TY  - JOUR
T1  - 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
AU - , Jose A. Toca-Ramirez AU - Pereda-Solis, Martin E. AU - , Jose H. Martinez-Guerrero 
JO  - Journal of Animal and Veterinary Advances
VL  - 11
IS  - 6
SP  - 826
EP  - 830
PY  - 2012
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2012.826.830
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2012.826.830
KW  - Metal
KW  -metalloid
KW  -aquatic birds
KW  -biomonitoring
KW  -Durango
KW  -Mexico
AB  - 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&gt;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&lt;0.05) than in the other two bird groups. An individual of the species shoveler (<I>Anas clypeata</I>) has a maximum Cd concentration of 31.98 ppm (dry weight) and the highest value of Zn was 256 ppm (dw) that belonged to an individual of snow goose (<I>Chen caerulescens</I>). Values of metals and metalloids obtained in this study do not represent a commitment on health of birds.
ER  -