Author(s)

D.M. Bonotto & E.G. Oliveira

Abstract

Hydrochemical investigations on waste disposal areas of industrial activities at Rio Claro, Sao Paulo, Brazil D. M. Bonotto* & E. G. Oliveira^ *Departamento de Petrologia e Metalogenia, Institute de Geociencias e Ciencias Exatas-UNESP, Rio Claro, Brasil ''Departamento de Geologia Aplicada, Instituto de Geociencias e Ciencias Exatas-UNESP, Rio Claro, Brasil. Abstract Groundwaters and surface waters around two waste disposal areas at Rio Claro municipality, nearly in the center of Sao Paulo State, Brazil, were chemically analysed with the purpose of evaluating the influence on the water quality of the chemicals released without any care with the environment and using a prevention system for the containment of environmentally polluting substances. 1 Introduction Modifications in the water quality due to anthropogenic inputs are often verified in the present days due to the presence of municipal and industrial landfills, industrial lagoons, septic sewage systems, livestock feedlots,

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