Sample records for MATERIALES PELIGROSOS (hazardous materials)
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1

Programa de Protección Ambiental y Bioseguridad en el Instituto Nacional de Psiquiatría Ramón de la Fuente/ Environmental protection and biosecurity program at the National Institute of Psichiatry Ramón de la Fuente

Nieto, Itzchel; Murillo, Susana; Rojo, Maricela; Asai, Miguel
2008-04-01

Resumen en español A partir de 1998, en el Instituto Nacional de Psiquiatría Ramón de la Fuente (INPRF) se iniciaron las actividades del Programa de Protección Ambiental y Civil (PPAyC). Sus objetivos son dar cumplimiento a los requisitos legales, prevenir riesgos, generar estrategias de atención a emergencias, capacitar a la población interna y mejorar el uso y aprovechamiento de los recursos institucionales. El propósito del presente trabajo es presentar los resultados obtenidos des (mas) pués de nueve años de trabajo del PPAyC en las áreas de manejo de residuos biológico-infecciosos, ahorro de energía eléctrica, uso y optimización de agua potable, control de emisiones a la atmósfera de los equipos fijos de combustión, seguridad radiológica y simulacros de emergencia. Residuos peligrosos biológico-infecciosos (RPBI). Con el objeto de reducir riesgos y prevenir accidentes, en el INPRF se implementó un procedimiento operativo para el manejo de los residuos peligrosos biológico-infecciosos en todas las áreas generadoras. Los resultados de las estrategias aplicadas muestran que la cantidad de los residuos y sus costos de manejo han disminuido gradualmente y se han observado mejores prácticas de manejo de residuos por parte de los trabajadores involucrados, con la consecuente reducción de riesgos. Ahorro de energía. Ante la necesidad de optimizar el uso de la energía, disminuir costos y crear conciencia entre la población, se implementó en todo el país el programa de ahorro de energía. Los resultados obtenidos muestran que, a partir de la implementación de las estrategias de ahorro en el INPRF, se obtuvo una reducción en el consumo de energía de 9.6% anual acumulado entre 2004 y 2005. Uso y aprovechamiento de agua potable. A partir de 2003, en el INPRF se implementaron medidas destinadas a disminuir el consumo per capita de agua potable que se recibe por la red municipal y optimizar su uso en las instalaciones. Como resultado se observó una disminución gradual en el uso de agua potable, de tal manera que, de los 170 litros/persona que se utilizaban en 2003, en 2006 únicamente se utilizaron 98 litros/persona. Seguridad radiológica. El programa de seguridad radiológica en el INPRF se inició con el objeto de minimizar los riesgos y efectos adversos que pudieran generar los materiales radiactivos en la salud del personal expuesto ocupacionalmente (POE), prevenir accidentes y cumplir con la normatividad. Como resultado de estas acciones, ningún POE ha excedido el máximo valor de dosis total acumulada (DTA) de radiaciones ionizantes permitido por la Comisión Nacional de Seguridad Nuclear y Salvaguardas (CNSNS) para cuerpo total. Por otro lado, a la fecha no se han registrado accidentes o contaminación con materiales o residuos radiactivos. Simulacros. En el INPRF se implementó un programa de protección civil, cuya labor principal fue la de capacitar periódicamente a los trabajadores para responder ante situaciones de emergencia. Como resultado de los simulacros de sismo que se han realizado (40 parciales y siete generales), se han reducido gradualmente los tiempos de desalojo de los inmuebles y la detección oportuna y sistemática de elementos de seguridad que requieren ser reparados o instalados. Emisiones a la atmósfera. En cumplimiento con la normatividad vigente en la Ciudad de México, en el INPRF se elaboró el programa de mantenimiento anual preventivo y correctivo de las dos calderas que dotan de agua caliente a la institución. Como resultado, se detectó la necesidad de sustituir los equipos por otros que utilizaran tecnología más limpia. Esto favoreció el cumplimiento de los límites máximos permitidos para emisiones gaseosas contaminantes y los costos de mantenimiento se redujeron. Discusión La implementación de diversas estrategias en materia de protección ambiental y civil y la capacitación reducen los riesgos del personal y protegen los bienes inmuebles y el entorno de la ciudad que habitamos. Resumen en inglés Since the beginning, mankind has been subjected to various natural disasters such as floods, hurricanes, earthquakes, droughts and wildfires. Therefore, societies have to organize themselves in order to cope with nature, provide support to each other and to protect the most vulnerable individuals and their properties. Depending on their social organization, some countries have developed their response strategies in the field of civil protection faster than others. After S (mas) eptember 19th, 1985, when an earthquake of Richter magnitude of 8.1 affected Mexico City, the Mexican government decided to establish the guidelines of the National Civil Protection System (SINAPROC). After a few years, the Environmental Protection and Ecological Equilibrium Law was published. This environmental protection regulation is specific and is directed to minimize the negative impact over the environment that could be generated through industrial activities, as well as from research centers, hospitals, and others institutions. To ensure full compliance with the Mexican regulations, in 1998 the Instituto Nacional de Psiquiatría Ramón de la Fuente (INPRF) initiated the Environmental and Civil Protection Program (ECPP). The aim of this program is to meet the legal and operational requirements applicable to an institution which has biomedical research, administration and hospitalization areas. In addition, the ECPP is in charge of giving workers training and generating specific strategies for