![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Air Quality Information
- Ozone Action Days: A Special Alert for People with Asthma and Other Respiratory Problems
- Asthma, Air Quality, and Environmental Justice: EPA's Role in Asthma Education and Prevention
- Reformulated Gasoline: A Major Step Toward Clean Air
- Reformulated Gasoline and Your Boat
- EPA Air Quality Trends (via Headquarters)
- National Air Pollutant Emission Trends, 1900-1998 (via Headquarters)
- TTNWeb - Technology Transfer Network
- New Ambient Air Monitoring Regulations
- Pursuant to 40 CFR 58.10, States are required to prepare and seek comment on a network monitoring plan annually. This page contains links to State and local ambient air monitoring plans for 2007. Additional links will be added as they become available.
- 2011 Air Monitoring Workshop Presentations
National
Maps of Air Quality Non-Attainment Areas
- Ozone, 1 hour: Map
- Ozone, 8 hour: Map
- Carbon Monoxide: Map
- Lead: Map
- Nitrogen Dioxide: Map
- Sulfur Dioxide: Map
- Particulate Matter - 2.5 microns (PM-2.5): Map
- Particulate Matter - 10 microns (PM-10): Map
State Implementation Plans - access electronic SIP files developed for each air agency in Region 4.
Additional information can be found at the:
Office
of Transportation and Air Quality in Washington, D.C.
Office of Air and
Radiation Publications in Washington, D.C.