Abstract
This study assessed the exposure and effects of trace elements in sentinel organisms, using the bivalve Crassostrea brasiliana in two estuarine areas in São Paulo State, Brazil: Santos Estuary and Cananéia Estuary, site of oyster farms, which was used as reference site. Oysters were evaluated for bioaccumulation of As, Co, Cr, Fe, Se and Zn by INAA and Cd, Pb and Hg by AAS. Effect biomarker was assessed by evaluation of lysosomal membrane stability. In the study of bioaccumulation of trace elements it was verified that Santos Channel presented the largest concentrations of elements studied in most cases. From the study of the cellular biomarker, it was verified that Santos Channel and winter showed higher stress to organisms in the present study.
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Acknowledgments
The authors would like to acknowledge the financial support from CNPq from Brazil and IAEA from Vienna. To the Oceanographic Institute (IO) of the São Paulo University (USP) for the support in the collection of the samples.
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Catharino, M.G.M., Vasconcellos, M.B.A., Kirschbaum, A.A. et al. Passive biomonitoring study and effect biomarker in oysters Crassostrea brasiliana (Lamark, 1819: Mollusca, Bivalvia) in Santos and Cananéia Estuaries in São Paulo State, Brazil. J Radioanal Nucl Chem 303, 2297–2302 (2015). https://doi.org/10.1007/s10967-014-3720-y
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DOI: https://doi.org/10.1007/s10967-014-3720-y