Sample records for CROMO 63 (chromium 63)
from WorldWideScience.org

Sample records 1 - 5 shown.



1

Treatment of solid and liquid effluents from tan-yards for removing and recovering the chromium in the effluents

Amer, Sebastián; Amutio, Guillermo; Cot Cosp, Jaime; Cuadra Herrera, Antonio de la; Limpo, José Luis; Luis Martín, Ángel; Manich, Albert M.
1994-08-18

Digital.CSIC (Spain)

2

Niveles de Cromo y Alteraciones de Salud en una Población Expuesta a las Actividades de Curtiembres en Bogotá, Colombia/ Chromium levels and their relationship with alterations in the health of tannery workers living and working in Bogotá, Colombia

Cuberos, Esther; Rodriguez, Alba I; Prieto, Edgar
2009-04-01

Resumen en español Objetivo Determinar si los niveles de cromo en orina están más altos de los permitidos y contrastarlos con alteraciones de salud en personas del barrio San Benito en Bogotá. Métodos En una muestra de 827 personas, se cuantificó cromo total en orina como biomarcador de exposición y se contrastó con alteraciones de salud atribuibles a exposición a cromo. La exposición se definió, por la "Ocupación actual" relacionada con la labor en curtiembres. Se definieron dos (mas) estratos: "Directamente expuestos" 26 % y "Potencial alta exposición" 73 %. Resultados Un 6,3 % presentó niveles de cromo >10 ug/L (intervalo de confianza: 4,64-7,96 %). No se encontraron diferencias estadísticamente significativas entre los dos estratos. El 34,3 % presentó diagnósticos posiblemente atribuibles a la exposición a cromo. El 23,3 % otorrinolaringológico; 6,5 % dermatológico; 2,9 % oftalmológico; 1,6 % cavidad oral y el 65,7 % no relacionados. Se halló asociación entre niveles >10ug/L y residir en la zona (OR 4,94 IC:1,2- 20,7 %). Los resultados sugieren asociación entre ocupación y alteraciones de salud atribuibles a la exposición a compuestos de cromo. Conclusiones Las personas que participan del proceso productivo del cuero tienen un riesgo significativo de presentar hallazgos clínicos posiblemente atribuibles a la exposición a cromo, OR 4,33 (3,12-6,02). La población general se esta viendo expuesta de manera no diferente a aquella con ocupación relacionada con las curtiembres, lo que puede deberse a que los habitantes del sector están en contacto con cromo o compuestos por vías diferentes a la ocupacional, como contaminación ambiental. Resumen en inglés Objective Determining whether chromium levels in urine samples were higher than limits and contrasting them with alterations in the health of people living and working in the San Benito neighbourhood of Bogotá. Methods The total amount of chromium in urine was measured as a biological marker of exposure in a sample of 827 people. This was contrasted with health alterations attributed to chromium exposition. Exposure was defined by being whether current economic activity (mas) was related to working in a tannery. Two groups were defined: being directly exposed (26 %) and having potentially high exposure (73 %). Results 6.3 % presented >10 ug/L chromium levels (4.64 % to 7.96 % confidence interval). No significant statistical differences were found between both groups. 34.3 % presented a diagnosis of possible attribution to chromium exposure, of whom 23.3 % were due to otorhinolaryngologic issues, 6.5 % to dermatological ones, 2.9 % to ophthalmologic ones and 1.6 % to oral cavity issues. The remaining 65.7 % of cases were not related. >10ug/L levels and living in the particular neighbourhood in question were associated (4.94 odds ratio; 1.18 %-20.69 % CI). The results suggested a connection between economic activity and health alterations due to chromium components. Conclusions The people involved in producing leather have a significant risk of presenting clinical conditions attributed to chromium exposure (4.33 OR; 3.12-6.02 CI). San Benito´s inhabitants are being exposed to chromium as if they were actually working in a tannery as they are in daily contact with chromium or its components through non work-related activities, such as environmental contamination. Concern at such exposure should lead to further in-depth studies.

