| Autor: |
Luna-Porres, M. Y., Rodríguez-Villa, M. A., Herrera-Peraza, E., Cabral-Lares, M., Renteria-Villalobos, M., Montero-Cabrera, M. E. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2014, Vol. 1607, p67-74, 8p, 3 Charts, 1 Map |
| Abstrakt: |
The Conchos River is one of the most important in northern Mexico and the main surface waterway in the arid state of Chihuahua. The Luis L. Leon dam produces the Luis L. Leon Reservoir, which is the last major reservoir before the Conchos River enters the Rio Grande at the Texas-Chihuahua border. Activity concentrations (AC) of 234,238U and 210Po in fillet and liver of three stocked fish species (Lepomis cyanellus, Cyprinus carpio and Ictalurus furcatus), as well as in water from the Luis L. Leon reservoir were determined 238U and 234U ACs in fillet samples showed values of 0.007-0.014 and 0.01-0.02 Bq kg-1 wet weight (ww), respectively. Liver samples for Lepomis cyanellus, Cyprinus carpio and Ictalurus furcatus species, present 210Po AC of 1.16-3.26 0.70-1.13 and 0.93-1.37 Bq-kg1 ww. The elemental Bioaccumulation Factor (BAF) for fish tissues respect to their concentrations in water was determined. Lepomis cyanellus species showed the highest BAF for total uranium in fillet, with value 1.5. The annual effective dose for uranium in adults by fish consumption in this work ranged from 4.46x10-3 to 3.68x10-2 μSv-year-1. The difference in concentrations of uranium in fillet among the studied species is likely primarily due to their differences in diet and habitat. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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