This document provides information on the screening procedure that will detect the total amount of planar compounds - including polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), coplanar polychlorinated biphenyl congeners (PCBs), and high molecular weight polynuclear aromatic hydrocarbons (PAHs) - in solvent extracts of environmental samples of soil, sediment, tissue, and water.
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