Determination of Pb, Cd, Hg, Cu and Zn levels in molluscs (Crassostrea brasiliana, Perna perna and Mytella falcata)
Bivalves as filter-feeders and bioaccumulators of chemical and biological residues can offer risk to public health when consumed by the population. This study aims at determining Pb, Cd, Hg,Cu and Zn levels in bivalves C. brasiliana, P. perna and Mytella falcata collected in several natural sandbank...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2002 |
| País: | Brasil |
| Institución: | Instituto Adolfo Lutz |
| Repositorio: | Revista do Instituto Adolfo Lutz (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.periodicos.saude.sp.gov.br:article/35011 |
| Acceso en línea: | https://periodicos.saude.sp.gov.br/RIAL/article/view/35011 |
| Access Level: | acceso abierto |
| Palabra clave: | Bivalve Hg, Pb, Cd, Cu, Zn cold vapor atomic absorption spectrometry CV/AAS ICP OES. espectrometria de absorção atômica por vapor frio CV/ AAS ICP OES |
| Sumario: | Bivalves as filter-feeders and bioaccumulators of chemical and biological residues can offer risk to public health when consumed by the population. This study aims at determining Pb, Cd, Hg,Cu and Zn levels in bivalves C. brasiliana, P. perna and Mytella falcata collected in several natural sandbanks in the coastal Baixada Santista, São Paulo. Seventy samples from twelve natural sandbankswere collected and analyzed from September 1996 to February 1997. Mercury concentration in soft tissues of bivalves was determined by continuos flow injection – flameless atomic absorption spectrometry. Pb, Cd, Zn and Cu were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES).The results showed that Pb, Cd, Hg and Cu levels in samples were according to Brazilian legislation. The concentration of Zn for all samples of oyster C. brasiliana was higher than those indicated by legal limits for foods in Brazil, that is 50 mg/kg; for other samples the Zn levels were below the levels established for Brazilian legislation. |
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