Open AccessAvaliação de risco à saúde humana por contaminação natural de arsênio nas águas subterrâneas e nos solos da área urbana de Ouro Preto (MG)
Author(s) -
José Augusto Costa Gonçalves,
Jorge Carvalho de Lena
Publication year - 2013
Publication title -
geologia usp. série científica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 21
eISSN - 2316-9095
pISSN - 1519-874X
DOI - 10.5327/z1519-874x2013000200008
Subject(s) - soil water , environmental science , arsenic , environmental chemistry , geography , forestry , chemistry , soil science , organic chemistry
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