The highest AQ index in Ohio (as of 18:00 EST) is currently the Cleveland-Akron-Lorain area. Particle Pollution (PM2.5) is measuring at 55 (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.
Monday, January 26: Moisture associated with light snowfall will enhance particle production in central Ohio. However, moderate westerly winds behind a departing low pressure system will gradually disperse pollutants, leading to low-Moderate AQI levels. Tuesday, January 27: As the next cold front moves across the Buckeye State, southwesterly morning winds will gradually transport regional pollutants into central Ohio. However, winds will shift to westerly in the afternoon, increasing dispersion and keeping AQI levels low-Moderate. Wednesday, a morning temperature inversion will confine pollutants at ground level. Furthermore, lighter southwesterly winds will limit dispersion as a weak surface ridge of high pressure develops to the southwest. Therefore, AQI levels will remain low-Moderate. Thursday and Friday, a strong surface high pressure system will develop over the northern Plains, generating light northwesterly winds across central Ohio. These winds will gradually disperse pollutants and usher clean, very cold air into the region. Although pollutant carryover from Wednesday will keep AQI levels low-Moderate on Thursday, AQI levels will lower to high-Good on Friday. Saturday, a low pressure system moving northward along the East Coast will generate periods of moderate northerly winds in central Ohio. These winds will effectively disperse pollutants and keep the atmosphere well mixed, yielding continued 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 |
Last Updated 12 minutes ago
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.