environmental management in all activities that take place at the Institute. By establishing compliance guidelines to meet the government regulations on environmental and civil protection, the INPRF would develop strategies for minimizing risks, as well as staff training to enhance the use of institutional resources and reduce the response time to deal with emergencies. Objective Since its foundation, the environmental and civil protection program at the INPRF has had two basic objectives: 1. to attend the legal and operative requirements in a third level institution conformed by hospitalization, teaching, research and administrative areas, and 2. to offer continuous training to the internal population of a hospital in order to minimize work risks, to make an optimum use of the institutional resources and to reduce the response time of the workers in emergency situations. To develop and implement such an environmental and civil protection program, the following areas have been considered: Biohazardous wastes, saving electricity, use and optimization of drinking water, control of air emissions from stationary combustion equipment, radiation safety and emergency response procedures. The purpose of this work is to show the results achieved by ECPP after nine years since its inception. Results Biohazardous wastes (BW), by definition, are those materials generated during medical care which contain biological agents that may cause adverse effects to human health and the environment. BW are generated frequently in biomedical research areas, clinical laboratories and hospitals. In order to minimize risks and prevent accidents, INPRF implemented since 1997 an operating procedure for handling biohazardous wastes in all generating areas. Some of those strategies are directed to training medical personnel (physicians, nurses and clinical laboratory technicians) about the identification and classification of biohazardous wastes. Moreover, we have designed and distributed different kinds of written ads in order to help people to recognize and separate wastes correctly. Besides the latter actions, the INPRF hired a registered and certificated company which provides the proper recollection, treatment and final disposal of biological wastes, according to current legal ordinances. As a result of those strategies in the handling of biohazardous wastes in the Institution, the amount of wastes and their disposal costs have gradually decreased. Through staff training, personnel have learned to do a proper segregation of wastes, reducing the quantities of BW and therefore reducing risks. Energy saving. As a way to optimize the institutional resources, as well as reducing costs and creating awareness among the people, the INPRF's Energy Saving program was implemented in 2003. Since 2003, when ECPP began implementing the saving strategies, accumulated energy consumption per year had a 9.6% reduction between 2004 and 2005. Use of potable water. In the search for strategies to optimize the use of potable water that is received through the municipal network, in 2003 the INPRF-ECPP implemented measures aimed not only at reducing the per capita consumption of potable water but also to give it a proper use on the institution areas. As a result of these saving measures, there was a gradual decrease in the use of drinking water. So, from the 170 liters/person-day used in 2003, during 2006 only 98 liters/person-day were used. Radiological safety. Due to the adverse effects to human health that could result from exposure to radioactive materials, an institution that uses this kind of material in its basic biomedical research area must implement the necessary actions to minimize the risk of contamination for users and work areas. For that reason, the INPRF began the Radiological Safety Program, which had as its main objectives to minimize the risks and to prevent accidents involving radioactive materials based on regulation compliance. As a result of these strategies, the maximum value of the total dose accumulated per year of ionizing radiation received by personnel exposed who has carried out research in this institution in recent years has been of 3.14 mSv. Therefore, it had not exceeded the annual limit dose of ionizing radiation allowed for the total body by the Comisión Nacional de Seguridad Nuclear y Salvaguardas (CNSNS) of 50 mSv = 5rem. To date, there has been no accidents or contamination with radioactive materials or wastes in the INPRF. Emergency simulations. Considering the need of being prepared for emergencies and to comply with the regulation that establishes the compulsory conducting simulations in INPRF, the Internal Committee for Civil Protection (ICPC) conducts periodic training of employees on risk prevention, through courses and simulations of situations of earthquake, attempt of fire, handling of hazardous substances spills and first aid. As a result of the earthquake simulations that have been carried out at the INPRF, the time of evacuation of workers, hospitalized patients and floating population from buildings has gradually reduced. An additional advantage of conducting emergency simulations has been the early detection of systematic security features that need to be repaired or installed. Emissions to air. In recent years, increasingly strict regulation and monitoring of gaseous emissions generated by stationary and mobile sources in Mexico City has been established. In order to comply with the current regulations, it became necessary to develop a program of annual preventive and corrective maintenance of combustion equipment that is used to provide hot water, and to make periodic analysis of gaseous emissions. Among the parameters that have to be reported are: temperature of combustion gases, monoxide and dioxide carbon content, sulfur dioxide, nitrogen dioxide percentages and generated soot.

