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

关键词: Ouro Preto;    Arsenic;    Risk assessment;    Contaminated soil;    Groundwater.;   

DOI  :  10.5327/Z1519-874X2013000200008

来源: DOAJ

【 摘 要 】

This study was performed so as to make an assessment of human exposure to natural contamination by arsenic (As) ingroundwaters 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 childrenand 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 ingroundwaters varying from 10 to 77 μg.L-1 and, in the soils, from 332.75 to 656 mg.kg-1.

【 授权许可】

Unknown