Great Lakes money to aid hotspot cleanup
The EPA will use most of the $1 billion approved by Congress for "areas of concern," like the St. Louis River estuary.
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The EPA will use most of the $1 billion approved by Congress for "areas of concern," like the St. Louis River estuary.
The big project will close popular waterfront access for the next two summers.
The agreement with the EPA allows cleanup at Munger Landing in Duluth.
The agreement with the EPA allows cleanup at Munger Landing in Duluth.
After years of measuring mercury in the estuary muck, in the fish and in the rain falling from the sky, scientists now say they know the culprit: Huge amounts of decades-old “legacy” mercury pollution stored in the sediment is still getting into the fish. In a study published in the journal Science of the Total Environment, published online March 13, scientists from the Environmental Protection Agency’s Duluth laboratory, the U.S. Geological Survey and several other institutions used isotope “fingerprinting’’ to trace mercury in the fish all the way back to its source, differentia...