Availability and toxicity of metals (Pb, CD, Cr, Zn, Cu) in bottom sediments: Ribe...
Sequential fractionation of Pb and Zn in alluvial sediments of the Ribeira de Igua...
Full text | |
Author(s): |
Valéria Guimarães Silvestre Rodrigues
[1]
;
Aline Fujikawa
[2]
;
Denis Moledo de Souza Abessa
[3]
;
Marcos Antonio Hortellani
[4]
;
Jorge Eduardo Souza Sarkis
[5]
;
Joel Barbujiani Sígolo
[6]
Total Authors: 6
|
Affiliation: | [1] Universidade de São Paulo. Escola de Engenharia de São Carlos. Departamento de Geotecnia - Brasil
[2] Universidade Estadual Paulista Júlio de Mesquita Filho - Brasil
[3] Universidade Estadual Paulista Júlio de Mesquita Filho - Brasil
[4] Instituto de Pesquisas Energéticas e Nucleares - Brasil
[5] Instituto de Pesquisas Energéticas e Nucleares - Brasil
[6] Universidade de São Paulo. Instituto de Geociências. Departamento de Geologia Sedimentar e Ambiental - Brasil
Total Affiliations: 6
|
Document type: | Journal article |
Source: | Química Nova; v. 35, n. 3, p. 454-459, 2012-00-00. |
Abstract | |
This study investigated the contamination of the Ribeira de Iguape River - RIR by Cd, Zn, Cr and Pb, using the bivalve Anodontites tenebricosus as a biomonitor. Metal concentrations in tissue samples were measured by HR-ICPMS. Bivalve tissues exhibited mean levels of 1.00 µg/g Cd; 152.89 µg/g Zn; 14.79 µg/g Cr and 4.40 µg/g Pb. Lead concentrations were comparable to those reported for moderately contaminated sites. The results showed that Pb is bioavailable to the bivalves, exhibiting high concentrations and exceeding both natural and reference values for human consumption. The freshwater bivalve Anodontites tenebricosus is a suitable biomonitor of contamination by metals. (AU) |