United States Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in United States
Check the air quality level of thecities in United States
United States
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.
Tracy, California
Poor
3xabove Standard
2.
Merced, California
Poor
2xabove Standard
3.
Fresno, California
Poor
2xabove Standard
4.
Modesto, California
Poor
2xabove Standard
5.
Mendota, California
Poor
2xabove Standard
6.
Clovis, California
Poor
3xabove Standard
7.
Yosemite Lakes, California
Poor
2xabove Standard
8.
Madera, California
Poor
2xabove Standard
9.
Gilroy, California
Poor
2xabove Standard
10.
Turlock, California
Poor
2xabove Standard
Last Updated: 26 Sept 2026, 12:43 PM
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