VA (Veterans) study of 531 RA-ILD (among 9,701 incident RA) vs 68,852 matched controls - finds exposure to fire smoke PM2.5 assoc w/ RA-ILD/aOR 1.98 (but not RA). NOx, ozone, and PM10 assoc w/ seroneg. RA risk (aOR 1.16-1.25) . Pollution increases risk of RA & RA-ILD… https://t.co/AuG4rRtx4r https://t.co/XyHtjrSfhi