Air Quality Planning and Emission Standards

The Ambient Air Quality Standards for Mississippi are specified in 11 Miss. Admin. Code, Pt. 2., Ch.4. Except for odor, the ambient air quality standards for Mississippi are the Primary and Secondary National Ambient Air Quality Standards (NAAQS) as duly promulgated by the United States Environmental Protection Agency (EPA). EPA has set national air quality standards for six principal air pollutants (also referred to as criteria pollutants):
nitrogen dioxide (NO2)
ozone (O3)
sulfur dioxide (SO2)
particulate matter (PM)
carbon monoxide (CO)
lead (Pb).

Current Status with Air Quality Standards

Mississippi is currently designated as attainment, that is meeting, all ambient air quality standards. Click here, for more information.

Prevention of Air Pollution Emergency Episodes

Mississippi also has regulations to prevent the excessive buildup of air pollutants during air pollution episodes, thereby preventing the occurrence of an emergency due to the effects of these pollutants on the health of persons. These regulations require action during periods of an Air Pollution Alert, Air Pollution Warning, or Air Pollution Emergency. 11 Miss. Admin. Code, Pt. 2., Ch.3. sets forth these requirements.

Air Emissions Standards

Mississippi has adopted Federal Standards (New Source Performance Standards, National Emissions Standards for Hazardous Air Pollutants, etc.) by reference. State specific emissions standards for Mississippi are in:

Other Links


National Ambient Air Quality Standards (NAAQS)
Criteria Pollutant Information
Federal Emission Standards

To contact MDEQ staff for more information on Air Quality Planning click HERE.