Saint Louis
 
Data and Forecasts courtesy of:
 

 
AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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
Air Quality Forecast
Today's High Tomorrow's High
Data Not Available Data Not Available
AQI - Pollutant Details
Data Not Available Data Not Available

Current Conditions
Air Quality Index (AQI)
observed at 21:00 CST
60
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 6 Good
Particles (PM10) 8 Good
Particles (PM2.5) 60 Moderate
 
Data and Forecasts courtesy of:

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification
 
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St. Louis, MO
 
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