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CROSS VALIDATION OF TWO PARTITIONING-BASED SAMPLING APPROACHES IN MESOCOSMS CONTAINING PCB CONTAMINATED FIELD SEDIMENT, BIOTA, AND ACTIVATED CARBON AMENDMENT
Schmidt, S., A. Wang, P. Gidley, A. Wooley, G. Lotufo, R. Burgess, U. Ghosh, L. Fernandez, and P. Mayer.
Environmental Science & Technology 51(17):9996-10004(2017)

This study compared two passive sampling-based approaches—(1) ex situ equilibrium sampling with multiple thicknesses of silicone and (2) in situ pre-equilibrium sampling with LDPE loaded with performance reference compounds—for measuring the bioavailable concentrations of PCBs in contaminated sediments. The study demonstrated that the two methods generated similar results. This information provides environmental managers with the ability to select between these two methods (depending on the circumstances) and know that the results will be comparable.



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