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Tons of Plastic Trash Enter the Great Lakes Every Year

Awareness is rising worldwide about the scourge of ocean plastic pollution, from Earth Day 2018 events to the cover of National Geographic magazine. But few people realize that similar concentrations of plastic pollution are accumulating in lakes and rivers. One recent study found microplastic particles—fragments measuring less then five millimeters—in globally sourced tap water and beer brewed with water from the Great Lakes.  According to recent estimates, more than 8 million tons of plastic enter the oceans every year. Using that study's calculations of how much plastic pollution per person enters the water in coastal regions, one of us (Matthew Hoffman) has estimated that around 10,000 tons of plastic enter the Great Lakes annually. Now we are analyzing where it accumulates and how it may affect aquatic life.  Read more...

 

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