The highest AQ index in Ohio (as of 6:00 EST) is currently the Toledo area. Particle Pollution (PM2.5) is measuring at 52 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the Columbus area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Sunday, November 8: A temperature inversion will trap pollutants near the surface early in the day as a ridge of high pressure aloft passes over the state. In addition, light to moderate southwesterly winds will carry regional pollutants into central Ohio, leading to low-Moderate AQI levels. Monday, November 9: Light to moderate northwesterly winds will aid dispersion behind a departing cold front. Therefore, AQI levels will improve to high-Good. Tuesday, a morning temperature inversion will confine pollutants near the surface early in the day. In addition, southwesterly to westerly winds will carry regional pollutants into central Ohio, resulting in low-Moderate AQI levels. Wednesday, calm to light southerly winds will hinder dispersion and transport moisture and pollutants into the Columbus region ahead of a developing low-pressure system. In addition, warming temperatures aloft will limit mixing. Therefore, AQI levels will increase to mid-Moderate. Thursday and Friday, gusty northwesterly winds will disperse pollutants each day, while a strong trough of low pressure aloft enhances atmospheric mixing. As a result, AQI levels will be Good on both days.
| 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.