84028 Sorption, Degradation, and Transformation in Soils and Sediments: Sinks Or Sources?

See more from this Division: Live Streaming CEU Program
See more from this Session: Soil and Environmental Quality: Processes and Risk Assessment

Monday, November 4, 2013: 10:45 AM
Tampa Convention Center, Room 37 and 38

Linda S. Lee, Department of Agronomy, Purdue University, West Lafayette, IN
Abstract:
Sorption and degradation by soil often attenuate transport and persistence of chemicals, thus reducing the contamination of groundwater or stream water. However, processes within soils and sediments may not be sufficient to reduce contaminant concentrations, and in some cases, can lead to contaminants of greater concern. An overview of the soil processes that affect contaminant behavior will be briefly presented followed by relevant examples where the soil may not successfully attenuate. Examples will include several chemical classes such as fungicides, hormones, pharmaceutical, and perfluoroalkyl substances.  Management and remediation options towards minimizing contaminant transport and impact will be discussed where appropriate.

See more from this Division: Live Streaming CEU Program
See more from this Session: Soil and Environmental Quality: Processes and Risk Assessment