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Tests show PFOS levels are declining in Mississippi

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Levels of a 3M chemical found in Mississippi River fish below the Twin Cities are declining but remain high between the 3M manufacturing plant in Cottage Grove and the dam at Hastings.

The Minnesota Pollution Control Agency recently reported these findings after extensive sampling over the past year of the water and aquatic life from Pool 2, a 32-mile length of the Mississippi between the Ford Dam and Hastings, for perfluorooctane sulfate, or PFOS.

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