… 1,100 tons of microplastic ... floating over the western US ... modeling ... surprising sources of the nefarious pollutant … plastic rain is the new acid rain … modeling published ... Proceedings of the National Academy of Sciences (https://www.pnas.org/content/118/16/e2020719118) ... 84 percent of airborne microplastics ... comes from the roads outside of major cities ... Microplastics—particles smaller than 5 millimeters—come from a number of sources ... plastic bags and bottles ... washing machine ... synthetic clothing ... water ... applied to agricultural fields as fertilizer ... loads the soil with microplastic ...
