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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The role of acid volatile sulfide in the control of potential metal bioavailability in contaminated sediments from a tropical estuary, southeast Brazil

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Author(s):
Érico Casare Nizoli [1] ; Wanilson Luiz-Silva [2]
Total Authors: 2
Affiliation:
[1] Universidade Estadual de Campinas. Instituto de Geociências - Brasil
[2] Universidade Estadual de Campinas. Instituto de Geociências - Brasil
Total Affiliations: 2
Document type: Journal article
Source: Química Nova; v. 32, n. 2, p. 365-372, 2009-00-00.
Abstract

Measurements of acid volatile sulfide (AVS) and simultaneously extracted metals (SEM) were combined in order to verify the ecological hazard of contaminated sediments from the Santos-Cubatão Estuarine System (SE Brazil), which is located in one of the most industrialized areas in the Latin America. Intertidal sediments from the Morrão River estuary were collected seasonally in short cores. The redox conditions, organic matter contents and grain-size were the main controlling factors on SEM distribution. However, clear relationships among these variables and AVS were not observed. The molar SEM/AVS ratios were frequently > 1 especially in the summer, suggesting major metal bioavailability hazard in this humid hot season. (AU)