Methodology to assess groundwater pollution conditions (current and pre-disposition) in the SA o pound Carlos and RibeirA o pound Preto regions, Brazil

Autor(es)

Zuquette, Lazaro Valentin ^[1] ; Palma, Janaina Barrios ^[1] ; Pejon, Osni Jose ^[1]

Afiliação do(s) autor(es)

^[1] Escola Engn Sao Carlos, Dept Geotecnia, BR-13566590 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Bulletin of Engineering Geology and the Environment; v. 68, n. 1, p. 117-136, FEB 2009.
• Citações Web of Science: 7

Resumo

The goal of the study was to establish a methodology for territorial zoning based on predicted groundwater pollution. The 31 attributes identified were divided into six different environmental components associated with the transport of contaminants to the geological medium. Two indices were obtained: the pre-disposition index (PI), and the potential pollution intensity index (PPII). The paper reports an assessment of the potential pollution of the groundwater in the sandstones of the Botucatu and PirambA(3)ia Formations, Sao Paulo, Brazil. The region was divided into 447 units according to the type of land use, size of watershed and degree of lithological homogeneity. The units were assessed for potential pollution in the pre-disposition condition (based on geological/geotechnical data) and the complete condition (geological/geotechnical and situation specific data) using the analytical hierarchical process method. A high degree of pollution potential was established for 35 of the units in the complete condition and 157 units in the pre-disposition condition. The study has highlighted areas where attention to pollution control should be focused. (AU)

• Processo FAPESP: 00/03027-7 - Elaboração de cartas de eventos perigosos e riscos associados aos processos erosivos Escala 1:10.000, região de São Pedro, SP: desenvolvimento metodológico
• Beneficiário: Lázaro Valentin Zuquette
• Modalidade de apoio: Auxílio à Pesquisa - Regular