4.7 Article

Arsenic geochemistry and mineralogy as a function of particle-size in naturally arsenic-enriched soils

Journal

JOURNAL OF HAZARDOUS MATERIALS
Volume 403, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.jhazmat.2020.123931

Keywords

Naturally arsenic-enriched soils; Geochemical fractionation; Sequential extraction; Speciation of arsenic; Mineralogy of arsenic

Funding

  1. University of Tehran
  2. Ministry of Science, Research and Technology, Iran
  3. CRC-CARE (Australia)

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In naturally arsenic-enriched agricultural soils, the content of arsenic varies in different particle size fractions with a certain order.
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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