Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/4108
metadata.dc.type: Artigo de Periódico
Issue Date: 2012
metadata.dc.creator: SANTOS, Suziane Nascimento
LAFON, Jean Michel
CORRÊA, José Augusto Martins
BABINSKI, Marly
DIAS, Fabiana Ferrari
TADDEI, Maria Helena Tirolo
Title: Distribuição e assinatura isotópica de Pb em sedimentos de fundo da Foz do Rio Guamá e da Baía do Guajará (Belém - Pará)
Other Titles: Lead distribution and isotope signature in bottom sediments of Guama River and Guajara Bay (Belem - Para)
Citation: SANTOS, Suziane Nascimento, et al. Distribuição e assinatura isotópica de Pb em sedimentos de fundo da Foz do Rio Guamá e da Baía do Guajará (Belém - Pará). Química Nova, São Paulo, v. 35, n. 2, p. 249-256, 2012. Disponível em: <http://www.scielo.br/pdf/qn/v35n2/04.pdf>. Acesso em: 05 ago. 2013. <http://dx.doi.org/10.1590/S0100-40422012000200004>.
Abstract: Lead analyses in bottom sediments from the hydrographic system of Belem (Para) indicated low contents of this metal for the sediments from the Guama river, with no significant anthropogenic contribution. A concentration of 18.1 ± 1.5 mg kg-1 and 206Pb/207Pb isotopic signature of 1.196 ± 0.002 are assigned for Pb from natural sources. On the other hand, the significant increase of Pb contents in the sediments from the Guajará bay, together with the decrease of 206Pb/207 ratios (1.172 < 206Pb/207 < 1.188) point to an anthropogenic lead contribution, originated by the industrial and urban activities of the city of Belem.
Keywords: Sedimentos marinhos
Pb isótopos
Peixe - Baía do Guajará (PA)
Peixe - Rio Guamá (PA)
ISSN: 1678-7064
0100-4042
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - IG

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