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Arsenic geochemistry and mineralogy as a function of particle-size in naturally arsenic-enriched soils
Arzhang Fathi Gerdelidani1, Hasan Towfighi2, Karim Shahbazi3
1Department of Soil Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran; Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Callaghan, New South Wales 2308, Australia.
Abstract:
Naturally arsenic (As) enriched agricultural soils represent a significant global human health risk. In this study, As fractionation and mineralogy were investigated in naturally As-enriched agricultural soils and their corresponding sand, silt and clay fractions. Median As increased generally in the order (mg/kg)∶ silt (280) < bulk (314) < sand (323)
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