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Estimation of Hepatic Levels of Heavy Metals and Metalloids in Aquatic Birds from a Wetland Irrigated with Residual Water in the City of Durango, Mexico

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Author(s): Martin E. Pereda-Solis | Jose H. Martinez-Guerrero | Jose A. Toca-Ramirez

Journal: Journal of Animal and Veterinary Advances
ISSN 1680-5593

Volume: 11;
Issue: 6;
Start page: 826;
Date: 2012;
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Keywords: Metal | metalloid | aquatic birds | biomonitoring | Durango | Mexico

ABSTRACT
Concentrations of zinc, lead, cadmium and arsenic were determined in hepatic tissue of three groups of aquatic birds (ducks, geese and shorebirds) from a wetland irrigated with water from the wastewater treatment plant of the city of Durango, Mexico. Researchers collected liver portions from 50 birds obtained by hunters during the 2010-2011 hunting season. Metals and metalloid concentrations were determined by atomic absorption spectrophotometry. The four chemicals were detected in 100% of the samples. The results of a Kruskal-Wallis test were not significant (p>0.05) among mean concentrations of Zn, Cd and As for the three groups of birds but the average concentration of Pb in geese was higher (p
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