This is the ultimate fact sheet for debunking what has become the U.S. Environmental Protection Agency’s most potent regulatory weapon — the claim that fine particulate matter (soot and dust called PM2.5) in outdoor air kills people. This sheet will be updated regularly as needed. This will be Version 1 (September 22, 2016). Please let me know if you have comments/suggestions. Continue reading FACT SHEET: Particulate Matter in Indoor/Outdoor Air Does NOT Cause Death