Organochlorine pesticides in Piracicaba river basin (São Paulo/Brazil): a survey of sediment, bivalve and fish

The main objective of this paper was to evaluate the level of occurrence of the organochlorine compounds in samples of sediments, bivalves and two fish species collected in the Piracicaba River basin (São Paulo, Brazil). The isomers alpha and gamma of HCH and Heptachlor were most frequently detected...

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Bibliographic Details
Published in:Química Nova 2008, Vol.31 (2), p.214-219
Main Authors: Silva, Daniela Mariano Lopes da, Camargo, Plínio Barbosa de, Martinelli, Luiz Antonio, Lanças, Fernando Mauro, Pinto, Jair S. S., Avelar, Wagner E. Paiva
Format: Article
Language:English
Subjects:
biological monitor
CHEMISTRY, MULTIDISCIPLINARY
organochlorines
Piracicaba River basin
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Summary:The main objective of this paper was to evaluate the level of occurrence of the organochlorine compounds in samples of sediments, bivalves and two fish species collected in the Piracicaba River basin (São Paulo, Brazil). The isomers alpha and gamma of HCH and Heptachlor were most frequently detected in samples of sediments and specimens of bivalve and fish. Therefore, although the levels of these compounds found were not critically high, they are still found in the environment. This fact suggests that they are still being used, despite the fact that the use of these compounds was outlawed more than twenty years ago.
ISSN:0100-4042
1678-7064
1678-7064
DOI:10.1590/S0100-40422008000200005