypothetical site-wide maximally exposed individual from routine releases of tritiated water (HTO) and tritiated hydrogen gas (HT) to the atmosphere. Doses can also be calculated from observed air tritium concentrations, and mean annual values for one air tritium sampling location are presented. Other historical data relevant to a dose reconstruction (e.g., meteorological data, including absolute humidity and rainfall) are also presented. Sources of information are carefully referenced, and assumptions are documented. Uncertainty distributions have been estimated for all parameter values. Confidence in data post-1974 is high.

  5. Citizen Advisory Committees.

    Science.gov (United States)

    Miller, Leann R.

    This guide, describing community involvement through citizen advisory committees, is a summary of the literature on such committees. Its main concern is district committees created by school boards. Citations in the bibliography contain all points of view on committees and present many alternatives on most of the topics covered in the guide.…

  6. Fission product iodine during early Hanford-Site operations: Its production and behavior during fuel processing, off-gas treatment and release to the atmosphere

    Energy Technology Data Exchange (ETDEWEB)

    Burger, L.L.

    1991-05-01

    The Hanford Environmental Dose Reconstruction (HEDR) Project was established to estimate the radiological dose impact that Hanford Site operations may have made on the local and regional population. This impact is estimated by examining operations involving radioactive materials that were conducted at the Hanford Site from the startup of the first reactor in 1944 to the present. HEDR Project work is divided among several technical tasks. One of these tasks, Source Terms, is designed to develop quantitative estimates of all significant emissions of radionuclides by Hanford Site operations since 1944. Radiation doses can be estimated from these emissions by accounting for specific radionuclide transport conditions and population demography. This document provides technical information to assist in the evaluation of iodine releases. 115 refs., 5 figs., 3 tabs.

  7. Fission product iodine during early Hanford-Site operations: Its production and behavior during fuel processing, off-gas treatment and release to the atmosphere

    International Nuclear Information System (INIS)

    The Hanford Environmental Dose Reconstruction (HEDR) Project was established to estimate the radiological dose impact that Hanford Site operations may have made on the local and regional population. This impact is estimated by examining operations involving radioactive materials that were conducted at the Hanford Site from the startup of the first reactor in 1944 to the present. HEDR Project work is divided among several technical tasks. One of these tasks, Source Terms, is designed to develop quantitative estimates of all significant emissions of radionuclides by Hanford Site operations since 1944. Radiation doses can be estimated from these emissions by accounting for specific radionuclide transport conditions and population demography. This document provides technical information to assist in the evaluation of iodine releases. 115 refs., 5 figs., 3 tabs

  8. RECONSTRUCTION OF EXTERNAL DOSES TO OZYORSK RESIDENTS DUE TO ATMOSPHERIC RELEASES OF INERT RADIOACTIVE GASES FROM THE STACKS OF THE “MAYAK” PA REACTOR PLANT FROM 1948 TO 1989

    Energy Technology Data Exchange (ETDEWEB)

    Glagolenko, Y. V.; Drozhko, Evgeniy G.; Mokrov, Y.; Rovny, Sergey I.; Beregich, D. A.; Stukalov, Pavel M.; Ivanov, I. A.; Alexakhin, A. I.; Anspaugh, L. R.; Napier, Bruce A.

    2008-06-01

    The article provides the results of reconstruction of external doses to population due to atmospheric releases of inert radioactive gases of activation (41Ar) and fission origin (xenon and krypton isotopes) from the stacks of the “Mayak” PA industrial reactors from 1948 to 1989. Calculation of surface volumetric activities was performed using the RATCHET code. Dose estimate was obtained in a semi-infinite cloud approximation. It is demonstrated that more than 90% of external dose was accumulated from 1948 to 1956. It is established that, generally, the calculation results are in good agreement with archive instrument monitoring data on exposure dose rate and thermoluminescence dosimetry data. External effective doses to the residents of Ozyorsk obtained for different age groups of population with consideration of shielding properties of buildings and duration of time spent outdoors were estimated in the range from 16 to 23 mSv.

  9. SSRI'S and other antidepressant use during pregnancy and potential neonatal adverse effects: Impact of a public health advisory and subsequent reports in the news media

    NARCIS (Netherlands)

    Einarson, Adrienne; Schachtschneider, A.-M.; Halil, R.; Bollano, E.; Koren, G.

    2005-01-01

    Background: On Aug 9th 2004 Health Canada released an advisory, which followed a similar one from the FDA regarding the use of SSRI’s and other antidepressants during pregnancy and potential adverse effects on newborns. In neither advisory was it stated that women should discontinue their antidep

  10. 78 FR 70317 - Invasive Species Advisory Committee

    Science.gov (United States)

    2013-11-25

    ... Office of the Secretary Invasive Species Advisory Committee AGENCY: Office of the Secretary, Interior. ACTION: Notice of Public Meeting (via Teleconference) of the Invasive Species Advisory Committee. SUMMARY... Invasive Species Advisory Committee. The purpose of the Advisory Committee is to provide advice to...

  11. 76 FR 55079 - Homeland Security Advisory Council

    Science.gov (United States)

    2011-09-06

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... subject line of the message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department...

  12. 77 FR 26774 - Homeland Security Advisory Council

    Science.gov (United States)

    2012-05-07

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of partially closed federal advisory committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... number in the subject line of the message. Fax: (202) 282-9207. Mail: Homeland Security Advisory...

  13. 76 FR 58813 - Homeland Security Advisory Council

    Science.gov (United States)

    2011-09-22

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of open teleconference Federal Advisory Committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... message. Fax: (202) 282-9207 Mail: Homeland Security Advisory Council, Department of Homeland...

  14. 77 FR 59627 - Homeland Security Advisory Council

    Science.gov (United States)

    2012-09-28

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of open teleconference federal advisory committee meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... line of the message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department...

  15. 75 FR 26782 - Homeland Security Advisory Council

    Science.gov (United States)

    2010-05-12

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... (Homeland Security) Review Advisory Committee. DATE: The HSAC conference call will take place from 4 p.m....

  16. 75 FR 53707 - Homeland Security Advisory Council

    Science.gov (United States)

    2010-09-01

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will...: Homeland Security Advisory Council, Department of Homeland Security, Mailstop 0850, 245 Murray Lane,...

  17. 75 FR 59278 - Homeland Security Advisory Council

    Science.gov (United States)

    2010-09-27

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Closed Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will meet on... message. Fax: (202) 282-9207. Mail: Homeland Security Advisory Council, Department of Homeland...

  18. 78 FR 77443 - Electricity Advisory Committee

    Science.gov (United States)

    2013-12-23

    ... Electricity Advisory Committee AGENCY: Office of Electricity Delivery and Energy Reliability, Department of... Electricity Advisory Committee (EAC). The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat. 770.../oe/services/electricity-advisory-committee-eac . FOR FURTHER INFORMATION CONTACT: Matthew...

  19. 77 FR 2277 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2012-01-17

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... Advisory Board to discuss DIA operations and capabilities in support of current intelligence...

  20. 78 FR 295 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2013-01-03

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... the Advisory Board to discuss DIA operations and capabilities in support of current...

  1. 77 FR 62222 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2012-10-12

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... the Advisory Board to discuss DIA operations and capabilities in support of current...

  2. 76 FR 70425 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2011-11-14

    ... Office of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board... discussions of classified information relating to DIA's intelligence operations including its support to... Advisory Board to discuss DIA operations and capabilities in support of current intelligence...

  3. 76 FR 64122 - NASA Advisory Committee; Renewal of NASA's International Space Station Advisory Committee Charter

    Science.gov (United States)

    2011-10-17

    ... SPACE ADMINISTRATION NASA Advisory Committee; Renewal of NASA's International Space Station Advisory... and amendment of the Charter of the International Space Station Advisory Committee. SUMMARY: Pursuant... the National ] Aeronautics and Space Administration has determined that a renewal of the...

  4. 76 FR 52016 - NASA International Space Station Advisory Committee and the Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2011-08-19

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee and the Aerospace Safety... International Space Station Advisory Committee and the Aerospace Safety Advisory Panel. The purpose of this... consideration by NASA for Commercial Resupply Services for the International Space Station (ISS),...

  5. 75 FR 70004 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2010-11-16

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  6. 78 FR 39289 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2013-07-01

    ... From the Federal Register Online via the Government Publishing Office ] FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  7. 78 FR 21354 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2013-04-10

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  8. 76 FR 64348 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2011-10-18

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  9. 75 FR 20844 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2010-04-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  10. 77 FR 6113 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2012-02-07

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC's) Advisory Committee on Diversity for Communications in the Digital...

  11. 77 FR 57085 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2012-09-17

    ... From the Federal Register Online via the Government Publishing Office ] FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  12. 75 FR 60458 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2010-09-30

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  13. 75 FR 53694 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2010-09-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  14. 75 FR 6031 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2010-02-05

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital... Communications Commission's (FCC) Advisory Committee on Diversity for Communications in the Digital...

  15. 78 FR 28237 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-05-14

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Advisory Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory... Telecommunications Advisory Committee, National Protection and Programs Directorate, Department of Homeland...

  16. Joint Advisory Appeals Board

    CERN Multimedia

    2003-01-01

    The Joint Advisory Appeals Board was convened to examine the appeal lodged by Mr Poul Frandsen concerning his assimilation into the new career structure. As the appellant has not objected, the report of the Board and the final decision of the Director-General are brought to the notice of the personnel in accordance with Article R VI 1.20 of the Staff Regulations. The relevant documents will therefore be posted on the notice boards of the Administration Building (N° 60) from 13 to 24 January 2003. Human Resources Division Tel. 74128

  17. Joint Advisory Appeals Board

    CERN Multimedia

    2003-01-01

    The Joint Advisory Appeals Board was convened to examine the appeal lodged by Mr Aloïs Girardoz with regard to classification and advancement. As the appellant has not objected, the Board's report and the Director-General's decision will be brought to the notice of the personnel in accordance with Article R VI 1.20 of the Staff Regulations. The relevant documents will therefore be posted on the notice boards of the Administration Building (N° 60) from 15 to 29 August 2003. Human Resources Division Tel. 74128

  18. JOINT ADVISORY APPEALS BOARD

    CERN Multimedia

    Personnel Division

    1999-01-01

    The Joint Advisory Appeals Board was convened to examine the appeal lodged by Mr Joào Bento with regard to residential category. As the appellant has not objected, the recommendations of the Board and the final decision of the Director-General are brought to the notice of the personnel in accordance with Article RÊVIÊ1.20 of the Staff Regulations.The relevant documents will therefore be posted on the notice boards of the Administration Building (N¡ 60) from 29 October to 12 November 1999.Personnel DivisionTel. 74128

  19. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2008-01-01

    The Joint Advisory Appeals Board has examined the internal appeal lodged by a member of the personnel against the decision to grant him only a periodic one-step advancement for the 2006 reference year. The person concerned has not objected to the report of the Board and the final decision of the Director-General being brought to the attention of the members of the personnel. In application of Article R VI 1.18 of the Staff Regulations, these documents will therefore be posted on the notice board of the Main building (bldg. 500) from 1 September to 14 September 2008. Human Resources Department (73911)

  20. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2008-01-01

    The Joint Advisory Appeals Board has examined the internal appeal lodged by a member of the personnel against the decision to grant him only a periodic one-step advancement for the 2006 reference year. The person concerned has not objected to the report of the Board and the final decision of the Director-General being brought to the attention of the members of the personnel. In application of Article R VI 1.18 of the Staff Regulations, these documents will therefore be posted on the notice board of the Main Building (Bldg. 500) from 1 September to 14 September 2008. Human Resources Department (73911)

  1. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2007-01-01

    The Joint Advisory Appeals Board was convened to examine an internal appeal lodged by a member of the personnel with regard to the decision not to grant him an indefinite contract. The person concerned has requested that the report of the Board and the final decision of the Director-General be brought to the notice of the members of the personnel, in accordance with Article R VI 1.18 of the Staff Regulations. The relevant documents will therefore be posted on the notice board of the Main building (Bldg. 60) from 24 September to 7 October 2007. Human Resources Department

  2. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2008-01-01

    The Joint Advisory Appeals Board has examined the internal appeal lodged by a member of the personnel with regard to the decision not to grant him an indefinite contract. The person concerned has not objected to the report of the Board and the final decision of the Director-General being brought to the notice of the members of the personnel. In application of Article R VI 1.18 of the Staff Regulations, these documents will therefore be posted on the notice board of the Main Building (Bldg. 500) from 26 May to 6 June 2008. Human Resources Department (73911)

  3. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2008-01-01

    The Joint Advisory Appeals Board was convened to examine an internal appeal lodged by a member of the personnel with regard to the decision not to grant him an indefinite contract. The person concerned has not objected to the report of the Board and the final decision of the Director-General being brought to the notice of the members of the personnel, in accordance with Article R VI 1.18 of the Staff Regulations. These documents will therefore be posted on the notice board of the Main Building (Bldg. 60) from 21 January to 3 February 2008. Human Resources Department (73911)

  4. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2006-01-01

    The Joint Advisory Appeals Board was convened to examine an appeal lodged by a member of the personnel with regard to advancement. The person concerned has requested that the report of the Board and the final decision of the Director-General be brought to the notice of the personnel in accordance with Article R VI 1.20 of the Staff Regulations. The relevant documents will therefore be posted on the notice boards of the Administration Building (No. 60) from 24 March to 10 April 2006. Human Resources Department Tel. 74128

  5. Joint Advisory Appeals Board

    CERN Multimedia

    HR Department

    2008-01-01

    The Joint Advisory Appeals Board has examined the internal appeal lodged by a member of the personnel with regard to the decision not to award him a periodic one-step advancement for the 2006 reference year. The person concerned has not objected to the report of the Board and the final decision of the Director-General being brought to the notice of the members of the personnel. In application of Article R VI 1.18 of the Staff Regulations, these documents will therefore be posted on the notice board of the Main building (Bldg. 500) from 17 March to 30 March 2008. Human Resources Department Tel. 73911

  6. Joint Advisory Appeals Board

    CERN Multimedia

    2013-01-01

    The Joint Advisory Appeals Board has examined the internal appeal lodged by a former member of the personnel, a beneficiary of the CERN Pension Fund, against the calculation of his pension in the framework of the Progressive Retirement Programme.   The person concerned has not objected to the report of the Board and the final decision of the Director-General being brought to the attention of the members of the personnel. In application of Article R VI 1.18 of the Staff Regulations, these documents will therefore be available from 26 July to 11 August 2013 at the following link. HR Department Head Office

  7. 76 FR 3142 - Release of Exposure Draft Technical Bulletins; Accounting for Oil and Gas Resources and Federal...

    Science.gov (United States)

    2011-01-19

    ... From the Federal Register Online via the Government Publishing Office FEDERAL ACCOUNTING STANDARDS ADVISORY BOARD Release of Exposure Draft Technical Bulletins; Accounting for Oil and Gas Resources and Federal Natural Resources Other Than Oil and Gas AGENCY: Federal Accounting Standards Advisory...

  8. 76 FR 43330 - Notice of Release of the Exposure Draft of Technical Bulletin 2011-2, Extended Deferral of the...

    Science.gov (United States)

    2011-07-20

    ... From the Federal Register Online via the Government Publishing Office FEDERAL ACCOUNTING STANDARDS... the Effective Date of Technical Bulletin 2006-1 AGENCY: Federal Accounting Standards Advisory Board... given that the Federal Accounting Standards Advisory Board (FASAB) has released the Exposure Draft...

