Sorption and bioavailability of arsenic in selected Bangladesh soils.

Environmental Geochemistry and Health
R NaiduGary Owens

Abstract

The bioavailability of arsenic (As) in the soil environment is largely governed by its adsorption-desorption reactions with soil constituents. We have investigated the sorption-desorption behaviour of As in four typical Bangladeshi soils subjected to irrigation with As-contaminated groundwater. The total As content of soils (160 samples) from the Laksham district ranged from <0.03 to approximately 43 mg kg(-1). Despite the low total soil As content, the concentration of As in the pore water of soils freshly irrigated with As-contaminated groundwater ranged from 0.01 to 0.1 mg l(-1). However, when these soils were allowed to dry, the concentration of As released in the pore water decreased to undetectable levels. Remoistening of soils to field moisture over a 10-day period resulted in a significant (up to 0.06 mg l(-1)) release of As in the pore water of soils containing >10 mg As kg(-1) soil, indicating the potential availability of As. In soils containing <5 mg As kg(-1), As was not detected in the pore water. A comparison of Bangladeshi soils with strongly weathered long-term As-contaminated soils from Queensland, Australia showed a much greater release of As in water extracts from the Australian soils. However, this was attr...Continue Reading

References

Oct 1, 1989·Clinics in Dermatology·T J Ryan, S B Curri
Mar 1, 1986·Journal of the American College of Cardiology·M L LadenheimG A Diamond
Aug 15, 2002·Bulletin of Environmental Contamination and Toxicology·M G M AlamM Westbrooke
Sep 17, 2002·Bulletin of Environmental Contamination and Toxicology·P BhattacharyaA A Khan
Feb 5, 2003·Environmental Science & Technology·Andrew A Meharg, Md Mazibur Rahman
Feb 6, 2004·Bulletin of Environmental Contamination and Toxicology·A L JuhaszZ H Cao
Sep 1, 2004·Trends in Plant Science·Andrew A Meharg
Apr 7, 2006·European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology·R BradfordM Deighton

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Citations

Jan 17, 2009·Environmental Geochemistry and Health·Ravi Naidu, Prosun Bhattacharya
Jan 7, 2009·Environmental Geochemistry and Health·Prosun BhattacharyaRavi Naidu
Jun 10, 2019·Environmental Science and Pollution Research International·Anirban BiswasTarit Roychowdhury

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