Monday, November 5, 2007: 9:25 AM
Convention Center, Room 230, Second Floor
91: Arsenic Chemistry in Soils
Sponsor:S02 Soil Chemistry
Presiding:Konstantinos C. Makris, The University of Texas at San Antonio
9:25 AM Introductory Remarks
9:30 AM91-1Real-Time Surface-Chemistry of Arsenite Oxidation by Hydrous Manganese Oxide.
Matthew Ginder-Vogel, University of Delaware, Donald L. Sparks, University of Delaware
9:45 AM91-2The Influence of Phosphate and Sulfate on Arsenic Oxidation Via Hydrous Mn-Oxides.
Sanjai Parikh, University of Delaware, Donald L. Sparks, University of Delaware
10:00 AM91-3Reductive Iron Transformations Can Promote and Inhibit Arsenic Mobility.
Katharine Tufano, Stanford University, Scott Fendorf, Stanford University
10:15 AM91-4Release and Transport Pathways of Arsenic within Seasonally Saturated, Tropical Wetlands of the Mekong Delta.
Benjamin Kocar, Stanford University, Samantha Ying, Stanford University, Scott Fendorf, Stanford University
10:30 AM91-5Speciation of Arsenic in Sulfidic Solutions Using X-ray Absorption Spectroscopy.
Douglas G. Beak, U.S. EPA, Richard T. Wilkin, U.S. EPA, Robert Ford, US-EPA(Environ. Protection Agency), Shelly D. Kelly, Argonne National Laboratory
10:45 AM Break
11:00 AM91-6Arsenic Speciation using Extended X-Ray Absorption Fine Structure and Chemical Extraction Methods to Assess Oral Bioavailability.
Nicholas Basta, Ohio State University - Columbus, Jill Foster, Ohio State University - Columbus, Kirk Scheckel, US-EPA(Environ. Protection Agency)
11:15 AM91-7Microbe-Mineral Interactions and their Influence on ArsenicTransformations in the Soil Environment.
Brandon Lafferty, 152 Townsend Hall, Donald L. Sparks, University of Delaware
11:30 AM91-8Arsenic Accumulation and Transformations in Agricultural Drainage Evaporation Basins.
Suduan Gao, USDA-ARS, Ji-hun Ryu, Desert Research Institute, Kenneth Tanji, Univ. of Calif., Davis
11:45 AM91-9Predicting Selenite Adsorption by Soils Using Soil Chemical Parameters in the Constant Capacitance Model.
Sabine Goldberg, USDA-ARS, U.S. Salinity Laboratory, Scott M. Lesch, USDA-ARS, U.S. Salinity Laboratory, Donald L. Suarez, USDA-ARS, U.S. Salinity Laboratory
12:00 PM Adjourn

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