2009
DOI: 10.14210/bjast.v13n2.p1-8
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Comportamento geoquímico de metais em sedimentos de manguezal da Baía de Camamu-Bahia

Abstract: This inquiry encloses the sediments and mangroves of the Camamu Bay, Bahia, Brazil. 13 stations of sampling had been selected in which sediments, water and leaves were collected. Of these stations, 5 are located in mining zones and 8, in the estuary of the rivers that flow down the bay. The samples had been separate by grain size, mineralogical characteristics, metals (Pb, Zn, Cr, Cu, Cd, Ba, Mn, Fe and Al), organic substances and nutrients. The results of the metals have evidenced differentiated geochemical b… Show more

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Cited by 11 publications
(7 citation statements)
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“…Oliveira et al (2009) highlight the precipitation of Cu with carbonates as one way of maintaining the metal unavailable for reactions. The content of Zn bound to carbonates increased with the cultivation period until 105 days ( Figure 2D), indicating that part of the element, which was found in other more labile chemical forms, such as watersoluble and exchangeable, changed to more stable ones, such as the carbonate form.…”
Section: Resultsmentioning
confidence: 99%
“…Oliveira et al (2009) highlight the precipitation of Cu with carbonates as one way of maintaining the metal unavailable for reactions. The content of Zn bound to carbonates increased with the cultivation period until 105 days ( Figure 2D), indicating that part of the element, which was found in other more labile chemical forms, such as watersoluble and exchangeable, changed to more stable ones, such as the carbonate form.…”
Section: Resultsmentioning
confidence: 99%
“…A avaliação do comportamento dos metais-traço nas folhas foi complementada pelo cálculo do Fator de Concentração (FC), obtido pela razão entre a concentração do metal na folha dividido pela concentração do metal-traço presente no substrato. Na área de estudo, o cálculo do FC contou com os teores de metais-traço do folhelho padrão, de acordo com Turekian e Wdepohl (1961), ou tomou como referência os teores de metais dos sedimentos da zona estuarina da Baía de Camamu, conforme Oliveira et al (2009).…”
Section: Fator De Concentraçãounclassified
“…A baía de Camamu, está localizada no sul da Bahia a cerca de 330 Km de Salvador, é a terceira maior baía navegável do Brasil sendo composta por muitas ilhas que possuem vastas áreas de manguezal, restingas e mata (OLIVEIRA, 1998;OLIVEIRA, 2000). Áreas de manguezal possuem grande importância ecossistêmica e também econômica para toda região sul da Bahia, sendo responsáveis pelo abastecimento de pescado para comercialização e consumo da população que habita as margens dessa região (OLIVEIRA et.al.).…”
Section: Introductionunclassified