There are also concerns that the toxin can build up in the fatty tissues of aquatic life, making fish in the area unsafe for human consumption.Īccording to the Monroe News, the new clean-up effort will be divided into three components: PCBs, short for polychlorinated biphenyls, are a likely carcinogen and make water unsafe for human use. This stretch of the river is surrounded by several industrial plants, which have for years discharged oils, grease, heavy metals, and PCBs into the river.Ī recent sampling showed some areas with PCB concentrations exceeding 50 parts per million, which are considered hazardous levels. The Area of Concern (AOC) includes the lower 2.6 miles of the river, which flows southeast into the Lake Erie western basin at Monroe Harbor. Plans are now in motion, however, to begin a joint state and federally-funded dredge of the river that could cost $15 million and aims to have the site de-listed. The river has been the site of clean-up efforts for years, but the PCBs remain. ![]() ![]() The River Raisin, a Great Lakes Area of Concern in southeastern Michigan, once contained some of the highest concentrations of toxic PCBs ever found in water. The River Raisin AOC starts downstream from the low head dam at Winchester Bridge in Monroe, Mich.
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