News & Events


EPA Issues White Paper for 1-hour SO2 NAAQS Implementation

Posting Date : 22 May 2012

EPA has prepared a white paper to solicit feedback on the options to determine if an area is meeting the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS), including modeling, monitoring, or a combination of the two methods:




EPA will accept written comments on the white paper through June 22, 2012.


EPA scheduled a series of stakeholder sessions to discuss implementation of the 1-hr SO2 NAAQS:

May 30, 2012:  Environmental and Public Health Organization Representatives, Washington, DC

May 31, 2012:  State and Tribal Representatives, Research Triangle Park, NC

June 1, 2012:  Industry Representatives, Research Triangle Park, NC


EPA has stated that it would post significant comments received at these sessions.


Website:  http://www.epa.gov/airquality/sulfurdioxide/implement.html