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New study confirms micro-plastics in the Great Lakes

May 08, 2018 05:45AM ● Published by Editor

Watch the video report from KARE-TV

U of M researchers have found microplastic contamination in tap water taken from the Great Lakes, and beer brewed with water from the Great Lakes, in a big study recently published in a scientific journal.  By Lou Raguse of KARE-TV on May 7, 2018


MINNEAPOLIS - When choosing a brand of beer to drink, you probably don't consider the water used to brew it.

U of M researcher Mary Kosuth found microplastics in every beer she tested that uses water from the Great Lakes. That includes three beers brewed in Duluth.

"We wanted to compare the source water with the beer to see if there was any correlation between that," she said.

Kosuth also found microplastics in Duluth tap water, which comes from Lake Superior too. 

It was a part of a big study, recently published in a scientific journal, looking into contamination of tiny plastic fibers called microplastics. They come from synthetic fabric in our clothes we wash and plastics we use and throw away that end up in our water that we end up drinking.

"As far as the science goes, I don't think we have a level yet of plastic that's safe to consume," Kosuth said.

The health effects are still unknown, which is why people like Trevor Russell are trying to spread awareness.

"It's a below the radar issue," Russell said.

As water program director for the Friends of the Mississippi River, he warns of what continued microplastic contamination could mean.

"We won't be able to eat fish out of this river. We might not be able to fish out of this river in the same way we do today," Russell said.

Kosuth hopes her study leads to more research on the biggest sources of microplastics and exactly how big of a potential health hazard we're facing.

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