Are PCBs in the Great Lakes approaching a "new equilibrium?" (polychlorinated biphenyls; findings of EPA's proposed Great Lakes Water Quality Guidance questionable)

Article Abstract:

The EPA's proposed 'Great Lakes Water Quality Guidance' (GLWQG) has concluded that polychlorinated biphenyls and other contaminants in the Great Lakes are attaining a 'new equilibrium' with external sources and that chemical concentrations in its fishes have substantially slowed for the last 10 years. Analysis reveals, however, that this finding is not supported by sufficient scientific evidence. The proposed new equilibrium hypothesis is impossible and therefore, the EPA should make important revisions in the GLWQG.

Administration of Air and Water Resource and Solid Waste Management Programs, Water Pollution Control, Toxic Substances Regulation, Reports, United States. Environmental Protection Agency, Industry regulations, Water pollution, Great Lakes (North America), Hazardous wastes

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Variation in Net Trophic Transfer Efficiencies among 21 PCB Congeners

Article Abstract:

Researchers in Wisconsin determined that, for coho salmon in Lake Michigan, elevated chlorinated congeners did not help the fish excrete PCBs from their systems.

United States, Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Pollutants produced & recycled, Finfish, Salmon, Finfish Fishing, Wisconsin, Water Pollution Control R&D, Statistical Data Included, Research, Pollution control industry, Chemical industry, Fish industry, Fisheries, Water pollution research, Lake Michigan

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