Ohio Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in Ohio
Check the air quality level of thecities in Ohio
Ohio
Ohio's Cities
Real-time Air Pollution Level
United States's Metro Cities
Air Quality Index
Most Polluted Cities 2026
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Appleton, Wisconsin
Severe
14xabove Standard
2.
Green Bay, Wisconsin
Severe
13xabove Standard
3.
Baraboo, Wisconsin
Severe
10xabove Standard
4.
Madison, Wisconsin
Severe
10xabove Standard
5.
Rhinelander, Wisconsin
Unhealthy
9xabove Standard
6.
Waukesha, Wisconsin
Unhealthy
9xabove Standard
7.
Rockford, Illinois
Unhealthy
9xabove Standard
8.
Shorewood, Wisconsin
Unhealthy
7xabove Standard
9.
Milwaukee, Wisconsin
Unhealthy
6xabove Standard
10.
Michigan City, Indiana
Unhealthy
6xabove Standard
Last Updated: 19 Jul 2026, 10:59 AM
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