Lessons From the Hudson River PCB Cleanup Project | ENR.
ENR Construction
AUGUST 8, 2012
Environment. Related Links: Why PCBs are So Persistent in the Environment. But by the mid-20th century, a growing body of research suggested that PCBs posed a threat to health and the environment. See this sidebar on why PCBs are so persistent in the environment.) ENR Subscriber Login ». -->. -->. Transportation.
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