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Epidemiology:
doi: 10.1097/01.ede.0000339602.39449.9d
Abstracts: ISEE 20th Annual Conference, Pasadena, California, October 12-16, 2008: Symposium Abstracts

Soil Chemical Controls on Arsenic Bioaccessibility and Bioavailability

Basta, N T*; Scheckel, K G†; Bradham, K D‡; Richey, J S*; Dayton, E A*; Whitacre, S W*; Casteel, S W§

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*Ohio State University, Columbus, OH, USA; †U.S. EPA NRMRL, Cincinnati, OH, USA; ‡U.S. EPA NERL, Research Triangle Park, NC, USA; and §University of Missouri, Columbia, MO, USA.

Abstracts published in Epidemiology have been reviewed by the organizations of Epidemiology. Affliate Societies at whose meetings the abstracts have been accepted for presentation. These abstracts have not undergone review by the Editorial Board of Epidemiology.

ISEE-S11-03

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Abstract:

Soil chemical extraction methods and spectroscopic methods are able to characterize various pools and species of arsenic in soil. Use of these methods to estimate bioavailable is desirable to support characterization of arsenic contaminated soil but their ability to measure oral bioaccessibility and oral bioavailability of arsenic is unknown. We will present findings showing relationships between the use of soil chemical and spectroscopic methods to characterize arsenic bioavailability in contaminated soils. Limitations of these methods will be discussed. Results from several studies will be summarized that feature soils that vary in contaminant source, contaminant concentration and soil matrix properties. The presentation will explore the highly relevant question of the “Factors controlling the absorption of chemicals from soil” symposium “Does soil chemistry and/or mineralogy provide an adequate characterization of the controls on bioavailability so as to be predictive of RBA”?

© 2008 Lippincott Williams & Wilkins, Inc.

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