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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PCBs: Dredging Up a Problem
For more than a century, toxins generated by heavy industry settled to the bottom of the Indiana Harbor and Ship Canal (IHSC) in East Chicago, Ind., creating thick sludgy mud that is home to everything from heavy metals to polychlorinated biphenyls (PCBs). The U.S. Army Corps of Engineers has announced plans to dredge the canal, but the plan raises questions for scientists.
Understanding PCBs
Photo Gallery: A Research Cruise on Lake Michigan For more than a hundred years, toxins generated by heavy industry in East Chicago, Ind., settled to the bottom of the Indiana Harbor and Ship Canal (IHSC), creating a deep layer of thick sludgy mud that is home to everything from heavy metals to polychlorinated biphenyls (PCBs). […]
