Biomonitoring of mercury in coastal regions of Sao Paulo by using the transplanted mussel Perna perna
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2006
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INTERNATIONAL CONFERENCE ON MERCURY AS A GLOBAL POLLUTANT, 8th
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Resumo
In Brazil, due to the extension of the coast and to the inumerous pollution problems
encountered in several regions, it is necessary to obtain a great volume of data with
relation to the monitoring of many environmental compartments. such as water, soils,
sediments and biomonitors. The aim of this project is to give a contribution to the
biomonitoring of toxic elements like Hg, Pb and Cd in some regions of the coast of the
State of S@o Paulo, by using the bivalve Perna perna, which is commonly found in the
whole Brazilian coast and is consumed by the population, in an amount estimated in
several tons per month, in S3o Paulo. Due to its sedentary habits and its ability to
concentrate many pollutants, the mussel Perna perna is been used in studies of evaluation
of the quality of coastal waters. The project is being conducted in collaboration with the
Oceanographic Institute of the University of S3o Paulo. For the utilization in the
experiments, healthy animals were obtained, collected in regions far away from sources
of pollution. The organisms to be utilized in this project were acquired in a cultivation
site situated in the Cocanha Beach in Ubatuba, a site not close to pollution sources, which
will constitute the control for the present study. The organisms were transplanted to
several points along the coast, from Sio Sebastido to Santos. The sites chosen in Santos
are strategic in the sense that they monitor the Bay of Santos, with relation to industrial
emmissions and to the emmissary of domestic effluents. Every three months, the
organisms were removed from the transplant points, cleaned and freeze-dried. The
analysis of mercury were be carried out at the Neutron Activation Analysis Laboratory, at
IPEN/CNEN-SP, using CVAAS after dissolution with HNO3 - H202 mixture. Results
obtained for mercury up to present did not show concentrations in the mussels above the
limits of 1 mg kg-1 in shellfish set by UNEP (1998) and 0.5 mg kg-1 set by Brazilian
regulations.
Como referenciar
CATHARINO, MARILIA G.M.; VASCONCELLOS, MARINA B.A.; MOREIRA, EDSON G.; SOUSA, E.C.P.M.; FAVARO, DEBORA I.T. Biomonitoring of mercury in coastal regions of Sao Paulo by using the transplanted mussel Perna perna. In: INTERNATIONAL CONFERENCE ON MERCURY AS A GLOBAL POLLUTANT, 8th, August 6-8, 2006, Madison, USA. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/19946. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.