Columbus
 
Data courtesy of:
 

 
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 Day
 
Local Air Quality Resources
Forecast | MORPC's Air Quality Program | Today's AQI Data
 
State Air Quality Resources
American Lung Association (ALA) of Ohio
Ohio EPA - Division of Air Pollution Control (DAPC)
Ohio EPA - For More Information
Ohio EPA's AIROHIO web site
Ohio Environmental Protection Agency (EPA)
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
54 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
53 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Ozone
54 
Moderate
Particles (PM2.5)
53 
Moderate
Ozone
46 
Good
Particles (PM2.5)
53 
Moderate
Forecast Discussion: Wednesday, July 27: Light northerly winds will limit pollutant dispersion in central Ohio. In addition, partly to mostly sunny skies and warm temperatures will aid ozone formation. However, scattered afternoon thunderstorms will enhance atmospheric mixing and reduce ozone production. As a result, AQI levels will be high-Moderate. Thursday, July 28: As an upper-level trough of low pressure moves over the Great Lakes region, increasing clouds and thunderstorms will inhibit ozone formation. However, light winds will continue to limit pollutant dispersion, and increasing relative humidity will aid particle production. Therefore, AQI levels will be low-Moderate. Friday and Saturday, mostly cloudy skies and scattered thunderstorms will limit ozone formation in the Columbus region. In addition, light northwesterly to northeasterly winds will gradually bring a cleaner air mass into the area. As a result, AQI levels will be low-Moderate on Thursday and Good on Friday. Sunday and Monday, increasing sunshine and temperatures in the mid-80s will enhance ozone formation, and light and variable winds will reduce pollutant dispersion. These conditions will lead to Moderate AQI levels on both days.

Current Conditions
Air Quality Index (AQI)
observed at 5:00 EDT
41
Good
Health Message: None
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 41 Good
Particles (PM2.5) 30 Good

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