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.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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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.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1999
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