NDLI: Binding intensity and metal partitioning in soils affected by mining and smelting activities in Minas Gerais, Brazil.

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Binding intensity and metal partitioning in soils affected by mining and smelting activities in Minas Gerais, Brazil.

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Binding intensity and metal partitioning in soils affected by mining and smelting activities in Minas Gerais, Brazil.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Lopes, G. Penido, E. S. Guilherme, L. R. G. Sparks, D. L. Costa, E. T. S.
Spatial Coverage	Brazil
Description	Country affiliation: Brazil Author Affiliation: Lopes G ( Department of Soil Science, Federal University of Lavras, Lavras, MG, 37200-000, Brazil.)
Abstract	Mining and smelting activities are potential sources of heavy metal contamination, which pose a threat to human health and ecological systems. This study investigated single and sequential extractions of Zn, Pb, and Cd in Brazilian soils affected by mining and smelting activities. Soils from a Zn mining area (soils A, B, C, D, E, and the control soil) and a tailing from a smelting area were collected in Minas Gerais state, Brazil. The samples were subjected to single (using Mehlich I solution) and sequential extractions. The risk assessment code (RAC), the redistribution index (U ts ), and the reduced partition index (I R ) have been applied to the sequential extraction data. Zinc and Cd, in soil samples from the mining area, were found mainly associated with carbonate forms. This same pattern did not occur for Pb. Moreover, the Fe-Mn oxides and residual fractions had important contributions for Zn and Pb in those soils. For the tailing, more than 70 % of Zn and Cd were released in the exchangeable fraction, showing a much higher mobility and availability of these metals at this site, which was also supported by results of RAC and I R . These differences in terms of mobility might be due to different chemical forms of the metals in the two sites, which are attributable to natural occurrence as well as ore processing.
ISSN	09441344
Issue Number	17
Volume Number	22
e-ISSN	16147499
Journal	Environmental Science and Pollution Research
Language	English
Publisher	Springer
Publisher Date	2015-09-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Environmental Monitoring Methods Metals, Heavy Analysis Mining Soil Pollutants Soil Chemistry Brazil Humans Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine

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