Abstract
Sediments collected from the Elizabeth River, VA, a highly contaminated subestu-ary of the James River, were analyzed for polycyclic aromatic hydrocarbons (PAHs). Select isomer ratios (BbF/BkF, BaA/chrysene, and IP/BghiP) and molecular weight fractions (ΣPAH202/202-276 and ΣPAH252/202-276) were identified as source indicators for two former wood-treatment facilities (Atlantic Wood and Eppinger & Russell) located on the southern branch of the Elizabeth River. These facilities are suspected as probable contributors to the high PAH contamination in sediments. Plots of the wood-treatment source indicators, along with those for coal, wood, and automotives, revealed a likely contribution from only one of the former wood-treatment facilities, in addition to the possible contribution of coal/coal gasification to PAH contamination in sediments of the main stem and southern branch of the Elizabeth River. By examining PAH isomer ratios from known or suspected sources, it is possible to distinguish multiple sources of PAHs to an ecosystem.
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