Roughly 8 million metric tons of plastic enter the ocean each year, and the U.S. is one of the top contributors to plastic pollution. It’s been found in the seafloor and surface water, on beaches and shorelines. Microplastics—tiny plastics less than 5 millimeters in size —are pervasive worldwide and have been found inside marine animals, in drinking water and food.
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Source: Phys.org