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)
104 
Unhealthy for Sensitive Groups
Health Message: Active children and adults, and people with lung disease, such as asthma, should reduce prolonged or heavy exertion outdoors.
ACTION DAY
Air Quality Index (AQI)
50 
Good
Health Message: None
AQI - Pollutant Details
Ozone
104 
Unhealthy for Sensitive Groups
Particles (PM2.5)
68 
Moderate
Particles (PM2.5)
50 
Good
Ozone
49 
Good
Forecast Discussion: Wednesday, July 29, is an Air Quality Alert Day. Mostly sunny skies and hot temperatures will enhance ozone production in central Ohio. Furthermore, light winds will limit dispersion. These conditions, combined with pollutant carryover from previous days, will result in Unhealthy for Sensitive Groups AQI levels for ozone. Thursday, July 30: A cold front will move through Ohio early in the day. Moderate northwesterly winds behind the front will disperse pollutants and bring a cleaner air mass into the Columbus region, lowering AQI levels to Good. Friday, surface high pressure building to the west of Ohio will generate light to moderate westerly winds in the Columbus region, dispersing pollutants. However, mostly sunny skies and warm temperatures will support ozone formation, resulting in low-Moderate AQI levels. Saturday, a weak cold front moving through the Buckeye State will shift winds from west-southwesterly to northwesterly, dispersing pollutants. In addition, cloud cover and scattered thunderstorms will reduce ozone formation. Therefore, AQI levels will be Good. Sunday, as surface high pressure moves over Ohio, lighter winds will reduce pollutant dispersion in the Columbus region, and mostly sunny skies and warm temperatures will support ozone formation. As a result, AQI levels will be low-Moderate. Monday, as surface high pressure moves east of Ohio and a cold front approaches from the northwest, southwesterly winds will gradually bring pollutants into the Columbus region. In addition, mostly sunny skies and warm temperatures will continue to enhance ozone formation. These conditions will keep AQI levels Moderate.

Current Conditions
Air Quality Index (AQI)
observed at 17:00 EDT
71
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
AQI - Pollutant Details
Ozone 71 Moderate
Particles (PM2.5) 69 Moderate

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