Cadmium, Copper, Lead and Zinc Contents of the Mangrove Oyster, Crassostrea corteziensis, of Seven Coastal Lagoons of NW Mexico |
| |
| Authors: | M G Frías-Espericueta I Osuna-López I Ba?uelos-Vargas G López-López M D Muy-Rangel G Izaguirre-Fierro W Rubio-Carrasco P C Meza-Guerrero and D Voltolina |
| |
| Institution: | (1) Laboratorio de Estudios Ambientales, Facultad de Ciencias del Mar, Universidad Aut?noma de Sinaloa, P.O. Box 1132, Mazatl?n, Sinaloa, 82000, Mexico;(2) Centro de Investigaci?n en Alimentaci?n y Desarrollo, Unidad Culiac?n, Culiac?n, Sinaloa, Mexico;(3) Centro de Investigaciones Biol?gicas del Noroeste, Laboratorio UAS-CIBNOR, P.O. Box 1132, Mazatl?n, Sinaloa, Mexico; |
| |
| Abstract: | The ranges of concentrations of Cd, Cu, Pb and Zn of the soft tissues of C. corteziensis collected in seven coastal lagoons of NW Mexico were 1.55–7.45, 17.50–166.36, 4.13–9.49 and 245.34–2,304.12 μg/g (dry weight),
respectively. Their distributions were not consistent and there were no seasonal trends, indicating different point sources
of the metals in each lagoon. The mean Cd and Pb concentrations were 5.34 and 6.30 μg/g (dry weight), which are higher than
the values indicative of polluted areas. Our data indicate that only the levels of Cd are a possible health risk in six of
these lagoons, and only in the case of regular local consumers. In one, Cu and Zn reach levels of concern. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
