Combined SEM/AVS and attenuation of concentration models for the assessment of biovailability and modified of metals in sediments of Septiba Bay (SE Brazil)
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Marine Pollution Bulletin
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This study proposes a new methodology to study contamination, bioavailability and mobility of metals
(Cd, Cu, Ni, Pb, and Zn) using chemical and geostatistics approaches in marine sediments of Sepetiba
Bay (SE Brazil). The chemical model of SEM (simultaneously extracted metals)/AVS (acid volatile sulfides)
ratio uses a technique of cold acid extraction of metals to evaluate their bioavailability, and the geostatistical model of attenuation of concentrations estimates the mobility of metals. By coupling the two it
was observed that Sepetiba Port, the urban area of Sepetiba and the riverine discharges may constitute
potential sources of metals to Sepetiba Bay. The metals are concentrated in the NE area of the bay, where
they tend to have their lowest mobility, as shown by the attenuation model, and are not bioavailable, as
they tend to associate with sulfide and organic matter originated in the mangrove forests of nearby Guaratiba area.
Como referenciar
RIBEIRO, ANDREZA P.; FIGUEIREDO, ANA M.G.; SANTOS, JOSE O. dos; DANTAS, ELIZABETH; COTRIM, MARYCEL E.B.; FIGUEIRA, RUBENS C.L.; SILVA FILHO, EMMANOEL V.; WASSERMAN, JULIO C. Combined SEM/AVS and attenuation of concentration models for the assessment of biovailability and modified of metals in sediments of Septiba Bay (SE Brazil). Marine Pollution Bulletin, v. 68, n. 12, p. 55-63, 2013. DOI: 10.1016/j.marpolbul.2012.12.023. Disponível em: http://repositorio.ipen.br/handle/123456789/4087. 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.