this post was submitted on 17 Aug 2023
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This is the best summary I could come up with:
About 90% of water samples taken over the last 10 years from the Great Lakes contain microplastic levels that are unsafe for wildlife, a new peer-reviewed paper from the University of Toronto finds.
The Great Lakes provide drinking water to over 40 million people in the US and Canada, hold about 90% of the US’s freshwater, and are home to 3,500 species of plants and animals.
The authors reviewed data from peer-reviewed studies from the last 10 years, which showed the highest levels are found in tributaries leading to the lakes, or around major cities like Chicago and Toronto.
Though myriad microplastic sources exist, wastewater treatment plants seem to be a major Great Lakes basin contributor, as they are elsewhere, Hataley said.
She noted concerning levels of microplastics have been found in sport fish consumed by humans and beer brewed with Great Lakes water.
Though Canadian and US governments have known about microplastic levels for at least 10 years, it can take time for regulators to act, and the new paper highlights the situation’s urgency, Hataley said.
I'm a bot and I'm open source!
No big deal, just some plastic in the fish and beer.