Distribution profile and availability of Cr, Ni, Cu, Cd and Pb in different sediments from anhumas surface water collection reservoir, Araraquara-São Paulo State, Brazil
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Data
2002-11-01
Autores
Santos, A.
Rocha, J. C.
Rezende, MOO
Rosa, André Henrique [UNESP]
Sargentini, E.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Inst Lebensmitteltechnologie Analytische Chemie
Resumo
In this work the influence of the anhtropogenic activities in the uptake of metals at a reservoir for public water supply in Araraquara City, São Paulo State, Brazil was studied. For this, the distribution of Cr, Ni, Cu, Cd and Pb in sediments collected from Anhumas reservoir, at seven sampling points and at three depths for each point was investigated. The pseudo-total and available metals contained in the different sediment samples were assessed using an ICP-AES technique. Among the five metals studied, cadmium possesses the largest relative potential availability, with percentages of 20 to 98% for the three different sediment types. In addition, the following decreasing availability order was characterized: Cd > Cu > Pb > Ni > Cr.
Descrição
Palavras-chave
sediment, heavy metals, atomic emission spectrometry
Como citar
Fresenius Environmental Bulletin. Freising-weihenstephan: Inst Lebensmitteltechnologie Analytische Chemie, v. 11, n. 11, p. 979-984, 2002.