Columbus
 
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
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)
 
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 8:00 EDT
26
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 21 Good
Particles (PM2.5) 26 Good
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
90
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
48
Good
Health Message: None
AQI - Pollutant Details
Ozone
90
Moderate
Particles (PM2.5)
50
Good
Ozone
48
Good
Particles (PM2.5)
29
Good
Forecast Discussion: Wednesday, July 18: Light northerly winds will gradually bring cooler air into the Columbus region. However, sunny skies will support the formation of ozone, yielding Moderate AQI levels. Thursday, July 19: Light easterly winds will reduce pollutant dispersion. In addition, an upper-level ridge of high pressure will move over Ohio, limiting mixing and producing mostly sunny skies with temperatures in the mid-80s. These conditions will support the formation of ground-level ozone, leading to high-Moderate AQI levels. Friday and Saturday, scattered thunderstorms and mostly cloudy skies will reduce ozone formation, and moderate southerly winds will increase mixing and dispersion. Therefore, AQI levels will be Good on both days. Sunday and Monday, mostly cloudy skies and thunderstorms will continue to inhibit ozone formation. In addition, light to moderate winds associated with a passing low pressure system will aid mixing and bring cleaner air into the region. These conditions will lead to continued Good AQI levels on both days.
Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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