Journal
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
Volume 62, Issue 3, Pages 359-373Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/03650340.2015.1062088
Keywords
trace elements; health risk assessment; cobalt
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Potentially toxic element contents in agricultural soils were assessed by comparison with levels recorded in the literature and evaluated using Index of Geoaccumulation (I-geo). The model recommended by United States Environment Protection Agency is applied for the health risk assessment from different exposure pathways. The median values of cobalt (Co), chromium (Cr) and nickel (Ni) exceeds about 2, 3 and 14 times, respectively, the corresponding values given by the Geochemical Atlas of Europe project, however, they present low potential ecological risk. The median values of manganese (Mn) and vanadium (V) are slightly lower than the corresponding values given by the Geochemical Atlas of Europe project. Risk assessment results present negligible health risk to children and adults due to manganese (Mn), nickel (Ni) and vanadium (V) exposure through ingestion of contaminated soil. Only the cobalt (Co) hazard quotient (HQ) and hazard index (HI) for children around two sampling sites exceed the acceptable safe risk level.
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