  9. Crash course in readers' advisory

    CERN Document Server

    Orr, Cynthia

    2014-01-01

    One of the key services librarians provide is helping readers find books they'll enjoy. This ""crash course"" will furnish you with the basic, practical information you need to excel at readers' advisory (RA) for adults and teens.

  10. 78 FR 60863 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Science.gov (United States)

    2013-10-02

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... Federal advisory committee meeting of the Threat Reduction Advisory Committee (``the Committee''). DATES...: Mr. William Hostyn, DoD, Defense Threat Reduction Agency/J2/5/8R-ACP, 8725 John J. Kingman Road,...

  11. 78 FR 29334 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Science.gov (United States)

    2013-05-20

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... advisory committee meeting of the Threat Reduction Advisory Committee (``the Committee''). DATES: Wednesday... Hostyn, DoD, Defense Threat Reduction Agency/J2/5/8R-ACP, 8725 John J. Kingman Road, MS 6201,...

  12. 77 FR 15751 - Meetings of the Local Government Advisory Committee and the Small Communities Advisory Subcommittee

    Science.gov (United States)

    2012-03-16

    ... AGENCY Meetings of the Local Government Advisory Committee and the Small Communities Advisory... requests for appearances requires it. The Local Government Advisory Committee (LGAC) will meet at EPA's...: Local Government Advisory Committee (LGAC) contact Frances Eargle at (202) 564-3115 or email at...

  13. 77 FR 2539 - Meetings of the Small Communities Advisory Subcommittee and the Local Government Advisory Committee

    Science.gov (United States)

    2012-01-18

    ... AGENCY Meetings of the Small Communities Advisory Subcommittee and the Local Government Advisory... if the number of requests for appearances requires it. The Local Government Advisory Committee (LGAC... at davis.catherinem@epa.gov . For the Local Government Advisory Committee (LGAC) contact...

  14. 75 FR 22754 - Federal Advisory Committee; Chief of Engineers Environmental Advisory Board; Charter Renewal

    Science.gov (United States)

    2010-04-30

    ... of the Secretary Federal Advisory Committee; Chief of Engineers Environmental Advisory Board; Charter... that it is renewing the charter for the Chief of Engineers Environmental Advisory Board (hereafter referred to as the Board). FOR FURTHER INFORMATION CONTACT: Jim Freeman, Deputy Advisory...

  15. 75 FR 22560 - Federal Advisory Committee; U.S. Air Force Scientific Advisory Board; Charter Renewal

    Science.gov (United States)

    2010-04-29

    ... of the Secretary Federal Advisory Committee; U.S. Air Force Scientific Advisory Board; Charter... that it is renewing the charter for the U.S. Air Force Scientific Advisory Board (hereafter referred to as the Board). FOR FURTHER INFORMATION CONTACT: Jim Freeman, Deputy Advisory Committee...

  16. Payload advisory panel recommendations

    Science.gov (United States)

    Moore, Berrien, III

    1991-01-01

    The Payload Advisory Panel proposes a restructured Earth Observing System (EOS) mission to address high-priority science and environmental policy issues in Earth System Science. These issues have been identified through studies conducted by the Intergovernmental Panel on Climate Change (IPCC), the United States Environmental Protection Agency (EPA), and the Committee on Earth and Environmental Sciences (CEES). The restructured EOS defers efforts to improve the understanding of the middle and upper stratosphere and solid earth geophysics. The strategy of the mission combines high priority new measurements with continuation of critical data sets begun by missions which precede EOS. Collaborative arrangements with international partners are an essential part of the program and additional arrangements are posed. The need for continuity in Earth observations and the urgency of environmental questions require launch of some EOS elements as soon as possible. They further require maintenance of the EOS objective of obtaining consistent 15-year measurement records.

  17. 75 FR 67351 - Environmental Management Advisory Board

    Science.gov (United States)

    2010-11-02

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of Open Teleconference. SUMMARY: This notice announces a teleconference of the Environmental Management Advisory Board (EMAB). The... is to provide the Assistant Secretary for Environmental Management (EM) with advice...

  18. 75 FR 51026 - Environmental Management Advisory Board

    Science.gov (United States)

    2010-08-18

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Environmental Management Advisory Board (EMAB). The Federal... Assistant Secretary for Environmental Management (EM) with advice and recommendations on corporate...

  19. 75 FR 9416 - Advisory Committee Information Hotline

    Science.gov (United States)

    2010-03-02

    ... OF THE COMMISSIONER Pediatric Advisory Committee 8732310001 Risk Communication Advisory Committee... 3014512396 Orthopaedic and Rehabilitation Devices Panel 3014512521 Radiological Devices Panel 3014512526...: February 24, 2010. Joanne Less, Acting Associate Commissioner for Special Medical Programs. BILLING...

  20. 75 FR 19608 - Recreation Resource Advisory Committees

    Science.gov (United States)

    2010-04-15

    ...; ] DEPARTMENT OF AGRICULTURE Forest Service Recreation Resource Advisory Committees AGENCY: Forest Service, USDA. ACTION: Call for nominations for the Pacific Northwest Recreation Resource Advisory Committees. SUMMARY: The Secretary of Agriculture has established the Pacific Northwest Recreation Resource...

  1. 78 FR 55064 - Solicitation for Members of the NOAA Science Advisory Board (SAB) Gulf Coast Ecosystem...

    Science.gov (United States)

    2013-09-09

    ... organizations conducting RESTORE-related science within the Gulf of Mexico. Members appointed to the RSPAWG will... organizations conducting RESTORE-related science within the Gulf of Mexico. RSPAWG will provide its findings and... National Oceanic and Atmospheric Administration Solicitation for Members of the NOAA Science Advisory...

  2. Assessment of impact of a severe accident at nuclear power plant of Angra dos Reis with release of radionuclides to the atmosphere; Avaliacao do impacto de um acidente severo na usina de Angra dos Reis com liberacao de radionuclideos para a atmosfera

    Energy Technology Data Exchange (ETDEWEB)

    Aguiar, Andre Silva de

    2015-07-01

    This study had as purpose the assess the impact of a severe accident, and also analyze the dispersion of {sup 131}I in the atmosphere, so that, through concentrating and inhaling dose of the plume, were possible to verify if the results are in accordance with the indicated data by the Plan of Emergency of the CNAAA regarding the Impact Zone and Control. This exercise was performed with the aid of an atmospheric model and a dispersion where to atmospheric modeling we used the data coupling WRF / CALMET and of dispersion, CALPUFF. The suggested accident consists of a Station Blackout at Nuclear Power of Angra (Unit 1), where through the total core involvement, will release 100% of the {sup 131}I to the atmosphere. The value of the total activity in the nucleus to this radionuclide is 7.44 x 1017 Bq, that is relative on the sixth day of burning. This activity will be released through the chimney at a rate in Bq/s in the scenario of 12, 24, 48 and 72 hours of release. Applying the model in the proposed scenario, it is verified that the plume has concentrations of the order of 1020 Bq/m³ and dose of about 108 Sv whose value is beyond of the presented by Eletronuclear in your current emergency plan. (author)

  3. 77 FR 4238 - Advisory Committee Management

    Science.gov (United States)

    2012-01-27

    ... Part 8 RIN 1400-AC64 Advisory Committee Management AGENCY: Department of State. ACTION: Final rule... establish uniform administrative guidelines and management controls for advisory committees established by... of Subjects in 22 CFR Part 8 Advisory Committee Management. Accordingly, under the authority of 22...

  4. 77 FR 15091 - Environmental Management Advisory Board

    Science.gov (United States)

    2012-03-14

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of Solicitation of Nominations for Appointment as a member of the Environmental Management Advisory Board. SUMMARY: In accordance... soliciting nominations for candidates to fill vacancies on the Environmental Management Advisory Board...

  5. 76 FR 21877 - Environmental Management Advisory Board

    Science.gov (United States)

    2011-04-19

    ... Environmental Management Advisory Board AGENCY: Department of Energy. ACTION: Notice of call for nominations for appointment to the Environmental Management Advisory Board. SUMMARY: This notice constitutes an open call to the public to submit nominations for membership on the Environmental Management Advisory Board....

  6. 77 FR 40032 - Methane Hydrate Advisory Committee

    Science.gov (United States)

    2012-07-06

    ... Methane Hydrate Advisory Committee AGENCY: Office of Fossil Energy, Department of Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee.... SUPPLEMENTARY INFORMATION: Purpose of the Committee: The purpose of the Methane Hydrate Advisory Committee is...

  7. 76 FR 30955 - Invasive Species Advisory Committee

    Science.gov (United States)

    2011-05-27

    ... Office of the Secretary Invasive Species Advisory Committee AGENCY: Office of the Secretary, Interior. ACTION: Notice of public meetings of the Invasive Species Advisory Committee. SUMMARY: Pursuant to the provisions of the Federal Advisory Committee Act, notice is hereby given of meetings of the Invasive...

  8. 75 FR 69698 - Invasive Species Advisory Committee

    Science.gov (United States)

    2010-11-15

    ... Office of the Secretary Invasive Species Advisory Committee AGENCY: Office of the Secretary, Interior. ACTION: Notice of public meetings of the Invasive Species Advisory Committee. SUMMARY: Pursuant to the provisions of the Federal Advisory Committee Act, notice is hereby given of meetings of the Invasive...

  9. 76 FR 68776 - Invasive Species Advisory Committee

    Science.gov (United States)

    2011-11-07

    ...Pursuant to the provisions of the Federal Advisory Committee Act, notice is hereby given of meetings of the Invasive Species Advisory Committee (ISAC). Comprised of 29 nonfederal invasive species experts and stakeholders from across the nation, the purpose of the Advisory Committee is to provide advice to the National Invasive Species Council, as authorized by Executive Order 13112, on a broad......

  10. 77 FR 23740 - Invasive Species Advisory Committee

    Science.gov (United States)

    2012-04-20

    ...Pursuant to the provisions of the Federal Advisory Committee Act, notice is hereby given of meetings of the Invasive Species Advisory Committee (ISAC). Comprised of 30 nonfederal invasive species experts and stakeholders from across the nation, the purpose of the Advisory Committee is to provide advice to the National Invasive Species Council, as authorized by Executive Order 13112, on a broad......

  11. 75 FR 38086 - Technology Advisory Committee Meeting

    Science.gov (United States)

    2010-07-01

    ... COMMISSION Technology Advisory Committee Meeting The Commodity Futures Trading Commission's (``Commission'') Technology Advisory Committee will conduct a meeting on Wednesday, July 14, 2010, beginning at 1 p.m. The...://www.cftc.gov . This will be the first meeting of the reestablished Technology Advisory...

  12. 77 FR 15737 - Technology Advisory Committee

    Science.gov (United States)

    2012-03-16

    ... COMMISSION Technology Advisory Committee AGENCY: Commodity Futures Trading Commission (``CFTC''). ACTION: Notice of meeting of Technology Advisory Committee. SUMMARY: The CFTC announces that on March 29, 2012, the CFTC's Technology Advisory Committee (``TAC'') will hold a public meeting at the CFTC's...

  13. 75 FR 20371 - Homeland Security Advisory Council

    Science.gov (United States)

    2010-04-19

    ... SECURITY Homeland Security Advisory Council AGENCY: The Office of Policy, DHS. ACTION: Notice of Open Teleconference Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Advisory Council (HSAC) will... . Include docket number in the subject line of the message. Fax: (202) 282-9207 Mail: Homeland...

  14. 76 FR 10577 - Electricity Advisory Committee Meeting

    Science.gov (United States)

    2011-02-25

    ... Electricity Advisory Committee Meeting AGENCY: Office of Electricity Delivery and Energy Reliability... reestablished Electricity Advisory Committee (EAC). The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat... of Electricity Delivery and Energy Reliability, U.S. Department of Energy, Forrestal Building,...

  15. 75 FR 61454 - Electricity Advisory Committee

    Science.gov (United States)

    2010-10-05

    ... Electricity Advisory Committee AGENCY: Department of Energy, Office of Electricity Delivery and Energy...-established DOE Electricity Advisory Committee. The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat...: David Meyer, Designated Federal Officer, Office of Electricity Delivery and Energy Reliability,...

  16. 78 FR 15928 - Forestry Research Advisory Council

    Science.gov (United States)

    2013-03-13

    ...; ] DEPARTMENT OF AGRICULTURE Office of the Secretary Forestry Research Advisory Council AGENCY: Forest Service...: The Department of Agriculture intends to re-establish the Forestry Research Advisory Council (Council... intends to re-establish the Forestry Research Advisory Council (FRAC). The Council, a statutory...

  17. 78 FR 30847 - Forestry Research Advisory Council

    Science.gov (United States)

    2013-05-23

    ... Forest Service Forestry Research Advisory Council AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Forestry Research Advisory Council will meet in Washington, DC, June 13 and 14, 2013. The... Apple, Designated Federal Officer, Forestry Research Advisory Council, USDA Forest Service Research...

  18. 78 FR 2950 - Forestry Research Advisory Council

    Science.gov (United States)

    2013-01-15

    ... Forest Service Forestry Research Advisory Council AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Forestry Research Advisory Council will meet in Washington, DC February 7-8, 2013. The... Apple, Designated Federal Officer, Forestry Research Advisory Council, USDA Forest Service Research...

  19. INGDOS: a conversational computer code to implement US Nuclear Regulatory Commission Regulatory Guide 1.109 models for estimation of annual doses from ingestion of atmospherically released radionuclides in foods

    International Nuclear Information System (INIS)

    INGDOS is a conversational FORTRAN IV program which utilizes models described in U.S. Nuclear Regulatory Commission Regulatory Guide 1.109 for calculating: (1) concentrations of airborne radionuclides in foods; and (2) annual doses to various organs of man from ingestion of foods contaminated by radionuclides released to the atmosphere. An exception to the implementation of models described in the Regulatory Guide is the adoption of other previously described models for estimation of doses for 3H and 14C. An on-line data base provides default values for most of the parameters required in the calculation of these quantities. In most cases the program allows the user to change any of these values for a particular run. With the exception of 3H and 14C, the calculation of nuclide concentrations in and on vegetation at a given location is based on the rate of deposition of the nuclide at the given location, which is the product of the ground-level air concentration and the deposition velocity of the nuclide. The last two quantities must be supplied by the user of the code for each nuclide other than 3H or 14C involved in the run. As output from INGDOS, the user may have any (or all) of 11 tables printed which specify nuclide concentrations and annual organ doses via various pathways as well as certain ratios involving these quantities. The models for calculating nuclide concentrations and organ doses are discussed, and information is provided concerning the use of the code and its data base

  20. Is bioexsiccation releasing dioxins?

    Energy Technology Data Exchange (ETDEWEB)

    Benfenati, E.; Mariani, G.; Lodi, M.; Reitano, G.; Fanelli, R. [' ' Mario Negri' ' Institute for Pharmacological Research, Milan (Italy)

    2004-09-15

    Bioexsiccation is a relatively new process to treat urban solid wastes. We studied the possible release of dioxins from this process, measuring dioxin concentration in the emissions from a bioexsiccation plant. As a comparison, we measured atmospheric levels nearby the plant. The biofilter treating gaseous emissions was also evaluated to assess its efficiency. Dioxin concentrations in the biofilter effluent were lower than both those before the biofilter and the nearby atmosphere. In the last years the management and treatment of solid urban wastes produced some improved processes, in a general attempt to cope with the problem of the huge amount of wastes produced by the modern society. Bio-exsiccation of waste aims at affording a much more biologically inert and manageable material compared to the original waste. In this process the urban solid waste is kept under an air stream for about two weeks. The waste undergoes biological transformation, due to fermentation, which produces an increase of the temperature up to 60-70 C. At the end of the process the weight waste is typically reduced by one third, due to the loss of water and to the degradation of putrescible compounds. Since this is a relatively new industrial process, we studied the possible release of dioxins in the atmospheric emissions of the bioexsiccation plant.

