
U.S. EPA @EPA
DYK? From 1999-2019 the number of children living in counties with pollutant concentrations above the levels of EPA’s Primary National Ambient Air Quality Standards decreased from 76% to 51%! Learn more about pollutants and #ChildStats: https://t.co/LTRAZb163S https://t.co/smbxuuroOI — PolitiTweet.org