Scientific Electronic Library Online (Spanish)

4

Un método reproducible para obtener peg biramificado monofuncional de alta pureza/ A reproducible method for obtaining a 2-arms monofunctional peg with high purity

Ramón, José A.; Peniche, Carlos; Castro, Fidel R.; Sáez, Vivian M.; Colás, Rosa M.; Páez, Rolando
2009-01-01

Resumen en inglés PEGylation has become a widely applied technique to enhancing in vitro and in vivo stability of therapeutic proteins and to increasing materials biocompatibility. PEG branched structures have proven useful for protein and peptide modification. Furthermore, they may be better than linear structures for many purposes. This paper describes an improved procedure for obtaining 2-arms PEG based on L-lysine. The efficiency of the synthesis was not related to moisture of the raw (mas) materials. This procedure does not use hazardous reagents as previous protocols do. It implemented a purification process for obtaining the desired structure with high purity ( > 99%). Finally, the procedure described here allows the obtaining of others PEGylation reagents.

Scientific Electronic Library Online (Spanish)

5

Tratamiento del polvo de aluminio mediante disolución acuosa

López Gómez, Félix Antonio; Medina, J.; Tayibi, H.; Peña, C.; López Delgado, Aurora
2004-10-30

Digital.CSIC (Spain)

6

Trace elements, pH and organic matter evolution in contaminated soils under assisted natural remediation: a four-year field study.

Madejón, Engracia; Madejón, Paula; Burgos, Pilar; Pérez de Mora, Alfredo; Cabrera, Francisco
2009-03-15

Digital.CSIC (Spain)

7

Trace elements, pH and organic matter evolution in contaminated soils under assisted natural remediation: A 4-year field study

Madejón, E.; Madejón, P.; Burgos, P.; Pérez de Mora, A.; Cabrera, Francisco

A 4-year study was undertaken on the effect of three amendments (biosolid compost (BC), sugar beet lime (SL), and combination of leonardite plus sugar beet lime (LESL)) on reclamation of a moderately trace element-contaminated soil under field conditions. Results showed that organic C increased in B...

DRIVER (Spanish)

8

Trace elements, pH and organic matter evolution in contaminated soils under assisted natural remediation: A 4-year field study

Madejón, Engracia; Madejón, Paula; Burgos, Pilar; Pérez de Mora, Alfredo; Cabrera, Francisco
2008-01-01

Digital.CSIC (Spain)

9

The radiological impact and restrictions on phosphogypsum waste applications

Tayibi, H.; Gascó, Catalina; Navarro, Nuria; López Delgado, Aurora; Alguacil, Francisco José; López Gómez, Félix Antonio
2009-11-01

Digital.CSIC (Spain)

10

The adsorption of chromium (VI) from industrial wastewater by acid and base-activated lignocellulosic residues

Álvarez Rodríguez, Patricia; Blanco Rodríguez, Clara; Granda Ferreira, Marcos

6 pages, 4 figures, 4 tables.-- PMID: 17126488 [PubMed].-- Available online Oct 26, 2006. | This study deals with the adsorption of Cr(VI) from synthetic and industrial wastewater, produced by a sewage plant. The activated carbons were prepared from a lignocellulosic raw material by thermal treatmen...

DRIVER (Spanish)

11

The adsorption of chromium (VI) from industrial wastewater by acid and base-activated lignocellulosic residues

Álvarez Rodríguez, Patricia; Blanco Rodríguez, Clara; Granda Ferreira, Marcos
2007-06-01

Digital.CSIC (Spain)

12

Systematic InSAR Monitoring of African Active Volcanic Zones: What we have learned in three years, or a harvest beyond our expectations

D'Oreye, N.; Fernández Torres, José; González Méndez, Pablo José; Kervyn, F.; Wauthier, C.; Frischknecht, C.; Calais, E.; Heleno, S. I. N.; Cayol, V.; Oyen, A.; Marinkovic, P.
2008-01-01

Digital.CSIC (Spain)

13

Stabilization/solidification of municipal solid waste in cemented matrices

Goñi Elizalde, Sara; Guerrero Bustos, Ana María; Macías, Antonio
2009-11-01

Digital.CSIC (Spain)

17

Sequestration and in vivo effect of lead on DE2009 microalga, using high-resolution microscopic techniques

