1986
DOI: 10.1016/0048-9697(86)90076-8
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Geochemical partitioning of heavy metals in sediments of three estuaries along the coast of Rio de Janeiro (Brazil)

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Cited by 43 publications
(19 citation statements)
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References 10 publications
(9 reference statements)
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“…polysulfides) or oxidized species (e.g. amorphous hydroxides of Fe and Mn), facilitating the remobilization of metals deposited in sediments, resulting in high heavy metal availability (Salomons & Forstner, 1984;Souza et al, 1986;Lacerda & Abrao, 1987;Patchineelam, 1987). This behaviour is typical of coastal lagoons with permanent water exchange with the sea (Lacerda, 1990;Batley, 1987;El Ghobary & Latouche, 1982).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…polysulfides) or oxidized species (e.g. amorphous hydroxides of Fe and Mn), facilitating the remobilization of metals deposited in sediments, resulting in high heavy metal availability (Salomons & Forstner, 1984;Souza et al, 1986;Lacerda & Abrao, 1987;Patchineelam, 1987). This behaviour is typical of coastal lagoons with permanent water exchange with the sea (Lacerda, 1990;Batley, 1987;El Ghobary & Latouche, 1982).…”
Section: Resultsmentioning
confidence: 99%
“…Among them the physical and chemical characteristics of pore and overlying waters are important. For example, varying pH and Eh values can mobilize heavy metals from sediments to the water column, either by the dissolution of unstable metal compounds, or by precipitating heavy metals by favouring the adsorption onto suspended particles surfaces or the formation of insoluble metal sulfides (Forstner & Salomons, 1980;Calmano & Forstner, 1983;Salomons & Forstner, 1984;Souza et al, 1986;Salomons et al, 1988).…”
Section: Introductionmentioning
confidence: 99%
“…19 The greater eutrophication in western estuaries is supported by field observations, with the darker, sulfidic waters of São João de Merití River estuary contrasting even with those from Iguaçu River estuary, although both rivers are eutrophic waterways. 20,21 Mercury contamination in Guanabara Bay sediments is characterized by a large input from a chlor-alkali plant at the São João de Merití River drainage basin, which began in the 1950's with the use of Hg amalgam and suffered a drastic decrease in the 1970's due to a change to the Hg free membrane production process. 22 Machado et al 23 reported …”
Section: Study Area and Sediment Samplingmentioning
confidence: 99%
“…Silva et al (2006) e Moz eto et al (2007) reportaram elevados teores de Pb adsorvidos em óxidos de manganês, afirmando que a retenção de metais pelos óxidos de manganês contribui para a magnificação de suas concentrações nos solos e sedimentos. Souza et al (1986), analisando a extração sequencial dos sedimentos da Baía de Mangaratiba, Sepetiba e Guanabara, Rio de Janeiro, encontrou Pb, independentemente do sistema de rio ou posição ao longo do gradiente de salinidade apenas na fração redutível.…”
Section: Rio Caceribuunclassified
“…Apesar do elemento Ni normalmente se encontrar na fração residual, Souza et al (1986) afirmam que, em geral, todos os metais, com a exceção do Pb, apresentam concentrações maiores com o aumento da salinidade, mas a presença de fontes antropogênicas ao longo dos cursos fluviais impede uma discussão mais aprofundada deste aspecto. Outro fator influenciador na concentração de carbonatos é que nessas regiões estuarinas, como explanado por Jurner e Brian (1965), Hinrich e Clark (1985), Chen et al (2000), parte do carbonato presente nos sedimentos será dissolvido durante a lixiviação com água dos rios.…”
Section: Rio Guaxindibaunclassified