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Arsenic chemistry in soils: An overview of thermodynamic predictions and field observations

Arsenic chemistry in soils: An overview of thermodynamic predictions and field observations Published information, both theoretical and experimental, on As chemical behavior in soils is reviewed. Because of many emission sources, As is ubiquitous. Thermodynamic calculations revealed that As(V) species (HAsO 4 2- >H2AsO 4 - at pH 7) are more abundant in soil solutions that are oxidized more than pe+pH>9. Arsenic is expected to be in As(III) form (HAsO 2 0 =H3AsO 3 0 >AsO 2 - =H2AsO 3 - at pH 7) in relatively anoxic soil solutions with pe+pH<7. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water, Air, Soil Pollution Springer Journals

Arsenic chemistry in soils: An overview of thermodynamic predictions and field observations

Water, Air, Soil Pollution , Volume 93 (4) – Apr 11, 2006

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References (61)

Publisher
Springer Journals
Copyright
Copyright © 1997 by Kluwer Academic Publishers
Subject
Environment; Hydrogeology; Environment, general; Atmospheric Protection/Air Quality Control/Air Pollution; Terrestrial Pollution; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
ISSN
0049-6979
eISSN
1573-2932
DOI
10.1007/BF02404751
Publisher site
See Article on Publisher Site

Abstract

Published information, both theoretical and experimental, on As chemical behavior in soils is reviewed. Because of many emission sources, As is ubiquitous. Thermodynamic calculations revealed that As(V) species (HAsO 4 2- >H2AsO 4 - at pH 7) are more abundant in soil solutions that are oxidized more than pe+pH>9. Arsenic is expected to be in As(III) form (HAsO 2 0 =H3AsO 3 0 >AsO 2 - =H2AsO 3 - at pH 7) in relatively anoxic soil solutions with pe+pH<7.

Journal

Water, Air, Soil PollutionSpringer Journals

Published: Apr 11, 2006

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