Accession Number : AD1002553


Title :   Passive PE Sampling in Support of In Situ Remediation of Contaminated Sediments


Descriptive Note : Technical Report


Corporate Author : RM Parsons Laboratory Cambridge United States


Personal Author(s) : Gschwend,Philip ; Palaia,Kevin


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1002553.pdf


Report Date : 01 Aug 2015


Pagination or Media Count : 87


Abstract : Our overarching goal was to show PE passive sampling is suited to assessing contaminated sediment sites. Hence, we sought to demonstrate: (a) PE effectively evaluates porewater concentrations of contaminants, (b) PE can delineate the horizontal and vertical extent of contamination, (c) PE is suited for long term monitoring, and (d) the PE passive sampling approach is commercially viable. Laboratory testing showed the PE samplers measured pore waters more accurately than the common commercial practice of using sediment concentrations. PE sampling readily revealed the distribution of sediment contamination by PCBs at the demonstration site. PE samplers showed the site had pg/L levels of individual PCBs in pore waters and bottom waters. Sand cap data indicated no upward PCB fluxes through those caps. Finally, QA/QC, sensitivity, ease of use, and cost metrics all supported the conclusion that PE passive sampling is commercially viable.


Descriptors :   polyethylene , sampling , Polychlorinated biphenyls , sediments , contamination , soil pollution , ground water , monitoring , Soil sampling , capping


Distribution Statement : APPROVED FOR PUBLIC RELEASE