The highest AQ index in Ohio (as of 1:00 EST) is currently the Canton and Massillon area. Particle Pollution (PM2.5) is measuring at 28 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the Columbus area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
Wednesday, November 20: Light southerly morning winds will limit pollutant dispersion in central Ohio, and areas of fog and mist will enhance particle production. By the afternoon, a cold front moving across the region will enhance mixing, while strengthening westerly winds and scattered showers will disperse pollutants. As a result, AQI levels will be high-Good. Thursday, November 21: Gusty west-southwesterly winds and periods of snow will enhance atmospheric mixing and dispersion as upper-level low pressure moves over Ohio. As a result, AQI levels will improve to Good. Friday and Saturday, moderate and gusty westerly to northwesterly winds behind a departing low pressure system will effectively disperse pollutants, allowing AQI levels to remain Good on both days. Sunday, weak upper-level high pressure over the Great Lakes will reduce mixing, and light southwesterly winds will carry pollutants into the Columbus region during the morning. However, winds will increase through the afternoon as a cold front approaches from the west, dispersing pollutants and leading to high-Good AQI levels. Monday, a cold front will move through central Ohio, enhancing mixing and producing moderate westerly to northwesterly winds. These weather conditions will keep pollutants well dispersed, yielding Good AQI levels.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
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Below is a list of counties in Ohio. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.