Integrated Forensics Approach to Fingerprint PCB Sources using Rapid Sediment Characterization (RSC) and Advanced Chemical Fingerprinting (ACF)
Cost and Performance rept.
ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM OFFICE (DOD) ARLINGTON VA
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This Cost Performance Report was prepared for Environmental Security Technology Certification Program ESTCP Environmental Restoration ER Project ER-200826 Integrated Forensics Approach to Fingerprint Polychlorinated Biphenyl PCB Sources using Rapid Sediment Characterization RSC and Advanced Chemical Fingerprinting ACF. We demonstrate an integrated approach to fingerprint sediment PCB contamination that combines sediment screening technologies on a large number of field samples followed by detailed PCB congener analysis in conjunction with ACF interpretation on a subset of selected laboratory samples to identify PCB sources to sediments. The current alternative approach without a forensics study merely assumes the most visible landholder often a Department of Defense DoD facility closest to the sediment contamination is responsible. The performance assessment shows the PCB analytical measurements meet the required data quality objectives DQO and the investigation techniques show reproducible results with simple artificial datasets as well as the real demonstration site datasets. Investigation techniques including receptor models were successful in reproducing original source signatures from artificial datasets that were constructed by mixing the original sources in varying proportions. Additionally, a real dataset from a demonstration site was used to show different investigation techniques produce comparable source results.
- Organic Chemistry
- Physical Chemistry
- Hydrology, Limnology and Potamology
- Environmental Health and Safety