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Workshop on Environmental Stability
of Chemicals in Sediments

April 8-10, 2003
San Diego, California


Scope of the Issue

Contaminated Sediments at Superfund Sites: What We Know So Far
Leah Evison
U.S. Environmental Protection Agency


Definition of Stability/Science Issues

In-Bed Transport Processes That Will Enhance or Suppress Chemical Stability
Louis Thibodeaux
Louisiana State University

Sequestration and Desorptive Flux of Hydrophobic Organic Contaminants from Sediments
Karl Rockne
University of Illinois-Chicago

Organic Sequestration and Bioavailability Control
Richard Luthy
Stanford University

Availability to Plants, Animals, Microorganisms
Danny Reible
Louisiana State University

Physicochemical Factors Controlling Stability of Toxic Heavy Metals in Sediments
Bill Patrick
Louisiana State University


Contaminated Sediment Flux Versus Biological Response

Measuring Toxicity and Bioaccumulation: Linking Exposure with Effects
Allen Burton
Wright State University

Bioturbation and Contaminant Flux Rates: Why One Size Doesn't Fit All
Joe Germano
Germano and Associates, Inc.

Approaches for Assessing the Bioavailability of Organic Contaminants to Benthic Organisms
Peter Landrum
Great Lakes Environmental Research Lab, NOAA

Assessing Exposure to Sediment-Associated Contaminants
Todd Bridges
U.S. Army Corps of Engineers

Use of Sediment Quality Guidelines and Related Tools for Assessment of Contaminated Sediments
Richard Wenning
Environ


Contaminants Fate, Mobility and Transformation

Phytoremediation in Contaminated Soils and Sediments
Jerry Schnoor
University of Iowa

Resolving the Non-Contaminant Metal Component of Sediments
Herbert Windom
Skidaway Institute of Oceanography

The Behavior of Mercury in Sediments
Gary Bigham
Exponent

Evaluating Risks from Metal Bioaccumulation by Benthic Organisms
Bill Adams
Riotinto


Contaminants Fate, Mobility, Transformation and Degradation

Water Column Processes Controlling Chemical Stability
Earl Hayter
U.S. Environmental Protection Agency

Nonparticle-Related Chemical Release from Sediments
John Connolly
QEA

Field-Based Tools for Assessment of Chemical Mobility of In-Place Sediment
Bart Chadwick
U.S. Navy

Bioavailability of PAHs and PCBs in Contaminated Sediment
Herbert Frederickson
U.S Army Corps of Engineers


Modeling Chemical Fate and Effects in Sediments

Sediment Stability Processes Influencing Contaminants
Joe Gailani
U.S. Army Corps of Engineers

Importance of Nonresuspension Sediment-Water Mass Transfer of Chemicals
Joe Depinto
Limno-Tech, Inc.

Screening Models to Predict Contaminant Fate
Carlos Ruiz
U.S. Army Corps of Engineers

Complex Dynamic Models to Predict Contaminant Fate in Water Bodies
Bob Ambrose
U.S. Environmental Protection Agency

Tiered Modeling Approaches to Predict Human Health and Ecological Risks
Katherine von Stackelberg, Menzie-Cura and Associates
Todd Bridges, U.S. Armu Corps of Engineers

Case Studies on the Capability of Models as Predictive Tools
John Connelly
QEA


Practical Measurement Strategies and Judging Success

Using Weight of Evidence Approaches for Sediment Management
Charles Menzie
Menzie-Cura and Associates

The Role of SQGs in Evaluating Ecological Effects of Contaminated Sediments
Donald MacDonald
NOAA

Risk Reduction, Remedy Goals, Cleanup Standards, Remedy Performance Standards, and Remedy Success: Can They Co-Exist?
Mark Sprenger
U.S. Environmental Protection Agency


Concluding Discussions

Definition of Stability Science Issues
Danny Reible
Louisiana State University

Summary of Workshop Conclusions


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