U.S. EPA Regional, State, and Local Dispersion Modelers Workshop Slides Available

U.S. EPA has made available the presentations from the U.S. EPA Regional, State, and Local Dispersion Modelers Workshop (Workshop) held in Atlanta, GA on June 9, 2011. ALL4’s ambient group members Dan Dix and Colin McCall were in attendance. The presentations can be found here. The focus of the meeting was the newly established 1-hour nitrogen dioxide (NO2) and sulfur dioxide (SO2) National Ambient Air Quality Standards (NAAQS), and the new 24-hour particulate matter less than 2.5 microns (PM2.5) NAAQS.