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.
Hartford, Connecticut
Unhealthy
5xabove Standard
2.
Bridgeport, Connecticut
Unhealthy
5xabove Standard
3.
New Haven, Connecticut
Unhealthy
5xabove Standard
4.
Danbury, Connecticut
Unhealthy
5xabove Standard
5.
Bennington, Vermont
Unhealthy
5xabove Standard
6.
Waterbury, Connecticut
Unhealthy
5xabove Standard
7.
Gainesville, Virginia
Unhealthy
5xabove Standard
8.
Ashburn, Virginia
Unhealthy
5xabove Standard
9.
Ware, Massachusetts
Unhealthy
5xabove Standard
10.
East Hartford, Connecticut
Unhealthy
5xabove Standard
Last Updated: 18 Jul 2026, 07:11 PM
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