
U.S. EPA @EPA
#OTD in 2011 EPA finalized the Cross-State Air Pollution Rule (CSAPR), limiting the interstate transport of emissions of nitrogen oxides (NOX) and sulfur dioxide (SO2) that contribute to harmful levels of fine particle matter (PM2.5) and ozone in downwind states. https://t.co/MPYTNy1BmM — PolitiTweet.org