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The production and use of polychlorinated biphenyls (PCBs) have been restricted in North America since the 1970s; yet, PCBs are still detected in all components of the Great Lakes ecosystems. Our objective was to determine how total PCB (PCBT) concentrations in spottail shiner (Notropishudsonius) changed over the period 1975–2007 in the lower Great Lakes. Trends were best described by three basic...
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