Scientific Electronic Library Online (Spanish)

3

Niveles de Cromo y Alteraciones de Salud en una Población Expuesta a las Actividades de Curtiembres en Bogotá, Colombia/ Chromium levels and their relationship with alterations in the health of tannery workers living and working in Bogotá, Colombia

Cuberos, Esther; Rodriguez, Alba I; Prieto, Edgar
2009-04-01

Resumen en español Objetivo Determinar si los niveles de cromo en orina están más altos de los permitidos y contrastarlos con alteraciones de salud en personas del barrio San Benito en Bogotá. Métodos En una muestra de 827 personas, se cuantificó cromo total en orina como biomarcador de exposición y se contrastó con alteraciones de salud atribuibles a exposición a cromo. La exposición se definió, por la "Ocupación actual" relacionada con la labor en curtiembres. Se definieron dos (mas) estratos: "Directamente expuestos" 26 % y "Potencial alta exposición" 73 %. Resultados Un 6,3 % presentó niveles de cromo >10 ug/L (intervalo de confianza: 4,64-7,96 %). No se encontraron diferencias estadísticamente significativas entre los dos estratos. El 34,3 % presentó diagnósticos posiblemente atribuibles a la exposición a cromo. El 23,3 % otorrinolaringológico; 6,5 % dermatológico; 2,9 % oftalmológico; 1,6 % cavidad oral y el 65,7 % no relacionados. Se halló asociación entre niveles >10ug/L y residir en la zona (OR 4,94 IC:1,2- 20,7 %). Los resultados sugieren asociación entre ocupación y alteraciones de salud atribuibles a la exposición a compuestos de cromo. Conclusiones Las personas que participan del proceso productivo del cuero tienen un riesgo significativo de presentar hallazgos clínicos posiblemente atribuibles a la exposición a cromo, OR 4,33 (3,12-6,02). La población general se esta viendo expuesta de manera no diferente a aquella con ocupación relacionada con las curtiembres, lo que puede deberse a que los habitantes del sector están en contacto con cromo o compuestos por vías diferentes a la ocupacional, como contaminación ambiental. Resumen en inglés Objective Determining whether chromium levels in urine samples were higher than limits and contrasting them with alterations in the health of people living and working in the San Benito neighbourhood of Bogotá. Methods The total amount of chromium in urine was measured as a biological marker of exposure in a sample of 827 people. This was contrasted with health alterations attributed to chromium exposition. Exposure was defined by being whether current economic activity (mas) was related to working in a tannery. Two groups were defined: being directly exposed (26 %) and having potentially high exposure (73 %). Results 6.3 % presented >10 ug/L chromium levels (4.64 % to 7.96 % confidence interval). No significant statistical differences were found between both groups. 34.3 % presented a diagnosis of possible attribution to chromium exposure, of whom 23.3 % were due to otorhinolaryngologic issues, 6.5 % to dermatological ones, 2.9 % to ophthalmologic ones and 1.6 % to oral cavity issues. The remaining 65.7 % of cases were not related. >10ug/L levels and living in the particular neighbourhood in question were associated (4.94 odds ratio; 1.18 %-20.69 % CI). The results suggested a connection between economic activity and health alterations due to chromium components. Conclusions The people involved in producing leather have a significant risk of presenting clinical conditions attributed to chromium exposure (4.33 OR; 3.12-6.02 CI). San Benito´s inhabitants are being exposed to chromium as if they were actually working in a tannery as they are in daily contact with chromium or its components through non work-related activities, such as environmental contamination. Concern at such exposure should lead to further in-depth studies.

Scientific Electronic Library Online (Spanish)

4

Fractionation of potentially toxic elements in urban soils from five European cities by means of a harmonised sequential extraction procedure

Davidson, C.M.; Urquhart, G.J.; Ajmone-Marsan, F.; Biasioli, M.; Duarte, A.D.; Díaz Barrientos, E.; Grcman, H.; Hossack, L.; Hursthouse, A.S.; Madrid, L.; Rodrígues, S.; Zurpan, M.
2006-02-23

Digital.CSIC (Spain)

5

Estudio preliminar sobre la determinación de elementos traza en cervezas venezolanas por ICP-OES/ Preliminary study on the determination of trace elements in venezuelan beers by ICP-OES

Marcano, Eunice; Gómez, Clara; Benzo, Zully; Laine, Jorge
2010-01-01

Resumen en inglés The levels of several chemical elements were determined simultaneously in ten different beers of the Venezuelan market by ICP-OES. With the exception of chromium, beer does not provide important amounts of nutritional oligoelements. The average chromium content found (33 µg/L) is higher than one reported for USA's beer (10 µg/L) but smaller than another reported for Brazilian beer (66 µg/L). The average percentage of chromium RDA by beer consumption found for Venezuela (mas) (6.3%) is similar to that reported for Belgium (5%). Regarding toxic elements, one of the samples contained an elevated amount of aluminium, probably dissolved from the aluminium can.

Scientific Electronic Library Online (Spanish)