Avaliação da contaminação por elementos metálicos dos sedimentos do Estuário Santos - São Vicente
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Data
2008-01-01
Autores
Hortellani, Marcos Antonio
Sarkis, Jorge E. S.
Abessa, Denis Moledo de Souza [UNESP]
Sousa, Eduinetty C. P. M.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
Three approaches were applied to evaluate metal contamination in 41 sediment samples from the Santos - São Vicente Estuarine System: normalization to Al, statistical analysis and sediment quality guidelines (SQGs). The results showed increases in the concentrations of Zn, Ni, Pb, Cd, Cr and Hg, which seemed to be associated with human activities. The levels of Al, Fe and Co probably were associated with crustal material or natural weathering processes. About 45% of the samples presented concentrations exceeding TEL-ERL, levels occasionally associated with adverse biological effects. Four of these samples presented concentrations above PEL-ERM, levels frequently associated with adverse biological effects.
Descrição
Palavras-chave
sediments, metal contamination, normalization
Como citar
Química Nova. Sociedade Brasileira de Química, v. 31, n. 1, p. 10-19, 2008.