Maldonado, Juan; Ríos, Asunción de los; Esteve, Isabel; Ascaso, Carmen; Puyen, Zully M.; Brambilla, Cecilia; Solé, Antoni
2010-01-01

Digital.CSIC (Spain)

18

Resistance of class C fly ash belite cement to simulated sodium sulphate radioactive liquid waste attack

Guerrero Bustos, Ana María; Goñi Elizalde, Sara; Rodríguez Allegro, Virgina

5 pages.-- Final full-text version of the paper available at: http://dx.doi.org/10.1016/j.jhazmat.2008.04.086. | The resistance of class C fly ash belite cement (FABC-2-W)to concentrated sodium sulphate salts associated with low level wastes (LLW) and medium level wastes (MLW) is discussed. This stu...

DRIVER (Spanish)

19

Resistance of class C fly ash belite cement to simulated sodium sulphate radioactive liquid waste attack

Guerrero Bustos, Ana María; Goñi Elizalde, Sara; Rodríguez Allegro, Virgina
2008-04-29

Digital.CSIC (Spain)

20

Reported tailings dam failures.A review of the European incidents in the worldwide context

Rico, M.; Benito, G.; Salgueiro, A. R.; Díez-Herrero, A.; Pereira, H.

A detailed search and re-evaluation of the known historical cases of tailings dam failure was carried out. A corpus of 147 cases of worldwide tailings dam disasters, from which 26 located in Europe, was compiled in a database. This contains six sections, including dam location, its physical and cons...

DRIVER (Spanish)

21

Reported tailings dam failures.A review of the European incidents in the worldwide context

Rico, M.; Benito, Gerardo; Salgueiro, A. R.; Díez-Herrero, A.; Pereira, H.
2008-04-01

Digital.CSIC (Spain)

22

Recovery of aluminium from a hazardous waste by precipitation as boehmite

Gonzalo Delgado, Laura; López Delgado, Aurora; López-Andrés, S.; López Gómez, Félix Antonio; Alguacil, Francisco José
2009-11-01

Digital.CSIC (Spain)

23

Quemadores de gas cerámicos

Miranzo, Pilar; Osendi, María Isabel; García, E.
2003-09-01

Digital.CSIC (Spain)

24

Problemática geológico-ambiental de los tiraderos de la Cuenca de Cuitzeo, norte del estado de Michoacán/ Geological and environmental issues about the landfills in the Cuitzeo Basin, northern State of Michoacán

Israde-Alcántara, Isabel; Buenrostro-Delgado, Otoniel; Garduño-Monroy, Víctor Hugo; Hernández-Madrigal, Víctor Manuel; López Granados, Erna
2008-01-01

Resumen en español La Cuenca de Cuitzeo forma parte de la macro-cuenca del Lerma. Cubre un área de 4,000 km² que es ocupada por más de 1,100,000 habitantes que viven en una depresión de origen tectónico que ha sido rellenada por depósitos volcanosedimentarios. Los paisajes están conformados por lomeríos pequeños, edificios y mesetas volcánicas, y depósitos de origen fluviolacustre. Los sitios de vertido de basura han operado sin un diseño de ingeniería que permita el control de (mas) lixiviados y de biogases generados por las actividades urbanas, agrícolas e industriales; estas últimas incluyen residuos peligrosos asociados con industrias de pequeña escala establecidas en la cuenca de Cuitzeo. El tiradero más grande, localizado al este de la ciudad de Morelia, funciona desde 1985 y produce 700 toneladas por día de residuos que se integran a un total de 562,000 toneladas en la cuenca. Los resultados indican que la mayoría de los sitios de confinamiento carecen de un substrato impermeable siendo también la porosidad del substrato relativamente alta, ya que consiste en flujos de lava muy fracturados, depósitos de caída no consolidados, diatomitas y depósitos fluviales. Todas estas fitologías son vías de migración de aguas contaminadas hacia la cuenca. El presente trabajo geológico-ambiental permite comprender las características de la Cuenca de Cuitzeo, con el objeto de establecer métodos de ingeniería y de gestión para minimizar el impacto ambiental y de salud pública de los tiraderos en zonas urbanas y periurbanas. Resumen en inglés The Cuitzeo basin is part of the Lerma basin, located in west central Mexico. It covers an area of ca. 4,000 km² that is occupied by over 1,100,000 inhabitants living in a tectonic basin where the main infill consists of volcano-sedimentary materials. Landforms comprise small hills, volcanic edifices and plateaus, and tilted blocks of fluviolacustrine sediments. Waste disposal sites are operating without engineering design plans that would allow for the control of leacha (mas) tes and bio-gas generated by the urban, agricultural and industrial activities, which in this last case include hazardous waste associated with small-scale industries established in the Cuitzeo basin. The biggest dump, located east of the city of Morelia, has been operating since 1985 and admits 700 tons of waste per day that have added to a total of around 562,000 tons of solid wastes already deposited in the basin. The results of this study indicate that most of the sites lack impermeable subsurface strata. The porosity of the subsurface strata at many of the sites is relatively high, since it consists mainly of highly fractured basaltic lava flows, unconsolidated volcanic fall deposits, diatomites and fluvial deposits. All these lithologies provide ways for the migration of contaminated waters towards the basin. This article aims to provide a better understanding of the characteristics of the Cuitzeo basin in order to establish the engineering methods for minimizing the environmental and public health impact in urban and periurban areas.

