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

Use of chemometric tools to determine the source of metals in sediments of the rivers of the Turvo/Grande Hydrographical Basin, São Paulo state, Brazil

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Author(s):
Campanha, Mariele B. [1] ; Romera, Joao Paulo [1] ; Coelho, Jessica [1] ; Pereira-Filho, Edenir R. [2] ; Moreira, Altair B. [1] ; Bisinoti, Marcia C. [1]
Total Authors: 6
Affiliation:
[1] Sao Paulo State Univ Julio de Mesquita Filho UNES, Inst Biosci Literature & Exact Sci, Dept Chem & Environm Sci, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 25, n. 4, p. 665-674, APR 2014.
Web of Science Citations: 1
Abstract

In this work, nine metals were determined in superficial samples and sediment cores obtained from five sampling sites in the Preto, Turvo, and Grande Rivers during the wet and dry seasons. The metals were determined by flame atomization atomic absorption spectrometry. Principal component analysis of the data was performed to evaluate the factors responsible for the variations in metal concentrations. Granulometry and organic matter were the determining factors of metals concentrations. In the Preto River (urban area), high Zn concentrations are due to anthropic sources, whereas the high levels of total nitrogen, Al, Cr, Cu, Fe, K, Mn, and Ni in the Turvo river (damming, rural area) are due to agricultural runoff. Although lower concentrations of metals were observed at the remaining sites, violations of the guide values for sediment quality, particularly for Cr and Mn, indicate the need for management strategies for the Turvo/Grande Hydrographic Basin. (AU)

FAPESP's process: 09/12147-0 - Metals biogeochemistry in river sediments from Turvo/Grande Watershed
Grantee:Mariele Barboni Campanha
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 12/23066-4 - The role of aquatic humic substances on availability of toxic metal and a propose of a labile organic matter in aquatic environments
Grantee:Márcia Cristina Bisinoti
Support Opportunities: Regular Research Grants
FAPESP's process: 10/09271-9 - Contamination evaluation and behavior of metals in sediments, fish tissue and surface water samples of rivers of the Turvo/Grande watershed
Grantee:Márcia Cristina Bisinoti
Support Opportunities: Regular Research Grants