The effects of organics on the transformation and release of arsenic

W. M. Al Lawati, B. E. Van Dongen, D. Polya, Jiin-Shuh Jean, Thomas R. Kulp, Michael Berg

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Over a hundred million people across the globe are chronically exposed to high levels of Arsenic (As) in shallow reducing groundwaters utilized for drinking, cooking and irrigation. The importance of the role of degradable organic matter (OM) is widely recognized in As mobilization by microbially mediated reductive dissolution of iron (Fe-III) hydrated oxides/hydroxides and/or reduction of As(V). However, the role that organics play in As release in high-As aquifers remains ambiguous in many regions. Initial results of the organic analysis of the hydrocarbon fractions of sediments obtained from SW Taiwa (Yichu) and the Red River Delta, Vietnam (Van Phuc Village) revealed an influx of mature OM source in these sediments. The mechanism and the controlling factors on the release of As from these sediments are investigated.

Original languageEnglish
Title of host publicationUnderstanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress
Subtitle of host publicationArsenic in the Environment
Pages112-114
Number of pages3
Publication statusPublished - 2012 Aug 16
Event4th International Congress on Arsenic in the Environment, As 2012 - Cairns, QLD, Australia
Duration: 2012 Jul 222012 Jul 27

Publication series

NameUnderstanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment

Other

Other4th International Congress on Arsenic in the Environment, As 2012
CountryAustralia
CityCairns, QLD
Period12-07-2212-07-27

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution

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