Scientific Electronic Library Online (Spanish)

26

Involvement of citizenship in hazardous waste management and in use of recycling centres in Madrid city (Spain)

Díaz, M. J.; Martínez, E.; Piñeiro, C.; Palavecions, M.; Jiménez Morales, Antonia; García, D.; Benayas, J.; López Gómez, Félix Antonio; Puertas, F.; Alguacil, Francisco José; Guerrero Bustos, Ana María
2009-11-01

Digital.CSIC (Spain)

28

Información de salud en la prensa diaria argentina: adaptación al español y validación del cuestionario Index of Scientific Quality para medir su calidad/ Validation of a questionnaire to assess the quality of health information in Argentinian newspapers

Biondo, Emiliano; Khoury, Marina Claudia
2005-09-01

Resumen en español Introducción. La prensa diaria constituye una fuente de acceso a la información de salud y puede influenciar sobre la utilización de servicios sanitarios. La calidad de las noticias publicadas en periódicos de países desarrollados es subóptima. Objetivo. Adaptar al castellano y evaluar la confiabilidad del cuestionario Index of Scientific Quality; medir la calidad de la información de salud publicada en la prensa diaria argentina durante los años 2000 a 2002; dete (mas) rminar el nivel de lectura requerido (en grados de escolarización) para comprender los textos; analizar los factores asociados a la calidad. Materiales y métodos. La adaptación consistió en la traducción del Index of Scientific Quality, retrotraducción y prueba piloto. Para la confiabilidad, se seleccionaron artículos con más de 300 palabras referidos a tratamiento, prevención, diagnóstico, efectos del estilo de vida y exposiciones peligrosas sobre la salud. Dos médicos calificaron independientemente 129 artículos. Se cuantificó la concordancia interobservador e intraobservador para cada ítem mediante el coeficiente de correlación intraclase (IC95%). La calidad se evaluó en 210 artículos seleccionados al azar. Se asignaron valores entre 0-100 puntos. El nivel de lectura se evaluó mediante el método gráfico de FRY. Se exploró la relación entre calidad y otras variables mediante un modelo de regresión lineal múltiple. Resultados. La concordancia interobservador osciló entre 0,48 (0,34-0,61) y 0,67 (0,56-0,75); la concordancia intraobservador entre 0,51 (0,37-0,63) y 0,95 (0,93-0,96); la consistencia interna (alfa de Cronbach), 0,88; la calidad [mediana (rango intercuartílica)]=25 puntos (16,7 y 33,3), y el nivel de lectura [promedio (IC95%)]=10,4 grados (10,2 y 10,6). Conclusiones. La calidad de la información fue deficitaria. No se encontraron factores que expliquen la baja calidad. El nivel de lectura resultó una barrera de acceso a la información. Resumen en inglés Introduction. The daily press is an important source of health information and may influence health care utilization. However, medical reports published in newspapers from developed countries have shown a poor quality. Objectives. The reliability of the questionnaire Index of Scientific Quality was evaluated by using it to measure the scientific quality of health information published by Argentinian newspapers between 2000 and 2002. It assessed the readability of the text (mas) s in grade levels and explored the relationship between quality and other factors. Materials and methods. The Spanish adaptation of the instrument consisted in translation, back-traslation and pilot study. The reliability was assessed by applying the instrument to newspaper articles with more than 300 words that discussed therapy, diagnosis, prevention, lifestyle effects, and hazardous exposure. Two physicians independently graded 129 articles. Inter-observer and intra-observer concordance was quantified for each item with the intra-class correlation coefficient (CI95%). To measure scientific quality, a randomized sample of 210 articles was assessed. Each received a mark that ranged from 0 to 100. Readability was determined by the FRY graph method. The relationship between quality and other variables was explored with multiple linear regression analysis. Results. The inter-rater concordance varied between 0.48 (0.34-0.61) and 0.67 (0.56-0.75). Intra-rater concordance varied from 0.51 (0.37-0.63) to 0.95 (0.93-0.96). The internal consistency (Cronbach’s alpha) was 0.88. The quality-of-health-information was rated at 25 points (16.7, 33.3) [median (intercuartil range)]. The reading level was assessed to be at the 10.4 grade (10.2-10.6) [mean (CI 95%)]. Conclusions. Quality of the health information was greatly deficient; however, no specific factors were related with quality. Readability was probably a key barrier for access to the health information.

