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 DayAction 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)
71 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
50 
Good
Health Message: None
AQI - Pollutant Details
Ozone
71 
Moderate
Particles (PM2.5)
53 
Moderate
Particles (PM2.5)
50 
Good
Ozone
49 
Good
Forecast Discussion: Friday, July 25: Winds will diminish as surface high pressure moves across northern Ohio, reducing pollutant dispersion. However, partly cloudy skies will reduce ozone formation, and pollutant carryover from previous days will be low. As a result, AQI levels will be Good. Saturday, July 26: Light southerly winds will develop ahead of an approaching cold front, transporting additional pollutants into central Ohio. Furthermore, partly sunny skies and warmer temperatures will increase ozone formation, leading to Moderate AQI levels. Sunday and Monday, a cold front will move through Columbus, increasing vertical mixing in the atmosphere and shifting winds to west-northwesterly. These winds will help to disperse pollutants. In addition, widespread showers and thunderstorms will reduce ozone formation. As a result, AQI levels will be Good on both days. Tuesday, as surface high pressure builds back into Ohio, winds will diminish, reducing pollutant dispersion in Columbus. Furthermore, mostly sunny skies will aid ozone production, resulting in low-Moderate AQI levels. Wednesday, a weak low-pressure system moving through central Ohio will generate light to moderate northwesterly winds, helping to disperse pollutants. In addition, partly cloudy skies will reduce ozone formation, leading to Good AQI levels.

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EDT
55
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5) 55 Moderate
Ozone 28 Good

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