Influence of microbes on the mobilization, toxicity and biomethylation of arsenic in soil

R. Turpeinen, M. Pantsar-Kallio, M. Häggblom, T. Kairesalo

Research output: Contribution to journalArticle

117 Scopus citations

Abstract

To understand the effects of microbial activity on the mobilization and speciation of arsenic in soil, the cycling of arsenic was studied in microcosm experiments under laboratory conditions. Particular attention was paid to the biomethylation of arsenic and to the toxicity of inorganic and organic arsenic species for microbes. Microbes enhanced mobilization of arsenic from soil by 19-24% compared to formaldehyde inhibited controls. Formation of dissolved methylated arsenic species by microbes was low (<0.1%) during the 5-day incubation. Even though methylation may function as a detoxification method, it was of minor importance in the soil tested. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)173-180
Number of pages8
JournalScience of the Total Environment
Volume236
Issue number1-3
DOIs
StatePublished - Sep 15 1999

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

Keywords

  • Arsenic
  • Microbes
  • Mobility
  • Speciation

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