Evaluation of risk to human health by natural arsenic contamination in groundwater and soils from the urban area of Ouro Preto (MG)

Authors

  • José Augusto Costa Gonçalves Universidade Federal do Espírito Santo; Centro de Ciências Agrárias; Departamento de Geologia
  • Jorge Carvalho de Lena Universidade Federal de Ouro Preto; Departamento de Geologia

DOI:

https://doi.org/10.5327/Z1519-874X2013000200008

Keywords:

Ouro Preto, Arsenic, Risk assessment, Contaminated soil, Groundwater

Abstract

This study was performed so as to make an assessment of human exposure to natural contamination by arsenic (As) in groundwaters and soils in the urban area of Ouro Preto, MG), Brazil, specifically in the Piedade, Taquaral, Padre Faria, Alto da Cruz, Antônio Dias, and Barra neighborhoods. In this study, the following items were estimated for the children and adult residents in these locations: (i) the values of daily ingested doses (DID) of As; (ii) the values for risk quotients (QRs) and (iii) the increase of the probability of developing cancer throughout life (RC), with mean content of As found in groundwaters varying from 10 to 77 µg.L-1 and, in the soils, from 332.75 to 656 mg.kg-1.

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Published

2013-06-01

Issue

Vol. 13 No. 2 (2013)

Section

Articles

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How to Cite

Gonçalves, J. A. C., & Lena, J. C. de. (2013). Evaluation of risk to human health by natural arsenic contamination in groundwater and soils from the urban area of Ouro Preto (MG) . Geologia USP. Série Científica, 13(2), 145-158. https://doi.org/10.5327/Z1519-874X2013000200008