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Microbial transformations of arsenic in the environment; from soda lakes to aquifers

Jonathan R. Lloyd and Ronald S. Oremland
Microbial transformations of arsenic in the environment; from soda lakes to aquifers (in Arsenic, David J. Vaughan (editor))
Elements (April 2006) 2 (2): 85-90

Abstract

Arsenic is a highly toxic element that supports a surprising range of biogeochemical transformations. The biochemical basis of these microbial interactions is described, with an emphasis on energy-yielding redox biotransformations that cycle between the As (super 5+) and As (super 3+) oxidation states. The subsequent impact of As (super 3+) -oxidising and As (super 5+) -reducing prokaryotes on the chemistry of selected environments is also described, focusing on soda lakes with naturally high concentrations of the metalloid and on Southeast Asian aquifer sediments, where the microbial reduction of sorbed As (super 5+) and subsequent mobilisation of As (super 3+) into water abstracted for drinking and irrigation threaten the lives of millions.


ISSN: 1811-5209
Serial Title: Elements
Serial Volume: 2
Serial Issue: 2
Title: Microbial transformations of arsenic in the environment; from soda lakes to aquifers
Title: Arsenic
Author(s): Lloyd, Jonathan R.Oremland, Ronald S.
Author(s): Vaughan, David J.editor
Affiliation: University of Manchester, School of Earth, Atmospheric and Environmental Sciences, Manchester, United Kingdom
Affiliation: University of Manchester, School of Earth, Atmospheric and Environmental Sciences, Manchester, United Kingdom
Pages: 85-90
Published: 200604
Text Language: English
Publisher: Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society, International
References: 30
Accession Number: 2006-070840
Categories: Environmental geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
N37°55'00" - N38°07'00", W119°10'00" - W118°52'60"
Secondary Affiliation: U. S. Geological Survey, USA, United States
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200620
Program Name: USGSOPNon-USGS publications with USGS authors
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