  1. 76 FR 37312 - Fruit and Vegetable Industry Advisory Committee

    Science.gov (United States)

    2011-06-27

    ...; ] DEPARTMENT OF AGRICULTURE Agricultural Marketing Service Fruit and Vegetable Industry Advisory Committee... Agriculture (USDA) Fruit and Vegetable Industry Advisory Committee and a Request for Nominations. SUMMARY: The USDA intends to reestablish the Fruit and Vegetable Industry Advisory Committee (Committee)....

  2. 78 FR 9724 - Invasive Species Advisory Committee; Meetings

    Science.gov (United States)

    2013-02-11

    ... Office of the Secretary Invasive Species Advisory Committee; Meetings AGENCY: Office of the Secretary, Interior. ACTION: Notice of public meetings of the Invasive Species Advisory Committee. SUMMARY: Pursuant... Invasive Species Advisory Committee (ISAC). Comprised of 31 nonfederal invasive species experts...

  3. 78 FR 45255 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-07-26

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... INFORMATION: Notice of this meeting is given under the Federal Advisory Committee Act (FACA), 5 U.S.C....

  4. 77 FR 23494 - Invasive Species Advisory Committee; Request for Nominations

    Science.gov (United States)

    2012-04-19

    ... Invasive Species Advisory Committee; Request for Nominations AGENCY: Office of the Secretary, National Invasive Species Council. ACTION: Request for Nominations for the Invasive Species Advisory Committee....gov . SUPPLEMENTARY INFORMATION: Advisory Committee Scope and Objectives The purpose and role of...

  5. 76 FR 16434 - Merchant Marine Personnel Advisory Committee

    Science.gov (United States)

    2011-03-23

    ... SECURITY Coast Guard Merchant Marine Personnel Advisory Committee AGENCY: Coast Guard, DHS. ACTION... determined that the establishment of the Merchant Marine Personnel Advisory Committee (MERPAC) is necessary... of Committee: Merchant Marine Personnel Advisory Committee. ADDRESSES: If you desire to...

  6. 12 CFR 7.2004 - Honorary directors or advisory boards.

    Science.gov (United States)

    2010-01-01

    ... appoint honorary or advisory members of a board of directors to act in advisory capacities without voting... or advisory directors must distinguish between them and the bank's board of directors or...

  7. 76 FR 24505 - Great Lakes Pilotage Advisory Committee

    Science.gov (United States)

    2011-05-02

    ... SECURITY Coast Guard Great Lakes Pilotage Advisory Committee AGENCY: Coast Guard, DHS. ACTION: Committee Management; Notice of Federal Advisory Committee Meeting. SUMMARY: The Great Lakes Pilotage Advisory... Great Lakes pilot registration, operating requirements, training policies, and pilotage rates and...

  8. 78 FR 53497 - Commercial Space Transportation Advisory Committee; Closed Session

    Science.gov (United States)

    2013-08-29

    ... Federal Aviation Administration Commercial Space Transportation Advisory Committee; Closed Session AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Commercial Space Transportation Advisory... closed session of the Commercial Space Transportation Advisory Committee (COMSTAC). The special...

  9. 75 FR 3913 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-01-25

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee...: The President's National Security Telecommunications Advisory Committee (NSTAC) will be meeting by... telecommunications policy. Notice of this meeting is given under the Federal Advisory Committee Act (FACA),...

  10. 75 FR 29781 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-05-27

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee... meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC) will be... preparedness telecommunications policy. Notice of this meeting is given under the Federal Advisory...

  11. 76 FR 43988 - National Technical Information Service Advisory Board

    Science.gov (United States)

    2011-07-22

    ... National Technical Information Service National Technical Information Service Advisory Board AGENCY: National Technical Information Service, Commerce. ACTION: Notice of open meeting. SUMMARY: This notice announces the next meeting of the National Technical Information Service Advisory Board (the Advisory...

  12. 78 FR 61337 - National Technical Information Service Advisory Board

    Science.gov (United States)

    2013-10-03

    ... National Technical Information Service National Technical Information Service Advisory Board AGENCY: National Technical Information Service, Commerce. ACTION: Notice of open meeting SUMMARY: This notice announces the next meeting of the National Technical Information Service Advisory Board (the Advisory...

  13. 78 FR 16255 - National Technical Information Service Advisory Board

    Science.gov (United States)

    2013-03-14

    ... National Technical Information Service National Technical Information Service Advisory Board AGENCY: National Technical Information Service, Commerce. ACTION: Notice of Open Meeting. SUMMARY: This notice announces the next meeting of the National Technical Information Service Advisory Board (the Advisory...

  14. 77 FR 779 - National Technical Information Service Advisory Board

    Science.gov (United States)

    2012-01-06

    ... National Technical Information Service National Technical Information Service Advisory Board AGENCY: National Technical Information Service, Commerce. ACTION: Notice of open meeting. SUMMARY: This notice announces the next meeting of the National Technical Information Service Advisory Board (the Advisory...

  15. 76 FR 2348 - National Technical Information Service Advisory Board

    Science.gov (United States)

    2011-01-13

    ... National Technical Information Service National Technical Information Service Advisory Board AGENCY: National Technical Information Service, Commerce. ACTION: Notice of open meeting. SUMMARY: This notice announces the next meeting of the National Technical Information Service Advisory Board (the Advisory...

  16. 77 FR 57559 - National Technical Information Service Advisory Board

    Science.gov (United States)

    2012-09-18

    ... National Technical Information Service National Technical Information Service Advisory Board AGENCY: National Technical Information Service, Commerce. ACTION: Notice of open meeting. SUMMARY: This notice announces the next meeting of the National Technical Information Service Advisory Board (the Advisory...

  17. Serving Boys through Readers' Advisory

    Science.gov (United States)

    Sullivan, Michael

    2010-01-01

    Based on more than twenty years' experience working to get boys interested in reading, the author now offers his first readers' advisory volume. With an emphasis on nonfiction and the boy-friendly categories of genre fiction, the work offers a wealth of material including: (1) Suggestions for how to booktalk one-on-one as well as in large groups;…

  18. ITER management advisory committee meeting

    International Nuclear Information System (INIS)

    The ITER Management Advisory Committee (MAC) Meeting was held in Vienna on 16 July 2001. It was the last MAC Meeting and the main topics were consideration of the report by the Director on the ITER EDA status, review of the Work Programme, review of the Joint Fund and arrangements for termination and wind-up of the EDA

  19. 78 FR 11142 - The National Advisory Council on Innovation and Entrepreneurship Meeting of the National Advisory...

    Science.gov (United States)

    2013-02-15

    ... Economic Development Administration The National Advisory Council on Innovation and Entrepreneurship Meeting of the National Advisory Council on Innovation and Entrepreneurship AGENCY: U.S. Department of... Innovation and Entrepreneurship (NACIE) has cancelled its open meeting, originally planned for...

  20. 76 FR 5160 - Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital...

    Science.gov (United States)

    2011-01-28

    ... From the Federal Register Online via the Government Publishing Office FEDERAL COMMUNICATIONS COMMISSION Federal Advisory Committee Act; Advisory Committee on Diversity for Communications in the Digital Age AGENCY: Federal Communications Commission. ACTION: Notice of intent to renew charter. SUMMARY:...

  1. Atmospheric transport of radionuclides

    International Nuclear Information System (INIS)

    The chairman and contributors are members of the Working Group on Atmospheric Dispersion, Deposition, and Resuspension. This group examined the mathematical approaches for determining the direct and indirect pathways to man of releases of pollutants to the atmosphere. The dose-to-man limitations promulgated by the Nuclear Regulatory Commission, the Environmental Protection Agency, and the Energy Research and Development Administration were presented. The present status of research was discussed, and recommendations for future work were made. Particular emphasis was placed on the need for additional experimental work to develop confidence limits leading to acceptable probability statements of critical pathways for determining the dose-to-man

  2. 78 FR 64941 - Government-Wide Travel Advisory Committee (GTAC); Public Advisory Committee Meetings

    Science.gov (United States)

    2013-10-30

    ... GTAC November 7, 2013 meeting originally published in the Federal Register at 78 FR 56231 on September... ADMINISTRATION Government-Wide Travel Advisory Committee (GTAC); Public Advisory Committee Meetings AGENCY..., Designated Federal Officer (DFO), Government-wide Travel ] Advisory Committee (GTAC), Office of...

  3. 76 FR 52319 - Federal Advisory Committee Meeting Notice; Threat Reduction Advisory Committee

    Science.gov (United States)

    2011-08-22

    ... Federal Advisory Committee Meeting Notice; Threat Reduction Advisory Committee AGENCY: Office of the Under... Department of Defense announces the following Federal advisory committee meeting of the Threat Reduction..., Lorton, VA 22079. ] FOR FURTHER INFORMATION CONTACT: Mr. William Hostyn, Defense Threat Reduction...

  4. 77 FR 2710 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Science.gov (United States)

    2012-01-19

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... of the Threat Reduction Advisory Committee (hereafter referred to as ``the Committee''). DATES..., DoD, Defense Threat Reduction Agency/SP-ACP, 8725 John J. Kingman Road, MS 6201, Fort Belvoir,...

  5. 77 FR 19006 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Science.gov (United States)

    2012-03-29

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... the Threat Reduction Advisory Committee (hereafter referred to as ``the Committee''). DATES: Tuesday... Threat Reduction Agency/SP-ACP, 8725 John J. Kingman Road, MS 6201, Fort Belvoir, VA 22060-6201....

  6. 77 FR 50088 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Science.gov (United States)

    2012-08-20

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... committee meeting of the Threat Reduction Advisory Committee (hereafter referred to as ``the Committee.... William Hostyn, GS-15, DoD, Defense Threat Reduction Agency/J2/5/8R, 8725 John J. Kingman Road, MS...

  7. 77 FR 69807 - Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting

    Science.gov (United States)

    2012-11-21

    ... of the Secretary Threat Reduction Advisory Committee; Notice of Federal Advisory Committee Meeting... committee meeting of the Threat Reduction Advisory Committee (hereafter referred to as ``the Committee... Hostyn, DoD, Defense Threat Reduction Agency/J2/5/8R-ACP, 8725 John J. Kingman Road, MS 6201,...

  8. 77 FR 18797 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2012-03-28

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... intelligence operations. Agenda May 2, 2012 S 8:30 a.m Convene Advisory Board Meeting Mr. William...

  9. 75 FR 43493 - Office of the Secretary; Federal Advisory Committee; Defense Intelligence Agency Advisory Board...

    Science.gov (United States)

    2010-07-26

    ... of the Secretary; Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting AGENCY: Defense Intelligence Agency, DOD. ACTION: Meeting notice. SUMMARY: Under the provisions of... that Defense Intelligence Agency Advisory Board will meet on September 1 and 2, 2010. The meeting...

  10. 75 FR 81245 - Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting

    Science.gov (United States)

    2010-12-27

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting AGENCY: Defense Intelligence Agency, DoD. ACTION: Notice. SUMMARY: Under the provisions of the... Defense Intelligence Agency Advisory Board and two of its subcommittees will meet on January 26 and...

  11. 76 FR 41220 - Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting

    Science.gov (United States)

    2011-07-13

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting AGENCY: Defense Intelligence Agency, DoD. ACTION: Meeting notice. SUMMARY: Under the provisions of... that Defense Intelligence Agency Advisory Board and two of its subcommittees will meet on August 4...

  12. 75 FR 24926 - Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting

    Science.gov (United States)

    2010-05-06

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting AGENCY: Defense Intelligence Agency, DoD. ACTION: Meeting notice. SUMMARY: Under the provisions of... that Defense Intelligence Agency Advisory Board, and its subcommittees, will meet on June 15 and...

  13. 76 FR 53671 - Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting

    Science.gov (United States)

    2011-08-29

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency Advisory Board; Closed Meeting AGENCY: Defense Intelligence Agency (DIA), Department of Defense (DoD). ACTION: Meeting notice... Department of Defense announces that Defense Intelligence Agency Advisory Board and two of its...

  14. 77 FR 41403 - Meetings of the Local Government Advisory Committee and the Small Communities Advisory...

    Science.gov (United States)

    2012-07-13

    ... AGENCY Meetings of the Local Government Advisory Committee and the Small Communities Advisory.../or Title VI, and other environmental issues of importance to local governments. ADDRESSES: EPA's Local Government Advisory Committee meetings will be held via teleconference. Meeting summaries will...

  15. 78 FR 17993 - Request for Nominations for the General Advisory Committee and the Scientific Advisory...

    Science.gov (United States)

    2013-03-25

    ...-American Tropical Tuna Commission (IATTC) as well as to a Scientific Advisory Subcommittee of the General... for Nominations for the General Advisory Committee and the Scientific Advisory Subcommittee to the United States Section to the Inter-American Tropical Tuna Commission SUMMARY: The Department of State...

  16. Staging atmospheres

    DEFF Research Database (Denmark)

    Bille, Mikkel; Bjerregaard, Peter; Sørensen, Tim Flohr

    2015-01-01

    The article introduces the special issue on staging atmospheres by surveying the philosophical, political and anthropological literature on atmosphere, and explores the relationship between atmosphere, material culture, subjectivity and affect. Atmosphere seems to occupy one of the classic...... localities of tensions between matter and the immaterial, the practical and the ideal, and subject and object. In the colloquial language there can, moreover, often seem to be something authentic or genuine about atmosphere, juxtaposing it to staging, which is implied to be something simulated or artificial....... This introduction seeks to outline how a number of scholars have addressed the relationship between staged atmospheres and experience, and thus highlight both the philosophical, social and political aspects of atmospheres...

  17. 77 FR 62621 - Advisory Committee Charter Renewals

    Science.gov (United States)

    2012-10-15

    ... missions of the Departments of Defense and Homeland Security). Geriatrics and Gerontology Advisory... geriatrics and gerontology by assessing the capability of VA health care facilities to meet the...

  18. Afghanistan; Joint Staff Advisory Note

    OpenAIRE

    International Monetary Fund

    2010-01-01

    This Joint Staff Advisory Note discusses Afghanistan’s Poverty Reduction Strategy Paper's annual progress report. Afghanistan has experienced a number of extraordinary challenges that delayed its implementation. The security situation deteriorated markedly and has been dominated by the cross-border Taliban insurgency. Growth started to recover from a devastating drought. In May 2008, food and fuel prices peaked, leading to high inflation and pressure on the budget for additional fuel and fo...

