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15 hours ago · Microplastics are fragments of any type of plastic less than 5 mm (0.20 in) in length, [1] according to the U.S. National Oceanic and Atmospheric Administration (NOAA) [2] [3] and the European Chemicals Agency. [4] They cause pollution by entering natural ecosystems from a variety of sources, including cosmetics, clothing, food packaging, and ...