Scientific Electronic Library Online (Spanish)

29

Geomorfología urbana de San Carlos de Bariloche y su influencia en los peligros naturales, Rio Negro/ Urban geomorphology of San Carlos de Bariloche and its influence in the natural hazards, Rio Negro

Pereyra, F.X.
2007-06-01

Resumen en español La ciudad de San Carlos de Bariloche se localiza en el sector norte de los Andes patagónicos (71°10´-71°23´O y 41°10´-41°15´S). Ha experimentado un sostenido crecimiento poblacional en los últimos tiempos duplicando su población en las dos décadas pasadas, hasta cerca de 100.000 habitantes. Se han realizado una serie de mapas temáticos y sobre la base de los mismos se realizaran los mapas de integración y síntesis. En la presente contribución se presentan (mas) los resultados de la cartografía geomorfológica realizada (a escala 1:50.000). Dominan las geoformas glaciarias, tanto erosivas como depositacionales. Consecuentemente, las pendientes son altas y los materiales superficiales gruesos. Asimismo, se analizan las relaciones existentes entre los principales rasgos del paisaje y los procesos de peligrosidad natural. Los principales problemas ambientales considerados son inundaciones, sedimentación (aluvionamiento), erosión hídrica (carcavamiento y erosión lateral) e inestabilidad de pendientes (incluyendo avalanchas de nieve, deslizamientos, flujos de detritos y caídas de rocas). Resumen en inglés San Carlos de Bariloche city is located in Northern Patagonian Andes (71°10´-71°23´O and 41°10´-41°15´S). In last decades, this town has experienced a sustained urban growth, duplicating the number of its inhabitants to nearly 100,000 inhabitants. This fact resulted in a progressive advance of population over former natural areas and the occupation of non suitable terrains. In order to deal with this problem a geo-environmental survey was done at 1:50,000 scale. T (mas) his paper present the results of the geomorphological mapping. Glacial landforms, depositional and erosional forms, are the main features. Consequently, slopes are steep and superficial materials coarse. Landscape main features and their relation with main hazardous processes are studied. The main environmental problems considered are floodings, slope instability due to mass wasting processes (including rock falls, flows, rock and snow avalanches and landslides), sedimentation and hydric erosion.

Scientific Electronic Library Online (Spanish)

30

Floods from tailings dam failures

Rico, Mayte; Benito, Gerardo; Díez-Herrero, A.
2008-06-15

Digital.CSIC (Spain)

31

Floods from tailings dam failures

Rico, M.; Benito, Gerardo; Díez-Herrero, A.
2008-06-15

Digital.CSIC (Spain)

32

Evolución de las propiedades mecánicas de un residuo de la metalurgia secundaria del aluminio estabilizado con yeso

Tayibi, H.; Pérez, C.; López Gómez, Félix Antonio; López Delgado, Aurora
2005-08-01

Digital.CSIC (Spain)

33

Evaluación de los efectos del glifosato y otros plaguicidas en la salud humana en zonas objeto del programa de erradicación de cultivos ilícitos/ Effects of aerial applications of the herbicide,glyphosate and insecticides on human health

Varona, Marcela; Henao, Gloria Lucía; Díaz, Sonia; Lancheros, Angélica; Murcia, Álix; Rodríguez, Nelcy; Álvarez, Víctor Hugo
2009-09-01

