Tag: PM

SO2 NAAQS: What’s Next?

By Clare Condon Aug 13, 2013 Environmental Permitting

Updated: Aug 22, 2017

By Timothy P. Fagan, BLR Air Expert tfagan@blr.com How were nonattainment designations determined? Once the NAAQS was set in 2010, EPA and state agencies worked together using monitoring data to determine what areas should be designated nonattainment and establish the area’s boundaries.  The newly designated nonattainment areas were designated as such because each had air […]

Air Permitting Training: Attainment vs. Nonattainment

By Clare Condon Apr 30, 2012 Environmental Permitting

Updated: Aug 22, 2017

By Timothy P. Fagan, BLR Air Expert tfagan@blr.com National Ambient Air Quality Standards (NAAQS) The CAA required EPA to develop NAAQS for six pollutants commonly found throughout the United States.  These pollutants, referred to as “criteria pollutants,” are: Sulfur dioxide; Particulate matter (PM-10 and PM-2.5); Carbon monoxide; Ozone; Nitrogen dioxide; and Lead. For each criteria […]