Historic Nitrate Levels Still Plague U.S. Rivers

During 1945 to 1980, nitrate levels in large U.S. rivers increased up to fivefold in intensively managed agricultural areas of the Midwest, according to a new U.S. Geological Survey study.

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Publication Date: 
30/10/2015
Environment News Network
Tags:
Water Pollution, River Pollution, United States Of America (US), Pesticides, Chemical Fertilisers, Freshwater Ecosystems, Fisheries