Resumen en español Introducción. El Programa de Erradicación de Cultivos Ilícitos con Glifosato se ejecuta dando cumplimiento a lo establecido en el Plan de Manejo Ambiental. Objetivo. Explorar los posibles efectos del glifosato y otros plaguicidas sobre la salud humana como resultado de las aspersiones aéreas. Materiales y métodos. Se realizó un estudio descriptivo en 112 individuos procedentes de las áreas asperjadas de los departamentos de Huila, Tolima, Putumayo, Guaviare, Santan (mas) der, Antioquia, Magdalena y La Guajira, durante 2005 y 2006. Se aplicó una encuesta y se recolectaron muestras de orina para la determinación de glifosato, y de sangre, para la determinación de acetilcolinesterasa y organoclorados. Se llevó a cabo un análisis simple y se exploraron las posibles asociaciones. Resultados. El 50,0% (56 individuos) de la población manifestó el uso de plaguicidas en su trabajo. El tiempo que llevaban utilizando los plaguicidas fue de 84,8 meses y refirieron aplicar plaguicidas 5,6 horas al día. El predominio de los plaguicidas usados fue extremadamente tóxico. De 39,6% de los individuos a quienes se les cuantificó glifosato, 64,3% reportaron su uso en actividades agrícolas. Se encontró una relación estadísticamente significativa entre el uso de glifosato terrestre (manual) y los niveles de este herbicida en orina (OR=2,54; IC95% 1,08-6,08). Conclusión. No hubo hallazgos concluyentes entre la exposición a glifosato empleado en la erradicación de cultivos ilícitos y los efectos en la salud, debido a que se halló exposición ocupacional concomitante por la misma sustancia y por otras de mayor toxicidad que el glifosato. Resumen en inglés Introduction. The herbicide glyphosate is administered aerially by the Program to Eradicate Illicit Crops Program and is undertaken in rigorous compliance with the Environmental Management Plan. Objective. The effects of the glyphosate herbicide and other aerially applied insecticides were measured to determine possible impact on human health. Materials and methods. In 2006-2006, a survey was taken of 112 individuals living in herbicide-treated areas of the Colombian prov (mas) inces of Huila, Tolima, Putumayo, Guaviare, Santander, Antioquia, Magdalena and La Guajira. Samples of blood were examined for presence of acetylcholinesterase and organochlorine insecticides; urine was analyzed for glyphosate and its metabolites. Results. Fifty percent (50%) of the individuals sampled acknowledged the use of control chemicals as part of their work. The mean exposure time to the chemicals was 84.4 months, with a mean daily exposure of 5.6 hours. The most commonly used pesticides were of category I--extremely hazardous. In individuals sampled for glyphosate (39.6% of the total), 64.3% indicated the use of this herbicide at ground level in agricultural work. A statistically significative relationship was found between the use of glyphosate at ground level, and the concentration levels of glyphosate in the urine samples (odds ratio=2.54, 95% CI: 1.08 to 6.8). Conclusion. These data did not show a relationship between the aerial sprayings of glyphosate for illicit crops eradication and an impact on human health, nor with occupational exposure to this and other chemicals (insecticides) with a high levels of toxicity.

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Estudio del comportamiento térmico del polvo de aluminio estabilizado con el yeso

López Delgado, Aurora; Medina, J.; Alonso, P.; Tayibi, H.; Pérez, C.; López Gómez, Félix Antonio
2006-02-06

Digital.CSIC (Spain)

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Efficiency of fly ash belite cement and zeolite matrices for immobilizing cesium

Goñi Elizalde, Sara; Guerrero Bustos, Ana María; Lorenzo García, M.ª Paz

10 pages.-- Final full-text version of the paper available at: http://dx.doi.org/10.1016/j.jhazmat.2006.04.059. | The efficiency of innovative matrices for immobilizing cesium is presented in this work. The matrix formulation included the use of fly ash belite cement (FABC-2-W) and gismondine-type N...

DRIVER (Spanish)

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Efficiency of fly ash belite cement and zeolite matrices for immobilizing cesium

Goñi Elizalde, Sara; Guerrero Bustos, Ana María; Lorenzo García, M.ª Paz
2006-01-01

Digital.CSIC (Spain)

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Effects of organic composts on soil properties: Comparative evaluation of source-separated and non source-separated composts

Albaladejo Montoro, Juan; García Izquierdo, Carlos; Ruiz Navarro, Antonio; García-Franco, N.; Barbera, G. G.
2009-11-01

Digital.CSIC (Spain)

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Durability of class C fly ash belite cement in simulated sodium chloride radioactive liquid waste: Influence of temperature

Guerrero Bustos, Ana María; Goñi Elizalde, Sara; Rodríguez Allegro, Virgina

4 pages.-- Final full-text version of the paper available at: http://dx.doi.org/10.1016/j.jhazmat.2008.05.151. | This work is a continuation of a previous durability study of class C fly ash belite cement (FABC-2-W) in simulated radioactive liquid waste (SRLW) that is very rich in sulphate salts. Th...

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Conditions favouring catastrophic landslides on Tenerife (Canary Islands)

Hürlimann, Marcel; Ledesma, Alberto; Martí Molist, Joan
1999-01-01

Digital.CSIC (Spain)

43

Carbon-Enriched coal fly ash as a precursor of activated carbons for SO2 Removal

Izquierdo Pantoja, María Teresa; Rubio Villa, Begoña; Elsevier
2007-11-22

Digital.CSIC (Spain)

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Application of response surface methodological approach to optimise Reactive Black 5 decolouration by crude laccase from Trametes pubescens

Roriz, Margarida S.; Osma, Johann F.; Teixeira, J. A.; Rodríguez Couto, S.

