2012 PM25 NAAQS Downloads folder for 2012 PM25 NAAQS https://www.tceq.texas.gov/downloads/air-quality/sip/pm/designations/naaqs-pm25-2012 https://www.tceq.texas.gov/@@site-logo/TCEQ-1072x1072.png 2012 PM25 NAAQS Downloads folder for 2012 PM25 NAAQS There are currently no items in this folder.