XAS Studies of Arsenic in the Environment

Journal Article · Fri Feb 02 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2644477· OSTI ID:21054597

Charnock, J M ^[1]; Polya, D A; Gault, A G ^[2]; Morgan, A J ^[3]

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1. CCLRC Daresbury Laboratory, Warrington, Cheshire, WA4 4AD (United Kingdom)
2. School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL (United Kingdom)
3. School of Biosciences, Cardiff University, Cardiff, CF10 3TL (United Kingdom)

Arsenic is present in low concentrations in much of the Earth's crust and changes in its speciation are vital to understanding its transport and toxicity in the environment. We have used X-ray absorption spectroscopy to investigate the coordination sites of arsenic in a wide variety of samples, including soil and earthworm tissues from arsenic-contaminated land, and human hair and nail samples from people exposed to arsenic in Cambodia. Our results confirm the effectiveness of using X-ray absorption near edge structure (XANES) and X-ray absorption fine structure (EXAFS) spectroscopy to determine speciation changes in environmental samples.

• OSTI ID: 21054597
• Journal Information: AIP Conference Proceedings, Vol. 882, Issue 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644477; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ABSORPTION
ABSORPTION SPECTROSCOPY
ANNELIDS
ARSENIC
CAMBODIA
CHEMICAL STATE
EARTH CRUST
ENVIRONMENTAL MATERIALS
FINE STRUCTURE
HAIR
HUMAN POPULATIONS
NAILS
POLLUTION
SOILS
TOXICITY
X-RAY SPECTRA
X-RAY SPECTROSCOPY