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Duluth officials praise Minnesota blueprint addressing 'forever chemicals'


PFAS are ubiquitous in manufacturing, hard to destroy and known to have harmful effects in humans.
5:49 pm, Feb. 10, 2021
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The Lester River empties into Lake Superior in January 2021. The Lester River and other streams can carry contaminants like PFAS from runoff to the lake. (Steve Kuchera / File / News Tribune)
DULUTH Some 20 years after first confronting the contaminating-effects of human-made “forever chemicals,” the state of Minnesota introduced a blueprint Wednesday, Feb. 10, for how to prevent, manage and clean up contamination from those chemicals.
The Minnesota Pollution Control Agency s blueprint seeks legislative solutions, including the designation of PFAS, or per- and polyfluoroalkyl substances, as hazardous substances. The blueprint also seeks funding to begin broader sampling for the presence of PFAS in drinking water, fish and places such as Duluth’s Western Lake Superior Sanitary District. ....

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Lake Superior contaminants face year of scrutiny


Lake Superior contaminants face year of scrutiny
In February, the Minnesota Pollution Control Agency will release a blueprint on how it plans to begin to deal with forever chemicals.
7:00 am, Jan. 27, 2021
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The Lester River empties into Lake Superior earlier this month. The Lester River and other streams can carry contaminants like PFAS from runoff to the lake. (Steve Kuchera / [email protected])
In Lake Superior, the sediment at the bottom of its watery depths tells a story.
It’s where things settle and accumulate, including contaminants. In its way, the sediment serves as a historical record of the lake.
In core samples, research scientists can see when concentrations of, say, mercury were highest, and how now-much-lower concentrations at the top layers of the sample means the contaminant is no longer being so heavily put into the lake. ....

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