Real-time air quality rankings for 32 cities across United States, updated hourly. Browse the cleanest cities in United States ranked by AQI.
Best Air Quality in United States
The city with the best air quality in United States is Honolulu (AQI 26), followed by Lincoln (AQI 31), Boston (AQI 33), Sacramento (AQI 33). Currently, 26 out of 32 monitored cities in United States report Good air quality with an AQI below 50.
Honolulu
United States
AQI
Lincoln
United States
AQI
Boston
United States
AQI
Sacramento
United States
AQI
Kansas City
United States
AQI
Raleigh
United States
AQI
Saint Paul
United States
AQI
New York City
United States
AQI
Aurora
United States
AQI
Denver
United States
AQI
Indianapolis
United States
AQI
Lexington-Fayette
United States
AQI
St. Petersburg
United States
AQI
Washington
United States
AQI
Columbus
United States
AQI
Nashville
United States
AQI
Ironville
United States
AQI
Meads
United States
AQI
Greensboro
United States
AQI
Oklahoma City
United States
AQI
Plano
United States
AQI
Atlanta
United States
AQI
Austin
United States
AQI
Phoenix
United States
AQI
Mesa
United States
AQI
Henderson
United States
AQI
Arlington
United States
AQI
Long Beach
United States
AQI
Irvine
United States
AQI
Chandler
United States
AQI
Chula Vista
United States
AQI
Anaheim
United States
AQI
Understanding Air Quality Index
Good
Air quality is satisfactory, and air pollution poses little or no risk.
Moderate
Air quality is acceptable. However, there may be a risk for some people.
Unhealthy for Sensitive Groups
Members of sensitive groups may experience health effects.
Unhealthy
Everyone may begin to experience health effects.
Very Unhealthy
Health alert: everyone may experience more serious health effects.
Hazardous
Health warnings of emergency conditions. The entire population is likely to be affected.
The Air Quality Index (AQI) is a scale from 0 to 500 that measures air pollution levels. Poor air quality can cause respiratory issues, cardiovascular problems, and other health concerns. Rankings are updated hourly to help you stay informed.
Source: US EPA Air Quality Index
Last updated: 23 Mar 22:09
