Contaminated Sediment Remediation: Assessment of Human Health Benefits and Risks
Many US surface waters have contaminated sediments and water. This can result in adverse effects on human health and the environment, thus the need for remediation. One method is to remove sediments from the riverbed by dredging. This may however release pollutants back into the water and lead to PM. PAHs and metal air emissions. This study will analyze contaminant microbiological degradation and compare human health risks and benefits associated with dredging and with other approaches, focusing first on PCBs and methylmercury. Degradation processes will be analyzed, combining empirical data on degradation pathways, with food-web modeling. Potential benefits associated with avoided intakes will be compared to human health risks due to contaminants resuspension and to PM2.5 from dredging. Results will enhance the understanding of the role of degradation pathways and inform management decisions to remediate contaminated sediments in the most cost-effective, health-protective manner.
Presented at SETAC Europe 28th Annual Meeting, Rome, Italy
Presented at SETAC North America 39th Annual Meeting, Sacramento, CA
Presented at the U.S. EPA Edison NJ.
Presented at the School of Public Health-Environmental Health Sciences Department in Ann Arbor, MI.