  19. Exoplanet Atmospheres

    CERN Document Server

    Seager, S

    2010-01-01

    At the dawn of the first discovery of exoplanets orbiting sun-like stars in the mid-1990s, few believed that observations of exoplanet atmospheres would ever be possible. After the 2002 Hubble Space Telescope detection of a transiting exoplanet atmosphere, many skeptics discounted it as a one-object, one-method success. Nevertheless, the field is now firmly established, with over two dozen exoplanet atmospheres observed today. Hot Jupiters are the type of exoplanet currently most amenable to study. Highlights include: detection of molecular spectral features; observation of day-night temperature gradients; and constraints on vertical atmospheric structure. Atmospheres of giant planets far from their host stars are also being studied with direct imaging. The ultimate exoplanet goal is to answer the enigmatic and ancient question, "Are we alone?" via detection of atmospheric biosignatures. Two exciting prospects are the immediate focus on transiting super Earths orbiting in the habitable zone of M-dwarfs, and u...

  20. Atmospheric Neutrinos

    OpenAIRE

    Takaaki Kajita

    2012-01-01

    Atmospheric neutrinos are produced as decay products in hadronic showers resulting from collisions of cosmic rays with nuclei in the atmosphere. Electron-neutrinos and muon-neutrinos are produced mainly by the decay chain of charged pions to muons to electrons. Atmospheric neutrino experiments observed zenith angle and energy-dependent deficit of muon-neutrino events. It was found that neutrino oscillations between muon-neutrinos and tau-neutrinos explain these data well. This paper discusses...

  1. Articulating Atmospheres

    DEFF Research Database (Denmark)

    Kinch, Sofie

    2011-01-01

    This paper presents an architectural approach to designing computational interfaces by articulating the notion of atmosphere in the field of interaction design. It draws upon the concept of kinesthetic interaction and a philosophical notion on atmosphere emphasizing the importance of bodily...... experience in space, presented as middle ground experience. In the field of HCI, middle ground experiences complete the unarticulated spectrum between designing for foreground of attention or background awareness. When “Articulating Atmospheres through Middle Ground Experiences in Interaction Design...

  2. Methane release

    International Nuclear Information System (INIS)

    The Swiss Gas Industry has carried out a systematic, technical estimate of methane release from the complete supply chain from production to consumption for the years 1992/1993. The result of this survey provided a conservative value, amounting to 0.9% of the Swiss domestic output. A continuation of the study taking into account new findings with regard to emission factors and the effect of the climate is now available, which provides a value of 0.8% for the target year of 1996. These results show that the renovation of the network has brought about lower losses in the local gas supplies, particularly for the grey cast iron pipelines. (author)

  3. Pluto's atmosphere

    International Nuclear Information System (INIS)

    Airborne CCD photometer observations of Pluto's June 9, 1988 stellar occultation have yielded an occultation lightcurve, probing two regions on the sunrise limb 2000 km apart, which reveals an upper atmosphere overlying an extinction layer with an abrupt upper boundary. The extinction layer may surround the entire planet. Attention is given to a model atmosphere whose occultation lightcurve closely duplicates observations; fits of the model to the immersion and emersion lightcurves exhibit no significant derived atmosphere-structure differences. Assuming a pure methane atmosphere, surface pressures of the order of 3 microbars are consistent with the occultation data. 43 references

  4. Atmospheric electricity

    CERN Document Server

    Chalmers, J Alan

    1957-01-01

    Atmospheric Electricity brings together numerous studies on various aspects of atmospheric electricity. This book is composed of 13 chapters that cover the main problems in the field, including the maintenance of the negative charge on the earth and the origin of the charges in thunderstorms. After a brief overview of the historical developments of atmospheric electricity, this book goes on dealing with the general principles, results, methods, and the MKS system of the field. The succeeding chapters are devoted to some aspects of electricity in the atmosphere, such as the occurrence and d

  5. Working with Advisory Committees . . . Promising Practices. Operations Notebook 16.

    Science.gov (United States)

    Olivero, James L.

    This publication is intended to aid school-level educational administrators in working with citizen advisory committees. After a brief discussion of the rationale for advisory committees, it focuses in turn on 1) functions of advisory committees, 2) ways to determine philosophical positions of agreement and disagreement among advisory committee…

  6. 78 FR 70954 - Risk Communications Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2013-11-27

    ... the free Webcast. Visit the Risk Communication Advisory Committee Web site at http://www.fda.gov/AdvisoryCommittees/CommitteesMeetingMaterials/RiskCommunicationAdvisoryCommittee/default.htm . The link... HUMAN SERVICES Food and Drug Administration Risk Communications Advisory Committee; Notice of...

  7. 76 FR 65750 - Aerospace Safety Advisory Panel; Charter Renewal

    Science.gov (United States)

    2011-10-24

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Charter Renewal AGENCY: National Aeronautics and... Aerospace Safety Advisory Panel. SUMMARY: Pursuant to sections 14(b)(1) and 9(c) of the Federal Advisory... of the NASA Aerospace Safety Advisory Panel is in the public interest in connection with...

  8. IMPACT: Virginia Potato Disease Advisory Impact

    OpenAIRE

    Herbert, D. Ames (David Ames), 1949-; Long, Theresa; Deitch, Ursula T.; Laub, Curtis A., 1955-; Rideout, Steven Lewis; Moore, David; Tucker, Lindy; Archibald, Tom

    2014-01-01

    To help potato growers more efficiently manage disease problems, Virginia Cooperative Extension initiated the Virginia Potato Disease Advisory to provide growers with weather-based disease forecast information. Advisories not only alert growers to periods of risk, they also assist growers in making management decisions, such as when protective fungicide applications are needed.

  9. 78 FR 54680 - NASA Federal Advisory Committees

    Science.gov (United States)

    2013-09-05

    ...- ] nominations for consideration as potential members of NASA's Federal advisory committees. NASA's Federal..., experience, and current/past contributions to the relevant subject area. DATES: The deadline for NASA receipt... specific NASA Federal advisory committee of interest for NASA consideration. Nominations and...

  10. 77 FR 4556 - Environmental Management Advisory Board

    Science.gov (United States)

    2012-01-30

    ... Environmental Management Advisory Board AGENCY: Office of Environmental Management, Department of Energy. ACTION... hereby given that the Environmental Management Advisory Board will be renewed for a two-year period... Environmental Management (EM) on a broad range of corporate issues affecting the EM program. These...

  11. 78 FR 37536 - Methane Hydrate Advisory Committee

    Science.gov (United States)

    2013-06-21

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Methane... meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. The Federal... of the Methane Hydrate Advisory Committee is to provide advice on potential applications of...

  12. 76 FR 59667 - Methane Hydrate Advisory Committee

    Science.gov (United States)

    2011-09-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Methane... Meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. Federal... of the Committee: The purpose of the Methane Hydrate Advisory Committee is to provide advice...

  13. 78 FR 26337 - Methane Hydrate Advisory Committee

    Science.gov (United States)

    2013-05-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Methane... Meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. The Federal... of the Methane Hydrate Advisory Committee is to provide advice on potential applications of...

  14. 75 FR 9886 - Methane Hydrate Advisory Committee

    Science.gov (United States)

    2010-03-04

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Methane... meeting. SUMMARY: This notice announces a meeting of the Methane Hydrate Advisory Committee. Federal... Methane Hydrate Advisory Committee is to provide advice on potential applications of methane hydrate...

  15. A Look at Citizen Advisory Committees.

    Science.gov (United States)

    Baker, Ronald E.; Ostertag, Bruce A.

    This overview of citizens advisory committees examines their history in public schools and school systems, different types of committees, their roles and functions, and the problems that accompany them. The history of advisory committees is covered from the 1940s on, with an emphasis on their expansion in the 1960s under the impetus of the civil…

  16. Impact of Technology and Innovation Advisory Services

    OpenAIRE

    Shapira P., & Youtie J.

    2014-01-01

    This report identifies and reviews literature that evaluates the impacts of technology and innovation advisory services. These services provide information, technical assistance, consulting, mentoring, and other services to support enterprises in adopting and deploying new technologies and in commercialising innovations. Examples include the: Manufacturing Advisory Service (UK), the Manufacturing Extension Partnership (USA), and the Industrial Research Assistance Program (Canada). Technology ...

  17. 77 FR 50460 - Cherokee Resource Advisory Committee

    Science.gov (United States)

    2012-08-21

    ... Forest Service Cherokee Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Cherokee Resource Advisory Committee will meet in Knoxville, Tennessee. The... Coordinator, Cherokee National Forest, 423-476-9729, twmcdonald@fs.fed.us . Individuals who...

  18. 78 FR 70987 - Proxy Advisory Firm Roundtable

    Science.gov (United States)

    2013-11-27

    ...The Securities and Exchange Commission will host a roundtable about proxy advisory firms. The panel will be asked to discuss topics including the current state of proxy advisory firm use by investment advisers and institutional investors and potential changes that have been suggested by market participants. Panelists will also be invited to discuss any new ideas. The roundtable discussion will......

  19. 78 FR 61348 - Electricity Advisory Committee

    Science.gov (United States)

    2013-10-03

    ... Electricity Advisory Committee AGENCY: Department of Energy. ACTION: Notice of Cancellation of Open Meeting. SUMMARY: On September 11, 2013, in FR Doc. 2013-22119, on pages 55692- 55693, the Department of Energy... Advisory Committee (78 FR 55692). This notice announces the cancellation of this meeting. FOR...

  20. 77 FR 49441 - Electricity Advisory Committee

    Science.gov (United States)

    2012-08-16

    ... Electricity Advisory Committee AGENCY: Office of Electricity Delivery and Energy Reliability, Department of... that the Electricity Advisory ] Committee's (EAC) charter has been renewed for a two-year period... Secretary for Electricity Delivery and Energy Reliability on programs to modernize the Nation's...

  1. 76 FR 3677 - Arts Advisory Panel

    Science.gov (United States)

    2011-01-20

    ... ARTS AND THE HUMANITIES National Endowment for the Arts Arts Advisory Panel Pursuant to Section 10(a)(2... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy Hanks..., discussion, evaluation, and recommendations on financial assistance under the National Foundation on the...

  2. 78 FR 59978 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-09-30

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  3. 76 FR 23845 - Arts Advisory Panel

    Science.gov (United States)

    2011-04-28

    ... ARTS AND THE HUMANITIES National Endowment for the Arts Arts Advisory Panel Pursuant to Section 10(a)(2... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy Hanks..., evaluation, and recommendations on financial assistance under the National Foundation on the Arts and...

  4. 77 FR 13154 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2012-03-05

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice--meeting. Pursuant to Section 10(a)(2) of the Federal Advisory Committee Act (Pub. L. 92-463), as amended, notice is hereby given that a meeting of the...

  5. 77 FR 61643 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2012-10-10

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meetings of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  6. 78 FR 21978 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-04-12

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  7. 78 FR 42982 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-07-18

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of Meetings SUMMARY: Pursuant to Section 10(a)(2) of... the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy Hanks...

  8. 75 FR 56146 - Arts Advisory Panel; Meetings

    Science.gov (United States)

    2010-09-15

    ... ARTS AND THE HUMANITIES National Endowment for the Arts Arts Advisory Panel; Meetings Pursuant to... given that four meetings of the Arts Advisory Panel to the National Council on the Arts will be held at... are approximate): Arts Education (application review): October 4-5, 2010 in Room 716. A portion...

  9. 76 FR 50499 - Arts Advisory Panel

    Science.gov (United States)

    2011-08-15

    ... ARTS AND THE HUMANITIES National Endowment for the Arts Arts Advisory Panel Pursuant to Section 10(a)(2... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy Hanks... financial assistance under the National Foundation on the Arts and the Humanities Act of 1965, as...

  10. 78 FR 26399 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-05-06

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of Meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meeting of the Arts Advisory Panel to the National Council on the Arts will be held by teleconference...

  11. 77 FR 49026 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2012-08-15

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  12. 75 FR 27825 - Arts Advisory Panel

    Science.gov (United States)

    2010-05-18

    ... ARTS AND THE HUMANITIES National Endowment for the Arts Arts Advisory Panel Pursuant to Section 10(a)(2... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy Hanks... financial assistance under the National Foundation on the Arts and the Humanities Act of 1965, as...

  13. 78 FR 50451 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-08-19

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of Meetings. SUMMARY: Pursuant to Section 10(a)(2) of... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  14. 77 FR 13367 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2012-03-06

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... of the Arts Advisory Panel to the National Council on the Arts will be held by teleconference at...

  15. 78 FR 17942 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-03-25

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meetings. SUMMARY: Pursuant to Section 10(a)(2) of... meetings of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  16. 78 FR 5213 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2013-01-24

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meeting of the Arts Advisory Panel to the National Council on the Arts will be held at the Nancy...

  17. 77 FR 56875 - Arts Advisory Panel Meeting

    Science.gov (United States)

    2012-09-14

    ... ARTS AND THE HUMANITIES Arts Advisory Panel Meeting AGENCY: National Endowment for the Arts, National Foundation on the Arts and Humanities. ACTION: Notice of meeting. SUMMARY: Pursuant to Section 10(a)(2) of... meetings of the Arts Advisory Panel to the National Council on the Arts will be held by teleconference...

  18. 77 FR 74661 - Open Internet Advisory Committee

    Science.gov (United States)

    2012-12-17

    ... Internet at http://www.fcc.gov/events/open-internet-advisory-committee . Federal Communications Commission... COMMISSION Open Internet Advisory Committee AGENCY: Federal Communications Commission. ACTION: Notice. SUMMARY: The Commission announces the next meeting date, time, and agenda of the Open Internet...

  19. 75 FR 7255 - Army Educational Advisory Committee

    Science.gov (United States)

    2010-02-18

    ... Department of the Army Army Educational Advisory Committee AGENCY: Department of the Army, DoD. ACTION... CFR 102-3.150, the following meeting notice is announced: Name of Committee: U.S. Army War College Subcommittee of the Army Education Advisory Committee. Date of Meeting: March 11, 2010. Place of Meeting:...

  20. 75 FR 60145 - PNT Advisory Board; Meeting

    Science.gov (United States)

    2010-09-29

    ... SPACE ADMINISTRATION PNT Advisory Board; Meeting AGENCY: National Aeronautics and Space Administration. ACTION: Notice of Meeting. SUMMARY: In accordance with the Federal Advisory Committee Act, Public Law 92-463, as amended, the National Aeronautics and Space Administration announces a meeting of the...

  1. 75 FR 61774 - Advisory Board Meeting

    Science.gov (United States)

    2010-10-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE National Institute of Corrections Advisory Board Meeting Time and Date: 8 a.m. to 4:30 p.m. on Monday... Considered: Welcome New Advisory Board Members; NIC Orientation; Briefing on NIC Reports; Agency...

  2. 77 FR 13634 - Advisory Board Meeting

    Science.gov (United States)

    2012-03-07

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE National Institute of Corrections Advisory Board Meeting Time and Date: 8 a.m.-4:30 p.m. on Monday, April... outcomes of November 2-3, 2011 Advisory Board Hearing (Shifting the Focus to Reshape Our Thinking...

  3. 77 FR 14425 - Advisory Board Meeting

    Science.gov (United States)

    2012-03-09

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE National Institute of Corrections Advisory Board Meeting Time and Date: 8 AM-4:30 PM on Monday, April 02... November 2-3, 2011 Advisory Board Hearing (Shifting the Focus to Reshape Our Thinking Toward...

