C. R. A. Bastos

Companhia Energética de São Paulo

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Co-Authors

H. Otta

D. C. Gomes

Ricardo Hirata

Universidade de São Paulo

M. F. B. Silva

Mara Akie Iritani

Instituto Geológico

Geisiane Alves Rocha

Universidade Federal de Goiás

Ludwin Poppe

Ghent University

M. G. F. Dantas

Cooperative Institutions

Universidade de São Paulo

Fundação de Amparo à Pesquisa do Estado de São Paulo

International Water Association

Instituto de Geociencias

Hospital Universitário da Universidade de São Paulo

Universidade Brasil

Universidade Cidade de São Paulo

Universidad San Pedro

Instituto Butantan

Universidade Federal do Rio Grande do Sul

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Evaluation of Groundwater Potential Pollution Sources in the State of São Paulo, Brazil

Water Science & Technology (1991)

C. R. A. Bastos H. Otta Ludwin Poppe M. F. B. Silva M. G. F. Dantas

The objective of this work is to present the methodology used in the project “Vulnerability Mapping and Groundwater Pollution Risk in the State of São Paulo, Brazil”, implemented by the DAEE, CETESB and Institute of Geology, and intended to be a risk assessment procedure to evaluate the threat of groundwater quality deterioration using existing data. Such method is based on the interaction between the natural aquifer vulnerability and an imposed contaminant load generated by human activities, and aims to identify critical areas to prioritize the adoption of control measures and more intensive quality monitoring. This paper describes the principles used in the assessment of the contaminant load generated by industries, solid waste disposal and mining activities in the State. More than 500 industries were identified as important groundwater potential pollution sources, and a criterion of ranking their capability to generate contaminant loads to the aquifer was|established.

Groundwater Pollution

Vulnerability

10.2166/wst.1991.0355

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Citations (1)

Groundwater Pollution Risk and Vulnerability Map of the State of São Paulo, Brazil

Water Science & Technology (1991)

Ricardo Hirata C. R. A. Bastos Geisiane Alves Rocha D. C. Gomes Mara Akie Iritani

Aiming to provide a global diagnosis of the actual threat of pollution to the most important aquifers of the State of São Paulo, Brasil, due to its intensive industrialization and agriculture, three government institutions -the Instituto Geologico (Geological Institute), the CETESB (Environmental Sanitary Technology Company) and the DAEE (Water and Eleotrical Energy Department) - carried out a regional survey to define the aquifers' vulnerability to pollution and for recording and ranking the potential contaminant sources. This paper describes the results of this survey, excluding the metropolitan area of the city of São Paulo. More than 500 industries were recorded and ranked according to their low, moderate or high potential contaminant load for impacting groundwater. Thirty - one aquifer units were defined and a 1:500.000 scale vulnerability map was produced. Critical areas were defined and recommended as being priority sites for the adoption of control measures.

Vulnerability

Industrialisation

Groundwater Pollution

10.2166/wst.1991.0348

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Citations (9)