248 Symposium--Sorption to Bioavailability: II

Oral Session
S02 Soil Chemistry A contaminant in soil or sediment is partitioned among multiple phases, including the solid phase, dissolved organic matter, and water. Such phase partitioning regulates the ultimate biological endpoints or processes (e.g., biodegradation, bioaccumulation, ecotoxicity) by influencing the chemical’s bioavailability. At the center of debate is the bioavailability of sorbed contaminants, and the contributing variables (e.g., aging). This symposium will serve as an opportunity for a holistic discussion of contaminant sorption and bioavailability, and the interplaying mechanisms. We welcome presentations covering both inorganic (e.g., heavy metals) and organic contaminants, and both mechanistic and applied studies.


Soils & Environmental Quality
Tuesday, October 18, 2011: 1:05 PM-4:30 PM
Henry Gonzalez Convention Center, Room 206A

Share |
David McNear and Sanjai J. Parikh
1:15 PM
Reduction In Soil Microcosms As a Mechanism of Influencing Arsenic Bioavailability—the Relative Effect of Sulfate and Iron Reduction.
Benjamin C. Bostick, Columbia University; Andrew N. Quicksall, Southern Methodist University; Jing Sun, Columbia University
1:45 PM
Hexavalent Chromium Remediation by Redox-Sorption Processes.
Alison P. Murata, University of Manitoba; Francis Zvomuya, University of Manitoba; Tee Boon Goh, University of Manitoba
2:00 PM
Relative Effects of CaCO3 and Ca(OH)2 Amendments On the Solubility, Localization and Potential Bioavailability of Mn, Zn and Cu In An Aerated Dredge Spoil Material.
Courage Bangira, Texas A&M University; Richard Loeppert, Texas A&M University; Terry Moore, BP Remediation Management; Frank Hons, Texas A&M University; Hamid Shahandeh, Texas A&M University
2:15 PM
2:25 PM
Tungsten In California Soils and Sediments Affected by Mine Tailings.
Myles Davis, University of California-Riverside; Christopher Amrhein, University of California-Riverside
2:40 PM
Effect of Heavy Metals On Sorption of Phenoxyalkanoic Herbicides by Calcareous Soils.
Zahir Rawajfih, Jordan University of Science and Technology; Najwa Alnsour, The Hashemite University
2:55 PM
Assessing Frayed-Edge Site Density and Contaminant Desorption In Hyperalkaline-Weathered Hanford Sediment.
Yi-Ting Deng, University of Georgia; Aaron Thompson, University of Georgia; Nicolas Perdrial, University of Arizona
3:10 PM
3:20 PM
New Roles for Siderophores In the Biogeochemical Cycling of Contamiant Metals.
Owen Duckworth, North Carolina State University; Martin Akafia, North Carolina State University; John R. Bargar, Stanford Synchrotron Radiation Lightsource; James Harrington, North Carolina State University; Andrzej A. Jarzecki, The Brooklyn College and the Graduate School of the City University of New York; Dorothy L. Parker, Scripps Institution of Oceanography
4:05 PM
4:30 PM
<< Previous Session | Next Session >>
See more from this Division: S02 Soil Chemistry