  4. 77 FR 69503 - Advisory Board Meeting

    Science.gov (United States)

    2012-11-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE National Institute of Corrections Advisory Board Meeting TIME AND DATE: 8:00 a.m.-4:30 p.m. on Monday...; review of outcomes of August 22-23, 2012 Advisory Board Hearing (Balancing Fiscal Challenges,...

  5. 75 FR 13269 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2010-03-19

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Department of Energy, Office of Nuclear Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Nuclear Energy Advisory Committee (NEAC)....

  6. 75 FR 67351 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2010-11-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Office of Nuclear Energy, Department of Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Nuclear Energy Advisory Committee (NEAC)....

  7. 76 FR 67717 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2011-11-02

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Department of Energy, Office of Nuclear Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Nuclear Energy Advisory Committee (NEAC)....

  8. 77 FR 67809 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2012-11-14

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Department of Energy, Office of Nuclear Energy. ACTION: Notice of Open Meeting. SUMMARY: This notice announces a meeting of the Nuclear Energy Advisory Committee (NEAC)....

  9. 77 FR 26274 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2012-05-03

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Department of Energy, Office of Nuclear Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Nuclear Energy Advisory Committee (NEAC)....

  10. 78 FR 70932 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2013-11-27

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Office of Nuclear Energy, Department of Energy. ACTION: Notice of open meeting. SUMMARY: This notice announces a meeting of the Nuclear Energy Advisory Committee (NEAC)....

  11. 78 FR 76599 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2013-12-18

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Office of Nuclear Energy, Department of Energy. ACTION: Notice of... that the Nuclear Energy Advisory Committee (NEAC) will be renewed for a two-year period beginning...

  12. 76 FR 43651 - Forestry Research Advisory Council

    Science.gov (United States)

    2011-07-21

    ... Forest Service Forestry Research Advisory Council AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Forestry Research Advisory Council will meet in Washington DC August 16-17, 2011. The purpose of the meeting is to discuss emerging issues in forestry research. DATES: The meeting will be...

  13. 77 FR 26734 - Forestry Research Advisory Council

    Science.gov (United States)

    2012-05-07

    ... Forest Service Forestry Research Advisory Council AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Forestry Research Advisory Council will meet in Washington, DC, on June 6-7, 2012. The purpose of the meeting is to discuss emerging issues in forestry research. DATES: The meeting will be...

  14. 75 FR 46903 - Forestry Research Advisory Council

    Science.gov (United States)

    2010-08-04

    ... Forest Service Forestry Research Advisory Council AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Forestry Research Advisory Council will meet in Washington, DC September 8-9, 2010. The purpose of the meeting is to discuss emerging issues in forestry research. DATES: The meeting will be...

  15. Atmospheric Chemistry and Air Pollution

    OpenAIRE

    Gaffney, Jeffrey S.; Marley, Nancy A.

    2003-01-01

    Atmospheric chemistry is an important discipline for understanding air pollution and its impacts. This mini-review gives a brief history of air pollution and presents an overview of some of the basic photochemistry involved in the production of ozone and other oxidants in the atmosphere. Urban air quality issues are reviewed with a specific focus on ozone and other oxidants, primary and secondary aerosols, alternative fuels, and the potential for chlorine releases to amplify oxidant chemistry...

  16. 76 FR 36930 - National Advisory Council on Alcohol Abuse and Alcoholism and National Advisory Council on Drug...

    Science.gov (United States)

    2011-06-23

    ... HUMAN SERVICES National Institutes of Health National Advisory Council on Alcohol Abuse and Alcoholism... the National Advisory Council on Alcohol Abuse and Alcoholism and the National Institute on Drug Abuse... Committee: National Advisory Council on Alcohol Abuse and Alcoholism and National Advisory Council on...

  17. 75 FR 6358 - Federal Advisory Committee; Defense Advisory Board for Employer Support of the Guard and Reserve...

    Science.gov (United States)

    2010-02-09

    ... of the Secretary Federal Advisory Committee; Defense Advisory Board for Employer Support of the Guard and Reserve; Defense Advisory Board for Employer Partnership; Charter Revision AGENCY: Department of... intends to revise the charter for the Defense Advisory Board for Employer Support of the Guard and...

  18. Input of the US Advisory Panel on Federal International Tax Reform

    OpenAIRE

    Weiner, JoAnn M.

    2006-01-01

    In November 2005, the U.S. President's Advisory Panel on Federal Tax Reform released a comprehensive Report titled “Simple, Fair, and Pro-Growth: Proposals to Fix America's Tax System.†The Report addressed all aspects of the federal income tax treatment of households and businesses under both domestic and international rules. This paper focuses on the proposals dealing with international elements of federal tax reform that affect multinational businesses. The report presents two broad Pla...

  19. 78 FR 37821 - Joint Meeting of the Risk Communication Advisory Committee and Tobacco Products Scientific...

    Science.gov (United States)

    2013-06-24

    ...: Risk Communication Advisory Committee and Tobacco Products Scientific Advisory Committee. General... HUMAN SERVICES Food and Drug Administration Joint Meeting of the Risk Communication Advisory Committee and Tobacco Products Scientific Advisory Committee; Notice of Joint Meeting AGENCY: Food and...

  20. 76 FR 52016 - NASA Federal Advisory Committees; Nominations and Self-Nominations

    Science.gov (United States)

    2011-08-19

    ... SPACE ADMINISTRATION NASA Federal Advisory Committees; Nominations and Self- Nominations AGENCY...-nominations for consideration as potential members of NASA's Federal advisory committees. NASA's Federal... NASA Federal Advisory Committees. SUMMARY: In accordance with the Federal Advisory Committee...

  1. 78 FR 71631 - Committee Name: Homeland Security Information Network Advisory Committee (HSINAC)

    Science.gov (United States)

    2013-11-29

    ... SECURITY Committee Name: Homeland Security Information Network Advisory Committee (HSINAC) AGENCY... Management; Notice of Federal Advisory Committee Meeting. SUMMARY: The Homeland Security Information Network... Homeland Security Information Network Advisory Committee (HSINAC) is an advisory body to the...

  2. Exoplanetary Atmospheres

    CERN Document Server

    Madhusudhan, Nikku; Fortney, Jonathan; Barman, Travis

    2014-01-01

    The study of exoplanetary atmospheres is one of the most exciting and dynamic frontiers in astronomy. Over the past two decades ongoing surveys have revealed an astonishing diversity in the planetary masses, radii, temperatures, orbital parameters, and host stellar properties of exoplanetary systems. We are now moving into an era where we can begin to address fundamental questions concerning the diversity of exoplanetary compositions, atmospheric and interior processes, and formation histories, just as have been pursued for solar system planets over the past century. Exoplanetary atmospheres provide a direct means to address these questions via their observable spectral signatures. In the last decade, and particularly in the last five years, tremendous progress has been made in detecting atmospheric signatures of exoplanets through photometric and spectroscopic methods using a variety of space-borne and/or ground-based observational facilities. These observations are beginning to provide important constraints...

  3. Atmospheric composition

    Science.gov (United States)

    Daniels, G. E.

    1973-01-01

    The earth's atmosphere is made up of a number of gases in different relative amounts. Near sea level and up to about 90 km, the amount of these atmospheric gases in clean, relatively dry air is practically constant. Four of these gases, nitrogen, oxygen, argon, and carbon dioxide, make up 99.99 percent by volume of the atmosphere. Two gases, ozone and water vapor, change in relative amounts, but the total amount of these two is very small compared to the amount of the other gases. The atmospheric composition shown in a table can be considered valid up to 90 km geometric altitude. Above 90 km, mainly because of molecular dissociation and diffusive separation, the composition changes.

  4. Testing of environmental transfer models using data from the atmospheric release of Iodine-131 from the Hanford site, USA, in 1963. Report of the Dose Reconstruction Working Group of the Biosphere Modelling and Assessment (BIOMASS) Programme, Theme 2

    International Nuclear Information System (INIS)

    The IAEA Programme on BIOsphere Modelling and ASSessment (BIOMASS) was launched in Vienna in October 1996. The programme was concerned with developing and improving capabilities to predict the transfer of radionuclides in the environment. The programme had three themes: Theme 1: Radioactive Waste Disposal. The objective was to develop the concept of a standard or reference biosphere for application to the assessment of the long term safety of repositories for radioactive waste. Theme 2: Environmental Releases. BIOMASS provided an international forum for activities aimed at increasing the confidence in methods and models for the assessment of radiation exposure related to environmental releases. Two Working Groups addressed issues concerned with the reconstruction of radiation doses received by people from past releases of radionuclides to the environment and the evaluation of the efficacy of remedial measures. Theme 3: Biosphere Processes. The aim of this Theme was to improve capabilities for modelling the transfer of radionuclides in particular parts of the biosphere identified as being of potential radiological significance and where there were gaps in modelling approaches. This topic was explored using a range of methods including reviews of the literature, model inter-comparison exercises and, where possible, model testing against independent sources of data. Three Working Groups were established to examine the modelling of: (1) long term tritium dispersion in the environment; (2) radionuclide uptake by fruits; and (3) radionuclide migration and accumulation in forest ecosystems. This report describes results of the studies undertaken by the Dose Reconstruction Working Group under Theme 2

  5. 30 CFR 77.304 - Explosion release vents.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Explosion release vents. 77.304 Section 77.304... Dryers § 77.304 Explosion release vents. Drying chambers, dry-dust collectors, ductwork connecting dryers... explosion release vents which open directly to the outside atmosphere, and all such vents shall be:...

  6. Atmospheric Photochemistry

    Science.gov (United States)

    Massey, Harrie; Potter, A. E.

    1961-01-01

    The upper atmosphere offers a vast photochemical laboratory free from solid surfaces, so all reactions take place in the gaseous phase. At 30 km altitude the pressure has fallen to about one-hundredth of that at ground level, and we shall, rather arbitrarily, regard the upper atmosphere as beginning at that height. By a little less than 100 km the pressure has fallen to 10(exp -3) mm Hg and is decreasing by a power of ten for every 15 km increase in altitude. Essentially we are concerned then with the photochemistry of a nitrogen-oxygen mixture under low-pressure conditions in which photo-ionization, as well as photodissociation, plays an important part. Account must also be taken of the presence of rare constituents, such as water vapour and its decomposition products, including particularly hydroxyl, oxides of carbon, methane and, strangely enough, sodium, lithium and calcium. Many curious and unfamiliar reactions occur in the upper atmosphere. Some of them are luminescent, causing the atmosphere to emit a dim light called the airglow. Others, between gaseous ions and neutral molecules, are almost a complete mystery at this time. Similar interesting phenomena must occur in other planetary atmospheres, and they might be predicted if sufficient chemical information were available.

  7. 77 FR 35063 - Whistleblower Protection Advisory Committee

    Science.gov (United States)

    2012-06-12

    ... Occupational Safety and Health Administration Whistleblower Protection Advisory Committee AGENCY: Occupational..., Director, Office of the Whistleblower Protection Program, Occupational Safety and Health Administration, U... INFORMATION: The Assistant Secretary of Labor for Occupational Safety and Health (Assistant......

  8. 77 FR 16894 - Financial Research Advisory Committee

    Science.gov (United States)

    2012-03-22

    ... recognized experts in the fields of economics, financial institutions and markets, statistical analysis, financial markets analysis, econometrics, applied sciences, risk management, data, information standards... Financial Research Advisory Committee AGENCY: Office of Financial Research, Treasury. ACTION: Notice...

  9. 78 FR 28594 - Advisory Committee Meeting

    Science.gov (United States)

    2013-05-15

    ... discussions on the following topics: Ex-Im Bank business review, Ex-Im Bank 2012 draft competitiveness report and Advisory Committee letter statement on the findings of the draft competitiveness report, and...

  10. 76 FR 78252 - Nuclear Energy Advisory Committee

    Science.gov (United States)

    2011-12-16

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Nuclear Energy Advisory Committee AGENCY: Department of Energy, Office of Nuclear Energy. ACTION: Notice of... Management Secretariat, General Services Administration, notice is hereby given that the Nuclear...

  11. 77 FR 38630 - Open Internet Advisory Committee

    Science.gov (United States)

    2012-06-28

    ... meeting. By notice of intent to establish the Open Internet Advisory Committee, published at 76 FR 22395... Vigil Security, LLC) Neil Hunt, Chief Product Officer, Netflix Charles Kalmanek, Vice President...

  12. Atmospheric thermodynamics

    CERN Document Server

    Iribarne, J V

    1973-01-01

    The thermodynamics of the atmosphere is the subject of several chapters in most textbooks on dynamic meteorology, but there is no work in English to give the subject a specific and more extensive treatment. In writing the present textbook, we have tried to fill this rather remarkable gap in the literature related to atmospheric sciences. Our aim has been to provide students of meteorology with a book that can playa role similar to the textbooks on chemical thermodynamics for the chemists. This implies a previous knowledge of general thermodynamics, such as students acquire in general physics courses; therefore, although the basic principles are reviewed (in the first four chapters), they are only briefly discussed, and emphasis is laid on those topics that will be useful in later chapters, through their application to atmospheric problems. No attempt has been made to introduce the thermodynamics of irreversible processes; on the other hand, consideration of heterogeneous and open homogeneous systems permits a...

  13. Advisory Tools for Use in Organic Farming

    OpenAIRE

    Peers, David; van Diepen, Pauline

    2008-01-01

    Advisory tools are an invaluable aid for advisers in providing farmers with the necessary information for analysis and planning of all aspects of the farm. The review of Advisory Tools provides access to and a comprehensive list of all the templates, calculators and analytical tools available to organic advisers, covering the nutrient managment, business, soils and animal husbandry. The review identifies relevant research and development, the tools developed and draws on farm and adviso...

  14. Atmospheric transport modelling for the CTBT radionuclide network in routine operation and after the Fukushima releases; Atmosphaerische Transportmodellierung fuer das Radionuklidmessnetz zur Ueberwachung des Kernwaffenteststoppvertrages im Regelbetrieb und nach den Freisetzungen in Fukushima

    Energy Technology Data Exchange (ETDEWEB)

    Ross, J.O.; Ceranna, L.; Boennemann, C. [Bundesanstalt fuer Geowissenschaften und Rohstoffe (BGR), Hannover (Germany). B4.3; Schlosser, C. [Bundesamt fuer Strahlenschutz (BfS), Freiburg (Germany). SW2.5

    2014-01-20

    The Comprehensive Nuclear-Test-Ban Treaty (CTBT) bans all types of nuclear explosions. For verification of compliance with Treaty the International Monitoring System (IMS) is being built up by the Provisional Technical Secretariat (PTS) of the CTBT-Organisation in Vienna. The IMS observes waveform signals (seismic, infrasound, hydroacoustic) of explosions and traces of radionuclides in the atmosphere to proof the nuclear character of an event. The International Data Centre (IDC) provides analysis products for the IMS data such as various event bulletins, radionuclide reports, and atmospheric transport modeling (ATM) results confining the possible source region of detected radionuclides. The judgment on the character of a suspicious event remains with the member states. The German National Data Centre for verification of CTBT is hosted by the Federal Institute for Geosciences and Natural Resources (BGR) in Hannover. The BGR operates four IMS stations (IS26, IS27, PS19, and AS35) and cooperates closely with the Federal Office for Radiation Protection (BfS) who operates the radionuclide station RN33 at mount Schauinsland and supports the NDC with radionuclide expertise. In response to the Fukushima accident caused by the large magnitude 9.0 Tohuku Earthquake and Tsunami the HSYSPLIT model driven by 0.5 degree NCEP data was used at the German NDC to simulate the primary transport pathways of potentially emitted radioisotopes. The analysis focuses on arrival times and dilution ratios at the radionuclide stations of the IMS. The arrival times were predicted correctly at most stations for ten days after the accident. Traces of the Fukushima emissions were detected at all IMS radionuclide stations on the Northern Hemisphere end of March. In April also some stations on the Southern Hemisphere detected some traces which passed the ITCZ. In respect to the CTBT context the influence of the Tohoku earthquake and the Fukushima emissions on the network capability to detect a

  15. 75 FR 9184 - Federal Advisory Committee; Advisory Council on Dependents' Education; Open Meeting

    Science.gov (United States)

    2010-03-01

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF DEFENSE Office of the Secretary Federal Advisory Committee; Advisory Council on Dependents' Education; Open Meeting AGENCY: Department of Defense Education Activity (DoDEA). ACTION: Open meeting notice. SUMMARY: Under...

