Polyethylene and polypropylene beads threaten shoreline ecosystems

Western Earth Sciences professor Patricia Corcoran studies polyethylene and polypropylene pieces used in a wide variety of plastic products that have found their way into the ecosystems along the shores of lakes Huron, Erie and St. Clair. Most recently, she scoured the shores of Humber Bay in Lake Ontario, near Toronto. (Phys.org, 25/04/14)

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