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HYDROGEOCHEMICAL STUDY OF FLUORIDE IN AN AQUIFER IN BARRA FUNDA, SÃO PAULO, SP

Grant number: 08/09170-8
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): March 01, 2009
Effective date (End): December 31, 2009
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geology
Principal researcher:Reginaldo Antonio Bertolo
Grantee:Diego Felipe Pacheco
Home Institution: Instituto de Geociências (IGC). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

Concentrations of fluoride above the potability limit have been detected in groundwater from deep supply wells located in the Barra Funda region of the municipality of São Paulo. The origin of this anomaly can be numerous and may be attributed to natural or anthropogenic sources. A hydrogeochemical study of the aquifer will be conducted through the sampling and analyses of rock and water samples. The water samples will be collected from selected deep supply wells registered at DAEE data bank and will be analyzed for cations, anions, heavy metals and silica. The final goal of this project will be the characterization of the origin and the extension of the anomaly. Geochemical models will be also be used to improve the geochemical conceptual model.

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