  16. 75 FR 64711 - Federal Advisory Committee; Threat Reduction Advisory Committee; Correction

    Science.gov (United States)

    2010-10-20

    ... of the Secretary Federal Advisory Committee; Threat Reduction Advisory Committee; Correction AGENCY... closed meeting; correction. SUMMARY: On September 30, 2010 (75 FR 60430) the Department of Defense published a notice in the Federal Register announcing an October 21, 2010, meeting of the Threat...

  17. 75 FR 25212 - Federal Advisory Committee; Defense Audit Advisory Committee (DAAC)

    Science.gov (United States)

    2010-05-07

    ... Balance sheet property valuation 4:35 Internal Audit Role 4:55 Closing Remarks Accessibility to the... include financial reporting processes, systems of internal controls, audit processes, and processes for... of the Secretary Federal Advisory Committee; Defense Audit Advisory Committee (DAAC) AGENCY:...

  18. 77 FR 72322 - The National Advisory Council on Innovation and Entrepreneurship Meeting of the National Advisory...

    Science.gov (United States)

    2012-12-05

    ... Economic Development Administration The National Advisory Council on Innovation and Entrepreneurship Meeting of the National Advisory Council on Innovation and Entrepreneurship AGENCY: U.S. Department of... Entrepreneurship will hold a meeting on Tuesday, December 11, 2012. The open meeting will be held from 10:00...

  19. 78 FR 5772 - The National Advisory Council on Innovation and Entrepreneurship Meeting of the National Advisory...

    Science.gov (United States)

    2013-01-28

    ... Economic Development Administration The National Advisory Council on Innovation and Entrepreneurship Meeting of the National Advisory Council on Innovation and Entrepreneurship AGENCY: U.S. Department of... Entrepreneurship will hold a meeting on Tuesday, February 19, 2013. The open meeting will be held from 10:00...

  20. 78 FR 801 - National Emergency Medical Services Advisory Council (NEMSAC); Notice of Federal Advisory...

    Science.gov (United States)

    2013-01-04

    ... Office of EMS and FICEMS Agencies (3) Discussion of the EMS Culture of Safety Strategy Draft Document (4.... Advisory on Leadership Developmental Planning in EMS b. Advisory on NEMSIS: Achieving its Full Potential... 2:30 p.m. EST) (6) Discussion of NEMSAC Priorities, Strategies and Values (7) Business of...

  1. 77 FR 56192 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2012-09-12

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... intelligence operations. Agenda September 26, 2012: ] 8:30 a.m Call to Order........ Ms. Ellen M....

  2. 77 FR 38041 - Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed Meeting

    Science.gov (United States)

    2012-06-26

    ... of the Secretary Federal Advisory Committee; Defense Intelligence Agency (DIA) Advisory Board; Closed... discussions of classified information relating to DIA's intelligence operations including its support to... intelligence operations. Agenda July 23, 2012 1 p.m.--Call to Order Mr. William Caniano, Designated...

  3. 76 FR 35891 - Meeting of the Local Government Advisory Committee and Small Community Advisory Subcommittee

    Science.gov (United States)

    2011-06-20

    ... AGENCY Meeting of the Local Government Advisory Committee and Small Community Advisory Subcommittee AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: The U.S. EPA's Local Government...., Chicago, Illinois. FOR FURTHER INFORMATION CONTACT: Paula Zampieri, DFO for the Local Government...

  4. 78 FR 66929 - Meetings of the Local Government Advisory Committee and the Small Communities Advisory...

    Science.gov (United States)

    2013-11-07

    ... AGENCY Meetings of the Local Government Advisory Committee and the Small Communities Advisory... comments may be extended if the number of requests for appearances requires it. The Local Government... local governments. This is an open meeting and all interested persons are invited to participate....

  5. Atmospheric Mercury Concentrations Near Salmon Falls Creek Reservoir - Phase 1

    Energy Technology Data Exchange (ETDEWEB)

    M. L. Abbott

    2005-10-01

    Elemental and reactive gaseous mercury (EGM/RGM) were measured in ambient air concentrations over a two-week period in July/August 2005 near Salmon Falls Creek Reservoir, a popular fishery located 50 km southwest of Twin Falls, Idaho. A fish consumption advisory for mercury was posted at the reservoir in 2002 by the Idaho Department of Health and Welfare. The air measurements were part of a multi-media (water, sediment, precipitation, air) study initiated by the Idaho Department of Environmental Quality and the U.S. Environmental Protection Agency (EPA) Region 10 to identify potential sources of mercury contamination to the reservoir. The sampling site is located about 150 km northeast of large gold mining operations in Nevada, which are known to emit large amounts of mercury to the atmosphere (est. 2,200 kg/y from EPA 2003 Toxic Release Inventory). The work was co-funded by the Idaho National Laboratory’s Community Assistance Program and has a secondary objective to better understand mercury inputs to the environment near the INL, which lies approximately 230 km to the northeast. Sampling results showed that both EGM and RGM concentrations were significantly elevated (~ 30 – 70%, P<0.05) compared to known regional background concentrations. Elevated short-term RGM concentrations (the primary form that deposits) were likely due to atmospheric oxidation of high EGM concentrations, which suggests that EGM loading from upwind sources could increase Hg deposition in the area. Back-trajectory analyses indicated that elevated EGM and RGM occurred when air parcels came out of north-central and northeastern Nevada. One EGM peak occurred when the air parcels came out of northwestern Utah. Background concentrations occurred when the air was from upwind locations in Idaho (both northwest and northeast). Based on 2003 EPA Toxic Release Inventory data, it is likely that most of the observed peaks were from Nevada gold mine sources. Emissions from known large natural mercury

  6. Atmospheric Refraction

    CERN Document Server

    Nauenberg, Michael

    2016-01-01

    Calculations of atmospheric refraction are generally based on a simplified model of atmospheric density in the troposphere which assumes that the temperature decreases at a constant lapse rate from sea level up to a height equal to eleven km, and that afterwards it remains constant. In this model, the temperature divided by the lapse rate determines the length scale in the calculations for altitudes less than this height. But daily balloon measurements across the U.S.A. reveal that in some cases the air temperature actually increases from sea level up to a height of about one km, and only after reaching a plateau, it decreases at an approximately constant lapse rate. Moreover, in three examples considered here, the temperature does not remain constant at eleven km , but continues to decreases to a minimum at about sixteen kilometers , and then increases at higher altitudes at a lower rate. Calculations of atmospheric refraction based on this atmospheric data is compared with the results of simplified models.

  7. Atmospheric Dispositifs

    DEFF Research Database (Denmark)

    Wieczorek, Izabela

    2015-01-01

    as a spatial phenomenon, exploring a multiplicity of conditions that constitute their resonant origins – i.e. the production sites from and within they have emerged. The intention is also to argue that despite the fact that atmosphere as an aesthetic category has crystallised over the last few decades...

  8. 77 FR 24760 - Safety Advisory 2012-02; Restricted Speed

    Science.gov (United States)

    2012-04-25

    ... Federal Railroad Administration Safety Advisory 2012-02; Restricted Speed AGENCY: Federal Railroad... speed. This safety advisory contains a preliminary discussion of recent train accidents involving a failure to operate at restricted speed and makes recommendations to railroads to ensure...

  9. Federal Advisory Committee Act (FACA) Database-Complete-Raw

    Data.gov (United States)

    General Services Administration — The Federal Advisory Committee Act (FACA) database is used by Federal agencies to continuously manage an average of 1,000 advisory committees government-wide. This...

  10. 77 FR 51753 - Daniel Boone National Forest Resource Advisory Committee

    Science.gov (United States)

    2012-08-27

    ... Forest Service Daniel Boone National Forest Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Daniel Boone National Forest Resource Advisory Committee (RAC... public may inspect comments received at Daniel Boone National Forest, 1700 Bypass Road,...

  11. 78 FR 10213 - NASA Advisory Council; Commercial Space Committee; Meeting

    Science.gov (United States)

    2013-02-13

    ... SPACE ADMINISTRATION NASA Advisory Council; Commercial Space Committee; Meeting AGENCY: National... (NASA) announces a meeting of the Commercial Space Committee of the NASA Advisory Council (NAC). This.... Rathjen, Human Exploration and Operations Mission Directorate, NASA Headquarters, Washington, DC...

  12. 77 FR 70450 - Risk Communication Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2012-11-26

    ... HUMAN SERVICES Food and Drug Administration Risk Communication Advisory Committee; Notice of Meeting... the public. Name of Committee: Risk Communication Advisory Committee. General Function of the... Campus must enter through Building 1. Contact Person: Lee L. Zwanziger, Risk Communication Staff,...

  13. CDC Ends Zika Travel Advisory for Miami Neighborhood

    Science.gov (United States)

    ... medlineplus.gov/news/fullstory_161032.html CDC Ends Zika Travel Advisory for Miami Neighborhood Pregnant women still ... News) -- U.S. health officials on Monday lifted the Zika virus travel advisory that urged pregnant women to ...

  14. 77 FR 41203 - NASA International Space Station Advisory Committee; Meeting

    Science.gov (United States)

    2012-07-12

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee; Meeting AGENCY: National... Administration announces an open meeting of the NASA International Space Station (ISS) Advisory Committee. The... aboard the International Space Station, including transportation, and crew rotation; and, to assess...

  15. 78 FR 77502 - NASA International Space Station Advisory Committee; Meeting

    Science.gov (United States)

    2013-12-23

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee; Meeting AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of Meeting. SUMMARY: In accordance with the... Administration announces a meeting of the NASA International Space Station (ISS) Advisory Committee. The...

  16. 78 FR 49296 - NASA International Space Station Advisory Committee; Meeting

    Science.gov (United States)

    2013-08-13

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee; Meeting AGENCY: National Aeronautics and Space Administration (NASA). ACTION: Notice of meeting. SUMMARY: In accordance with the... Administration announces a meeting of the NASA International Space Station (ISS) Advisory Committee. The...

  17. 77 FR 2765 - NASA International Space Station Advisory Committee; Meeting

    Science.gov (United States)

    2012-01-19

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee; Meeting AGENCY: National... Administration announces an open meeting of the NASA International Space Station (ISS) Advisory Committee. The... aboard the International Space Station, including transportation, and crew rotation; and, to assess...

  18. 77 FR 66082 - NASA International Space Station Advisory Committee; Meeting

    Science.gov (United States)

    2012-11-01

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee; Meeting AGENCY: National... Administration announces an open meeting of the NASA International Space Station (ISS) Advisory Committee. The... aboard the International Space Station, including transportation, and crew rotation; and, to assess...

  19. 75 FR 51852 - NASA International Space Station Advisory Committee; Meeting

    Science.gov (United States)

    2010-08-23

    ... SPACE ADMINISTRATION NASA International Space Station Advisory Committee; Meeting AGENCY: National... Administration announces an open meeting of the NASA International Space Station Advisory Committee. The purpose... the International Space Station, including transportation, crew rotation, training, and...

  20. 75 FR 22553 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2010-04-29

    ... National Institute of Standards and Technology Technology Innovation Program Advisory Board AGENCY: National Institute of Standards and Technology, Department of Commerce. ACTION: Notice of public meeting. SUMMARY: The Technology Innovation Program Advisory Board, National Institute of Standards and...

  1. 76 FR 18166 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2011-04-01

    ... National Institute of Standards and Technology Technology Innovation Program Advisory Board AGENCY: National Institute of Standards and Technology, Department of Commerce. ACTION: Notice of public meeting. SUMMARY: The Technology Innovation Program Advisory Board, National Institute of Standards and...

  2. 75 FR 62369 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2010-10-08

    ... National Institute of Standards and Technology Technology Innovation Program Advisory Board AGENCY: National Institute of Standards and Technology, Department of Commerce. ACTION: Notice of public meeting. SUMMARY: The Technology Innovation Program Advisory Board, National Institute of Standards and...

  3. 75 FR 69916 - Southern New Mexico Resource Advisory Committee

    Science.gov (United States)

    2010-11-16

    ... Forest Service Southern New Mexico Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Southern New Mexico Resource Advisory Committee (RAC) will meet in... CODE 3410-11-P...

  4. 76 FR 16603 - Southern New Mexico Resource Advisory Committee

    Science.gov (United States)

    2011-03-24

    ... Forest Service Southern New Mexico Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Southern New Mexico Resource Advisory Committee (RAC) will meet in..., Designated Federal Official. BILLING CODE 3410-11-P...

  5. 78 FR 17414 - Risk Communications Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2013-03-21

    ...: Luis G. Bravo, Designated Federal Officer, Risk Communication Staff, Office of Planning, Food and Drug... HUMAN SERVICES Food and Drug Administration Risk Communications Advisory Committee; Notice of Meeting... the public. Name of Committee: Risk Communications Advisory Committee. General Function of...

  6. 75 FR 57279 - Risk Communication Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2010-09-20

    ... HUMAN SERVICES Food and Drug Administration Risk Communication Advisory Committee; Notice of Meeting... the public. Name of Committee: Risk Communication Advisory Committee. General Function of the... programs, such as FDA's Strategic Plan for Risk Communication, FDA's Transparency Initiative, and...

  7. 77 FR 62242 - Risk Communication Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2012-10-12

    ... HUMAN SERVICES Food and Drug Administration Risk Communication Advisory Committee; Notice of Meeting... the public. Name of Committee: Risk Communication Advisory Committee. General Function of the... enter through Building 1. Contact Person: Lee L. Zwanziger, Risk Communication Staff, Office of...

  8. 77 FR 31025 - Risk Communication Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2012-05-24

    ... HUMAN SERVICES Food and Drug Administration Risk Communication Advisory Committee; Notice of Meeting... the public. Name of Committee: Risk Communication Advisory Committee. General Function of the... enter through Building 1. Contact Person: Lee L. Zwanziger, Risk Communication Staff, Office of...

  9. 77 FR 5494 - Commerce Spectrum Management Advisory Committee Meeting

    Science.gov (United States)

    2012-02-03

    ... (Search for 500 MHz, Spectrum Sharing, Spectrum Management Improvements, and Unlicensed), and identify... National Telecommunications and Information Administration Commerce Spectrum Management Advisory Committee... Management Advisory Committee (Committee). The Committee provides advice to the Assistant Secretary...