Response surface methodology (RSM) was applied to optimise the decolouration of the diazo dye Reactive Black 5 (RB5) by crude laccase from the white-rot fungus Trametes pubescens. The presence of the redox mediator 1-hydroxybenzotriazole (HBT) greatly improved the decolouration levels of RB5 by crud...

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Adsorption of naphthalene from aqueous solution on activated carbons obtained from bean pods

Cabal Álvarez, Belén; Budinova, Temenuzhka; Ovín Ania, M.ª Concepción; Tsyntsarski, Boyko; Parra Soto, José Bernardo

7 pages, 5 figures, 4 tables. -- PMID: 18541368 [PubMed]. -- Available online 3 May 2008. | The preparation of activated carbons from bean pods waste by chemical (K2CO3) and physical (water vapor) activation was investigated. The carbon prepared by chemical activation presented a more developed poro...

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Adsorption of naphthalene from aqueous solution on activated carbons obtained from bean pods

Cabal Álvarez, Belén; Budinova, Temenuzhka; Ovín Ania, M.ª Concepción; Tsyntsarski, Boyko; Parra Soto, José Bernardo; Petrova, Bilyana
2009-01-30

Digital.CSIC (Spain)

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Accidentes de la mano en Trabajadores de la Costa Oriental del Lago de Maracaibo del Estado Zulia, Venezuela, 1986-1993

Sirit-Urbina, Yadira; Fernández-D´Pool, Janice; Lubo-Palma, Adonías
2002-04-01

Resumen en español Con el objeto de analizar la frecuencia y las causas de accidentes de la mano en trabajadores de la Costa Oriental del Lago de Maracaibo del Estado Zulia, se obtuvieron los datos de los informes de accidente de trabajo registrados por el Instituto Venezolano de los Seguros Sociales. El accidente ocupacional de la mano fue definido como toda lesión traumática de la mano, dedo o muñeca ocurrida mientras el individuo estuvo trabajando, que produjo pérdida del tiempo de t (mas) rabajo posterior al día de la lesión y que resultó de la exposición a un agente riesgoso. Las variables analizadas fueron: edad, severidad, actividad económica, agente material, causa mecánica, naturaleza de la lesión, tipo de accidente y acto inseguro. Para determinar el riesgo de accidente de la mano fue usado el índice de frecuencia. En el período estudiado ocurrieron 2.546 accidentes de la mano que representaron el 36% del total de accidentes laborales, el 96% fueron leves, 5% incapacitantes y en el 0,1% ocurrió la muerte del trabajador. En 72% se afectaron los dedos, en el 22% las manos y en el 6% las muñecas. La mayor frecuencia de los accidentes correspondió a la explotación de minas y canteras con una tasa de 123,1 por mil. El grupo etario más afectado fue el de 20 a 29 años (42%). Las heridas y contusiones, así como, los aplastamientos fueron las lesiones más frecuentes (39% y 36% respectivamente). Las pisadas sobre, choques contra y golpes por objetos constituyeron los tipos de accidentes más importantes. El 46% de los agentes productores de accidentes fueron los materiales, sustancias y radiaciones. Se concluye que la tasa de accidente laboral de la mano es muy alta en la explotación de minas y canteras, constituyendo la principal causa de discapacidad laboral. Resumen en inglés In order to analyze the frequency, injury rate and cause of on site accidents to the hands of workers on the east coast of lake of Maracaibo in Zulia State, data was obtained from the accident reports registered with the Venezuelan Institute of Social Security. An occupational hand injury was defined as a traumatic injury to the hands, fingers or wrists that occurred while the employee was at work; that resulted from a single exposure to a hazardous agent. The following v (mas) ariables were analyzed: age, severity, economic activity, material agent, mechanic cause, type of injury, type of accident and unsafe action. The frequency rate was used to analyze the annual accident rate. During the period under study 2.456 injuries to the hand were registered, representing 36% of the total injuries reported; 95% were light injuries, 5% incapaciting and two cases resulted in the death of the worker. 72% of the injuries were located in the fingers, 22% in the hands and 6% in the wrists. The greatest frequency of injuries were found in the economic activity in mines and quarries with a rate of 123.1 per thousand. The age group most affected was of 20-29 years (42%), Wounds or contusions and crushings were the injuries most commonly reported, in 39% and 36% of the cases respectively. The main type of injuries were caused by run overs, running into or blows from objects. The principal agents causing injuries were materials, substances and radiations in 45% of the cases. It is concluded that the hand injury rate is very high in the exploitation of mines and quaries and represents the main cause of worker’s disability.

Scientific Electronic Library Online (Spanish)