IIHR researchers report dangerously high levels of toxic PCBs in the deep sediments lining the Indiana Harbor and Ship Canal (IHSC) in East Chicago, Ind. They say the discovery is cause for concern.
IIHR researchers report dangerously high levels of toxic PCBs in the deep sediments lining the Indiana Harbor and Ship Canal (IHSC) in East Chicago, Ind. They say the discovery is cause for concern.
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