Saint Louis
 
  • AQI Loop
  • AQI
  • Ozone AQI
  • PM2.5 AQI
AQI Animation - http://www.epa.gov/airnow/2014/20140227/anim_aqi_stlouis_mo.gif
Peak AQI - http://www.epa.gov/airnow/2014/20140227/peak_aqi_stlouis_mo.jpg
Peak Ozone (8-hour) - http://www.epa.gov/airnow/2014/20140227/peak_o3_stlouis_mo.jpg
Peak Particles PM<sub>2.5</sub> (24-hour) - http://www.epa.gov/airnow/2014/20140227/peak_pm25_stlouis_mo.jpg
 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
 
Local Air Quality Resources
Action Day Program | Sign Up for Forecast Alerts - St. Louis Regional Clean Air Partnership
 
State Air Quality Resources
American Lung Association (ALA) All Lung Associations in Missouri
Mid-America Regional Council Skycast - Kansas City Metro Area
Missouri DNR - Air and Land Protection Division (ALPD) - Air Pollution Control Program (APCP)
Missouri DNR - Regional and Satellite Offices
Missouri Department of Natural Resources (DNR)
St. Louis Regional Clean Air Partnership Forecasts
Daily AQI
Thursday, February 27, 2014
Particles PM2.5
29 
Good
Particles PM10 Not Available
Ozone
34 
Good
select another date to see data and maps:
Note: data are available beginning August 1, 2010.

Other Information
Current Conditions and Forecasts
Air Quality Maps Archives (by region)