GLIN Posted August 9, 2018 Share Posted August 9, 2018 A recent study found the Apostle Islands National Lakeshore had the highest concentration of microplastics out of 35 national parks surveyed. A group of researchers this summer are trying to find out why. Read the full story by KBJR-TV – Superior, WI. View the full article Link to comment Share on other sites More sharing options...
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