  10. 78 FR 2407 - Medicare Payment Advisory Commission Nomination Letters

    Science.gov (United States)

    2013-01-11

    ... From the Federal Register Online via the Government Publishing Office GOVERNMENT ACCOUNTABILITY OFFICE Medicare Payment Advisory Commission Nomination Letters AGENCY: Government Accountability Office... the Medicare Payment Advisory Commission (MedPAC) and gave the Comptroller General responsibility...

  11. 76 FR 5591 - Medicare Payment Advisory Commission Nomination Letters

    Science.gov (United States)

    2011-02-01

    ... From the Federal Register Online via the Government Publishing Office GOVERNMENT ACCOUNTABILITY OFFICE Medicare Payment Advisory Commission Nomination Letters AGENCY: Government Accountability Office... the Medicare Payment Advisory Commission (MedPAC) and gave the Comptroller General responsibility...

  12. Beach Advisory and Closing Online Notification (BEACON) system

    Data.gov (United States)

    U.S. Environmental Protection Agency — Beach Advisory and Closing Online Notification system (BEACON) is a colletion of state and local data reported to EPA about beach closings and advisories. BEACON is...

  13. 75 FR 28275 - Homeland Security Science and Technology Advisory Committee

    Science.gov (United States)

    2010-05-20

    ... SECURITY Homeland Security Science and Technology Advisory Committee AGENCY: Science and Technology...: On April 12, 2010, the Homeland Security Science and Technology Advisory Committee announced in the... supplements that original meeting notice. DATES: The Homeland Security Science and Technology...

  14. 77 FR 65570 - Merchant Marine Personnel Advisory Committee: Intercessional Meeting

    Science.gov (United States)

    2012-10-29

    ... SECURITY Coast Guard Merchant Marine Personnel Advisory Committee: Intercessional Meeting AGENCY: Coast... of the Merchant Marine Personnel Advisory Committee (MERPAC) will meet to discuss Task Statement 80....S. merchant marine, including but not limited to training, qualifications,...

  15. 75 FR 57102 - Occupational Information Development Advisory Panel Meeting; Correction

    Science.gov (United States)

    2010-09-17

    ... ADMINISTRATION Occupational Information Development Advisory Panel Meeting; Correction AGENCY: Social Security Administration. ACTION: Notice; correction. SUMMARY: The Social Security Administration published a document in...: Occupational Information Development Advisory Panel, Social Security Administration, 6401 Security...

  16. 76 FR 2189 - Occupational Information Development Advisory Panel

    Science.gov (United States)

    2011-01-12

    ... From the Federal Register Online via the Government Publishing Office SOCIAL SECURITY ADMINISTRATION Occupational Information Development Advisory Panel AGENCY: Social Security Administration (SSA... Advisory Panel, Social Security Administration, 6401 Security Boulevard, 3-E-26 Operations, Baltimore,...

  17. 76 FR 70804 - Occupational Information Development Advisory Panel Meeting

    Science.gov (United States)

    2011-11-15

    ... From the Federal Register Online via the Government Publishing Office SOCIAL SECURITY ADMINISTRATION Occupational Information Development Advisory Panel Meeting AGENCY: Social Security Administration... Advisory Panel, Social Security Administration, 6401 Security Boulevard, Robert M. Ball Federal Building,...

  18. 78 FR 49752 - National Environmental Education Advisory Council

    Science.gov (United States)

    2013-08-15

    ... AGENCY National Environmental Education Advisory Council AGENCY: Environmental Protection Agency (EPA... series of teleconference meetings of the National Environmental Education Advisory Council (NEEAC). The... EPA under the National Environmental Education Act (the Act). The purpose of these...

  19. 78 FR 12056 - National Environmental Education Advisory Council

    Science.gov (United States)

    2013-02-21

    ... AGENCY National Environmental Education Advisory Council AGENCY: Environmental Protection Agency (EPA... series of teleconference meetings of the National Environmental Education Advisory Council (NEEAC). The... EPA under the National Environmental Education Act (the Act). The purpose of these...

  20. 78 FR 29321 - Colorado Recreation Resource Advisory Committee Meeting

    Science.gov (United States)

    2013-05-20

    ... Forest Service Colorado Recreation Resource Advisory Committee Meeting AGENCY: Rocky Mountain Region, Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Colorado Recreation Resource Advisory... National Forest. Proposals, updates, and other information can be found on the Colorado Recreation...

  1. 76 FR 4281 - Recreation Resource Advisory Committees Charter Reestablishment

    Science.gov (United States)

    2011-01-25

    ... Forest Service Recreation Resource Advisory Committees Charter Reestablishment AGENCY: Forest Service, USDA. ACTION: Notice of intent to reestablish the Recreation Resource Advisory Committees. SUMMARY: The Secretary of Agriculture intends to reestablish the charter for 5 Forest Service Recreation...

  2. 75 FR 18482 - Environmental Technologies Trade Advisory Committee (ETTAC)

    Science.gov (United States)

    2010-04-12

    ... Environmental Technologies Trade Advisory Committee (ETTAC) AGENCY: International Trade Administration, U.S. Department of Commerce. ACTION: Notice of open meeting. SUMMARY: The Environmental Technologies Trade Advisory Committee (ETTAC) will hold its quarterly meeting to discuss environmental technologies...

  3. 75 FR 52716 - Environmental Technologies Trade Advisory Committee (ETTAC)

    Science.gov (United States)

    2010-08-27

    ... Environmental Technologies Trade Advisory Committee (ETTAC) AGENCY: International Trade Administration, U.S. Department of Commerce. ACTION: Notice of open meeting. SUMMARY: The Environmental Technologies Trade Advisory Committee (ETTAC) will hold its quarterly meeting to discuss environmental technologies...

  4. 75 FR 52605 - Veterinary Medicine Advisory Committee; Notice of Meeting

    Science.gov (United States)

    2010-08-26

    ... HUMAN SERVICES Food and Drug Administration Veterinary Medicine Advisory Committee; Notice of Meeting... the public. Name of Committee: Veterinary Medicine Advisory Committee. General Function of the...-1100. Contact Person: Aleta Sindelar, Center for Veterinary Medicine (HFV-3), Food and...

  5. 77 FR 19056 - Information Reporting Program Advisory Committee (IRPAC); Nominations

    Science.gov (United States)

    2012-03-29

    ... Internal Revenue Service Information Reporting Program Advisory Committee (IRPAC); Nominations AGENCY... Program Advisory Committee (IRPAC). Nominations should describe and document the proposed member's... committees. Therefore, it extends particular encouragement to nominations from such appropriately...

  6. 77 FR 10742 - Local Government Advisory Committee; Request for Nominations

    Science.gov (United States)

    2012-02-23

    ... AGENCY Local Government Advisory Committee; Request for Nominations AGENCY: Environmental Protection... demonstrated ability to work constructively and effectively on committees. How to Submit Nominations: Any... ] advisory committee. Individuals may self-nominate. Nominations can be submitted in electronic...

  7. 78 FR 19582 - Information Reporting Program Advisory Committee (IRPAC); Nominations

    Science.gov (United States)

    2013-04-01

    ... Internal Revenue Service Information Reporting Program Advisory Committee (IRPAC); Nominations AGENCY: Internal Revenue Service, Department of Treasury. ACTION: Request for Nominations. SUMMARY: The Internal... Program Advisory Committee (IRPAC). Nominations should describe and document the proposed...

  8. 76 FR 70970 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2011-11-16

    ... National Institute of Standards and Technology Technology Innovation Program Advisory Board AGENCY.... SUMMARY: The Technology Innovation Program (TIP) Advisory Board will hold a meeting via teleconference on... Innovation Program Acting Deputy Director, National Institute of Standards and Technology, 100 Bureau...

  9. 76 FR 22674 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2011-04-22

    ... National Institute of Standards and Technology Manufacturing Extension Partnership Advisory Board AGENCY... announces that the Manufacturing Extension Partnership (MEP) Advisory Board, National Institute of Standards... than May 2, 2011. FOR FURTHER INFORMATION CONTACT: Karen Lellock, Manufacturing Extension...

  10. 75 FR 50749 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2010-08-17

    ... National Institute of Standards and Technology Manufacturing Extension Partnership Advisory Board AGENCY... announces that the Manufacturing Extension Partnership (MEP) Advisory Board, National Institute of Standards... INFORMATION CONTACT: Karen Lellock, Manufacturing Extension Partnership, National Institute of Standards...

  11. 77 FR 20790 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2012-04-06

    ... National Institute of Standards and Technology Manufacturing Extension Partnership Advisory Board AGENCY... announces that the Manufacturing Extension Partnership (MEP) Advisory Board, National Institute of Standards... INFORMATION section below. FOR FURTHER INFORMATION CONTACT: Karen Lellock, Manufacturing Extension...

  12. 75 FR 19941 - Manufacturing Extension Partnership Advisory Board

    Science.gov (United States)

    2010-04-16

    ... National Institute of Standards and Technology Manufacturing Extension Partnership Advisory Board AGENCY... announces that the Manufacturing Extension Partnership (MEP) Advisory Board, National Institute of Standards..., 2010. FOR FURTHER INFORMATION CONTACT: Karen Lellock, Manufacturing Extension Partnership,...

  13. 78 FR 2259 - Fusion Energy Sciences Advisory Committee

    Science.gov (United States)

    2013-01-10

    ...This notice announces a meeting of the Fusion Energy Sciences Advisory Committee. The Federal Advisory Committee Act (Pub. L. 92-463, 86 Stat. 770) requires that public notice of these meetings be announced in the Federal...

  14. 76 FR 67750 - Homeland Security Information Network Advisory Committee

    Science.gov (United States)

    2011-11-02

    ... SECURITY Homeland Security Information Network Advisory Committee AGENCY: Department of Homeland Security... Applicants for Appointment to Homeland Security Information Network Advisory Committee. SUMMARY: The Secretary of Homeland Security has determined that the renewal of the Homeland Security Information...

  15. 76 FR 82031 - Commercial Space Transportation Advisory Committee; Public Teleconference

    Science.gov (United States)

    2011-12-29

    ... Federal Aviation Administration Commercial Space Transportation Advisory Committee; Public Teleconference AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Commercial Space Transportation... teleconference of the Commercial Space Transportation Advisory Committee (COMSTAC) Risk Management Working...

  16. 78 FR 53496 - Commercial Space Transportation Advisory Committee; Public Teleconference

    Science.gov (United States)

    2013-08-29

    ... Federal Aviation Administration Commercial Space Transportation Advisory Committee; Public Teleconference AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Commercial Space Transportation... Space Transportation Advisory Committee (COMSTAC). DATES: The teleconference will take place on...

  17. 77 FR 35102 - Commercial Space Transportation Advisory Committee; Public Teleconference

    Science.gov (United States)

    2012-06-12

    ... Federal Aviation Administration Commercial Space Transportation Advisory Committee; Public Teleconference AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Commercial Space Transportation... Working Group (OWG) of the Commercial Space Transportation Advisory Committee (COMSTAC)....

  18. 76 FR 78329 - Commercial Space Transportation Advisory Committee; Public Teleconference

    Science.gov (United States)

    2011-12-16

    ... TRANSPORTATION Federal Aviation Administration Commercial Space Transportation Advisory Committee; Public Teleconference AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Commercial Space... Commercial Space Transportation Advisory Committee (COMSTAC). The teleconference will take place on...

  19. 78 FR 14401 - Commercial Space Transportation Advisory Committee; Public Teleconference

    Science.gov (United States)

    2013-03-05

    ... Federal Aviation Administration Commercial Space Transportation Advisory Committee; Public Teleconference AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of Commercial Space Transportation... Working Group of the Commercial Space Transportation Advisory Committee (COMSTAC). DATES:...

  20. 76 FR 52672 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-08-23

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... telecommunications policy. During the conference call, the NSTAC members will receive an update regarding...

  1. 75 FR 16159 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2010-03-31

    ... SECURITY National Communications System President's National Security Telecommunications Advisory Committee...: The President's National Security Telecommunications Advisory Committee (NSTAC) will hold its annual... and emergency preparedness telecommunications policy. Notice of this meeting is given under...

  2. 77 FR 65393 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-10-26

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... national security and emergency preparedness (NS/EP) telecommunications policy. Agenda: The NSTAC...

  3. 78 FR 63232 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-10-23

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC... related to national security and emergency preparedness (NS/EP) telecommunications policy. During...

  4. 77 FR 6813 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-02-09

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... and emergency preparedness telecommunications policy. During the conference call, the NSTAC...

  5. 78 FR 8160 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2013-02-05

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... telecommunications policy. Agenda: The NSTAC members will review and discuss the draft NSTAC Report to the...

  6. 76 FR 17424 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-03-29

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC... preparedness telecommunications policy. The NSTAC Chair, Mr. James Crowe, will call the meeting to order...

  7. 76 FR 72427 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2011-11-23

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Meeting. SUMMARY: The President's National Security Telecommunications Advisory Committee (NSTAC...) telecommunications policy. During the meeting, NSTAC members will receive feedback from the Department of...

  8. 77 FR 75182 - President's National Security Telecommunications Advisory Committee

    Science.gov (United States)

    2012-12-19

    ... SECURITY President's National Security Telecommunications Advisory Committee AGENCY: National Protection... Committee Teleconference. SUMMARY: The President's National Security Telecommunications Advisory Committee... telecommunications policy. Agenda: The NSTAC members will receive an update on progress made to date by the...

  9. 78 FR 77449 - National Environmental Education Advisory Council Meeting

    Science.gov (United States)

    2013-12-23

    ... Director, Office of Environmental Education. BILLING CODE 6560-50-P ... AGENCY National Environmental Education Advisory Council Meeting AGENCY: Environmental Protection Agency... of a meeting of the National Environmental Education Advisory Council (NEEAC). The NEEAC was...

  10. 78 FR 16357 - Research, Engineering and Development Advisory Committee

    Science.gov (United States)

    2013-03-14

    ... Federal Aviation Administration Research, Engineering and Development Advisory Committee AGENCY: Federal... Research, Engineering and Development (R,E&D) Advisory Committee. Name: Research, Engineering & Development... in the areas of air traffic services, airports, aircraft safety, human factors and environment...

  11. THE PERFORMANCE OF AGRICULTURAL MARKET ADVISORY SERVICES IN MARKETING WHEAT

    OpenAIRE

    Jirik, Mark A.; Irwin, Scott H.; Good, Darrel L.; Jackson, Thomas E.; Martines-Filho, Joao Gomes

    2000-01-01

    The purpose of this paper is to investigate the performance of agricultural market advisory services in marketing wheat. Two key performance questions are addressed: 1) Do market advisory services, on average, outperform an appropriate wheat market benchmark? and 2) Do market advisory services exhibit persistence in their wheat performance from year-to-year? Market advisory service recommendations for wheat are available from the AgMAS Project for the 1995, 1996, 1997 and 1998 marketing years...

  12. Material presented to advisory committee on reactor safeguards, subcommittee on extreme external phenomena, January 29-30, 1981, Los Angeles, California. Seismic safety margins research program

    International Nuclear Information System (INIS)

    The January 29-30, 1981, meeting of the Advisory Committee on Reactor Safeguards (ACRS), Subcommittee on Extreme External Phenomena, mark the close of Phase I efforts on the Seismic Safety Margins Research Program (SSMRP). Presentations at the meeting focused on results produced. These included computer codes, response computations, failure and release probabilities, data bases, and fragilities and parameter characteristics

  13. Generation and release of radioactive gases in LLW disposal facilities

    Energy Technology Data Exchange (ETDEWEB)

    Yim, M.S. [Harvard School Public Health, Boston, MA (United States); Simonson, S.A. [Massachusetts Institute of Technology, Cambridge, MA (United States)

    1995-02-01

    The atmospheric release of radioactive gases from a generic engineered LLW disposal facility and its radiological impacts were examined. To quantify the generation of radioactive gases, detailed characterization of source inventory for carbon-14, tritium, iodine-129, krypton-85, and radon-222, was performed in terms of their activity concentrations; their distribution within different waste classes, waste forms and containers; and their subsequent availability for release in volatile or gaseous form. The generation of gases was investigated for the processes of microbial activity, radiolysis, and corrosion of waste containers and metallic components in wastes. The release of radionuclides within these gases to the atmosphere was analyzed under the influence of atmospheric pressure changes.

  14. Fission product release from highly irradiated LWR fuel

    International Nuclear Information System (INIS)

    A series of experiments was conducted with highly irradiated light-water reactor fuel rod segments to investigate fission products released in steam in the temperature range 500 to 12000C. (Two additional release tests were conducted in dry air.) The primary objectives were to quantify and characterize fission product release under conditions postulated for a spent-fuel transportation accident and for a successfully terminated loss-of-coolant accident (LOCA). In simulated, controlled LOCA-type tests, release at the time of rupture proved to be more significant than the diffusional release that followed. Comparison of the release data for the dry-air tests with the release data of similarly conducted tests in steam indicated significant increases in the releases of iodine, ruthenium, and cesium in air. Various parameters that affect fission product release are discussed, and experimental observations and analysis of the chemical behavior of releasable fission products in inert, steam, and dry-air atmospheres are examined

  15. 77 FR 70543 - Pipeline Safety: Meeting of the Gas Pipeline Advisory Committee and the Liquid Pipeline Advisory...

    Science.gov (United States)

    2012-11-26

    ... for natural gas pipelines and for hazardous liquid pipelines. Both committees were established under... TRANSPORTATION Pipeline and Hazardous Materials Safety Administration Pipeline Safety: Meeting of the Gas Pipeline Advisory Committee and the Liquid Pipeline Advisory Committee AGENCY: Pipeline and...

  16. 78 FR 70623 - Pipeline Safety: Meeting of the Gas Pipeline Advisory Committee and the Liquid Pipeline Advisory...

    Science.gov (United States)

    2013-11-26

    ... gas pipelines and for hazardous liquid pipelines. Both committees were established under the Federal... Pipeline and Hazardous Materials Safety Administration Pipeline Safety: Meeting of the Gas Pipeline Advisory Committee and the Liquid Pipeline Advisory Committee AGENCY: Pipeline and Hazardous...

  17. 76 FR 80952 - Request for Nominations for Voting Members on a Public Advisory Committee; Food Advisory Committee

    Science.gov (United States)

    2011-12-27

    ... are adequately represented on advisory committees and, therefore, encourages nominations of qualified... consideration for membership on the Food Advisory Committee. Nominations received after February 27, 2012 will be considered for nomination to the committee if nominees are still needed. ADDRESSES:...

  18. News/Press Releases

    Data.gov (United States)

    Office of Personnel Management — A press release, news release, media release, press statement is written communication directed at members of the news media for the purpose of announcing programs...

  19. 75 FR 10490 - Joint Meeting of the Arthritis Drugs Advisory Committee and the Drug Safety and Risk Management...

    Science.gov (United States)

    2010-03-08

    ... the Drug Safety and Risk Management Advisory Committee; Notice of Meeting AGENCY: Food and Drug...: Arthritis Drugs Advisory Committee and the Drug Safety and Risk Management Advisory Committee....

  20. 28 CFR 1.11 - Advisory nature of regulations.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Advisory nature of regulations. 1.11 Section 1.11 Judicial Administration DEPARTMENT OF JUSTICE EXECUTIVE CLEMENCY § 1.11 Advisory nature of regulations. The regulations contained in this part are advisory only and for the internal guidance...

  1. 78 FR 17993 - Industry Advisory Panel; Notice of Open Meeting

    Science.gov (United States)

    2013-03-25

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Industry Advisory Panel; Notice of Open Meeting The Industry Advisory Group, formerly the Industry Advisory Panel, of the Bureau of Overseas Buildings Operations will meet on Friday, April 19, 2013 from 10:00...

  2. 7 CFR 23.4 - State Rural Development Advisory Council.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 1 2010-01-01 2010-01-01 false State Rural Development Advisory Council. 23.4 Section... Program § 23.4 State Rural Development Advisory Council. (a) The chief administrative officer of the administratively responsible State Land Grant University will appoint a State Rural Development Advisory...

  3. 76 FR 7231 - Wild Horse and Burro Advisory Board; Meeting

    Science.gov (United States)

    2011-02-09

    ... Bureau of Land Management Wild Horse and Burro Advisory Board; Meeting AGENCY: Bureau of Land Management... Wild Horse and Burro Advisory Board will conduct a meeting on matters pertaining to management and protection of wild, free-roaming horses and burros on the Nation's public lands. DATES: The Advisory...

  4. 75 FR 28849 - Renewal of Cultural Property Advisory Committee Charter

    Science.gov (United States)

    2010-05-24

    ... of Cultural Property Advisory Committee Charter SUMMARY: The Charter of the Department of State's Cultural Property Advisory Committee (CPAC) has been renewed for an additional two years. The Charter of the Cultural Property Advisory Committee is being renewed for a two-year period. The Committee...

  5. 77 FR 31682 - Renewal of Cultural Property Advisory Committee Charter

    Science.gov (United States)

    2012-05-29

    ... of Cultural Property Advisory Committee Charter SUMMARY: The Charter of the Department of State's Cultural Property Advisory Committee (CPAC) has been renewed for an additional two years. The Charter of the Cultural Property Advisory Committee is being renewed for a two-year period. The Committee...

  6. 75 FR 17158 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2010-04-05

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service..., 2010, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... jointly with the Flight 93 Memorial Task Force. Location: The meeting will be held at the Somerset...

  7. 76 FR 64102 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2011-10-17

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service... November 5, 2011, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... meeting will be held at the Flight 93 National Memorial Office, 109 West Main Street Suite 104,...

  8. 75 FR 43199 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2010-07-23

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service... 7, 2010, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... meet jointly with the Flight 93 Memorial Task Force. Location: The meeting will be held at the...

  9. 76 FR 4131 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2011-01-24

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service... February 5, 2011, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... meet jointly with the Flight 93 Memorial Task Force. Location: The meeting will be held...

  10. 75 FR 3488 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2010-01-21

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service. ACTION... meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory Commission will be... with the Flight 93 Memorial Task Force. Location: The meeting will be held at the Somerset...

  11. 77 FR 3793 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2012-01-25

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service... February 4, 2012, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... meeting will be held via teleconference at the Flight 93 National Memorial office, 109 West Main...

  12. 76 FR 18778 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2011-04-05

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service..., 2011, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... will be held at the Flight 93 National Memorial Office, 109 West Main Street Suite 104, Somerset,...

  13. 77 FR 24220 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2012-04-23

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service... meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory Commission will be... the Flight 93 National Memorial Office, 109 West Main Street, Suite 104, Somerset, PA 15501....

  14. 75 FR 65029 - Flight 93 National Memorial Advisory Commission

    Science.gov (United States)

    2010-10-21

    ... National Park Service Flight 93 National Memorial Advisory Commission AGENCY: National Park Service... November 13, 2010, meeting of the Flight 93 Advisory Commission. DATES: The public meeting of the Advisory... will meet jointly with the Flight 93 Memorial Task Force. Location: The meeting will be held at...

  15. 78 FR 59426 - Citizens Coinage Advisory Committee; Meeting

    Science.gov (United States)

    2013-09-26

    ... United States Mint Citizens Coinage Advisory Committee; Meeting ACTION: Notification of Citizens Coinage Advisory Committee October 18, 2013, Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee...

  16. 75 FR 70363 - Citizens Coinage Advisory Committee; Meeting

    Science.gov (United States)

    2010-11-17

    ... United States Mint Citizens Coinage Advisory Committee; Meeting ACTION: Notification of Citizens Coinage Advisory Committee November 19, 2010 Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee...

  17. 78 FR 14154 - Citizens Coinage Advisory Committee; Public Meeting

    Science.gov (United States)

    2013-03-04

    ... United States Mint Citizens Coinage Advisory Committee; Public Meeting ACTION: Notification of Citizens Coinage Advisory Committee March 11, 2013, Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory...

  18. 77 FR 57645 - Citizens Coinage Advisory Committee; Meeting

    Science.gov (United States)

    2012-09-18

    ... United States Mint Citizens Coinage Advisory Committee; Meeting ACTION: Notification of Citizens Coinage Advisory Committee September 21, 2012, Public meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee...

  19. 76 FR 34811 - Citizens Coinage Advisory Committee Meeting

    Science.gov (United States)

    2011-06-14

    ... United States Mint Citizens Coinage Advisory Committee Meeting ACTION: Notification of Citizens Coinage Advisory Committee June 27, 2011 Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee (CCAC)...

  20. 76 FR 2754 - Citizens Coinage Advisory Committee Meeting

    Science.gov (United States)

    2011-01-14

    ... United States Mint Citizens Coinage Advisory Committee Meeting ACTION: Notification of Citizens Coinage Advisory Committee January 19, 2011 Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee...

  1. 78 FR 57221 - Citizens Coinage Advisory Committee Meeting

    Science.gov (United States)

    2013-09-17

    ... United States Mint Citizens Coinage Advisory Committee Meeting ACTION: Notification of Citizens Coinage Advisory Committee September 18, 2013, public meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee...

  2. 76 FR 57806 - Citizens Coinage Advisory Committee Meeting

    Science.gov (United States)

    2011-09-16

    ... United States Mint Citizens Coinage Advisory Committee Meeting ACTION: Notification of Citizens Coinage Advisory Committee September 27, 2011, public meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory Committee...

  3. 78 FR 36034 - Citizens Coinage Advisory Committee; Public Meeting

    Science.gov (United States)

    2013-06-14

    ... United States Mint Citizens Coinage Advisory Committee; Public Meeting ACTION: Notification of Citizens Coinage Advisory Committee June 25, 2013, Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory...

  4. 78 FR 23635 - Citizens Coinage Advisory Committee; Public Meeting

    Science.gov (United States)

    2013-04-19

    ... United States Mint Citizens Coinage Advisory Committee; Public Meeting ACTION: Notification of Citizens Coinage Advisory Committee April 19, 2013, Public Meeting. SUMMARY: Pursuant to United States Code, Title 31, section 5135(b)(8)(C), the United States Mint announces the Citizens Coinage Advisory...

  5. 78 FR 66964 - International Space Station Advisory Committee; Charter Renewal

    Science.gov (United States)

    2013-11-07

    ... SPACE ADMINISTRATION International Space Station Advisory Committee; Charter Renewal AGENCY: National... International Space Station Advisory Committee. SUMMARY: Pursuant to sections 14(b)(1) and 9(c) of the Federal... charter of the International Space Station Advisory Committee is in the public interest in connection......

  6. 76 FR 28129 - Federal Advisory Committee on Insurance

    Science.gov (United States)

    2011-05-13

    ... Federal Advisory Committee on Insurance AGENCY: Departmental Offices, Treasury. ACTION: Notice of establishment of the Federal Advisory Committee on Insurance (FACI) and solicitation of applications for... establish the Federal Advisory Committee on Insurance. A Charter for the Committee has been prepared...

  7. 77 FR 1955 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2012-01-12

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, January 27, 2012, Time 11 a.m.-12:30 p.m... CONTACT: Ms. Susan Burch, Aerospace Safety Advisory Panel Administrative Officer, National Aeronautics...

  8. 75 FR 36697 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2010-06-28

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, July 16, 2010, 1 p.m. to 3 p.m. ADDRESSES... CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel Executive Director, National Aeronautics...

  9. 76 FR 36937 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2011-06-23

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, July 15, 2011, 10 a.m. to 12 p.m. ADDRESSES... INFORMATION CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel Executive Director, National...

  10. 76 FR 2923 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2011-01-18

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, February 4, 2011, 11:30 a.m. to 1:30 p.m... CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel Executive Director, National Aeronautics...

  11. 78 FR 36793 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2013-06-19

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel (ASAP). DATES: Friday, July 12, 2013, 09:00-10:00 a.m.... Harmony Myers, Aerospace Safety Advisory Panel Executive Director, National Aeronautics and...

  12. 76 FR 62455 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2011-10-07

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, October 21, 2011, 12:30 to 2 p.m. Central.... FOR FURTHER INFORMATION CONTACT: Ms. Susan Burch, Aerospace Safety Advisory Panel...

  13. 78 FR 1265 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2013-01-08

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. ] DATES: Friday, January 25, 2013, 10:00 a.m. to 11:00 a.m... CONTACT: Ms. Harmony Myers, Aerospace Safety Advisory Panel Executive Director, National Aeronautics...

  14. 75 FR 61219 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2010-10-04

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, October 22, 2010, 12:30 p.m. to 2 p.m... 77058. FOR FURTHER INFORMATION CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel...

  15. 78 FR 56941 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2013-09-16

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, October 11, 2013, 10:00 a.m. to 11:00 a.m.... FOR FURTHER INFORMATION CONTACT: Ms. Harmony Myers, Aerospace Safety Advisory Panel Executive...

  16. 75 FR 19662 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2010-04-15

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, April 30, 2010, 12:30 p.m. to 2:30 p.m... CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel Executive Director, National Aeronautics...

  17. 77 FR 58413 - Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2012-09-20

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, October 12, 2012, 12:00 p.m. to 1:00 p.m.... FOR FURTHER INFORMATION CONTACT: Ms. Harmony Myers, Aerospace Safety Advisory Panel Executive...

  18. 76 FR 19147 - Aerospace Safety Advisory Panel; Meeting.

    Science.gov (United States)

    2011-04-06

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting. AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, April 29, 2011, from 11 p.m. to 1 p.m..., FL 32899. FOR FURTHER INFORMATION CONTACT: Ms. Kathy Dakon, Aerospace Safety Advisory Panel...

  19. 78 FR 77501 - NASA Aerospace Safety Advisory Panel; Meeting

    Science.gov (United States)

    2013-12-23

    ... SPACE ADMINISTRATION NASA Aerospace Safety Advisory Panel; Meeting AGENCY: National Aeronautics and... forthcoming meeting of the Aerospace Safety Advisory Panel. DATES: Thursday, January 23, 2014, 1:00 p.m. to 2..., Houston, TX 77058. FOR FURTHER INFORMATION CONTACT: Ms. Marian Norris, Aerospace Safety Advisory...

  20. 77 FR 38090 - Aerospace Safety Advisory Panel; Meeting.

    Science.gov (United States)

    2012-06-26

    ... SPACE ADMINISTRATION Aerospace Safety Advisory Panel; Meeting. AGENCY: National Aeronautics and Space... meeting of the Aerospace Safety Advisory Panel. DATES: Friday, July 20, 2012, 11:30 a.m. to 12:30 p.m. EDT... FURTHER INFORMATION CONTACT: Ms. Harmony Myers, Aerospace Safety Advisory Panel Executive...