USA Air Pollution Statistics
Top 10 Best and Worst Air Quality in USA

Share: aqicn.org/statistics/usa/

The statistics below corresponds to the real-time readings
last updated on Wed Aug 06 2025 03:16:15 GMT+0000 (Coordinated Universal Time).

Worst Air Quality Stations
Woodin Ave, Chelan, Washington, USA
on 2025-07-31 03:00:00
171
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Waukesha-cleveland Ave., Wisconsin, USA
on 2025-08-06 12:00:00
151
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
West Duluth, Minnesota, USA
on 2025-08-06 11:00:00
145
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Potawatomi, Wisconsin, USA
on 2025-08-06 12:00:00
143
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Bad River, Wisconsin, USA
on 2025-08-06 12:00:00
138
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Hammond-167th St, Indiana, USA
on 2025-08-06 10:00:00
135
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Rochester Near Rd, New York, USA
on 2025-08-06 10:00:00
134
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Albany County HD, New York, USA
on 2025-08-06 10:00:00
131
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Stillwater, New York, USA
on 2025-08-06 10:00:00
131
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Swiftwater, Pennsylvania, USA
on 2025-08-06 09:00:00
130
06 AM12 PM06 PMMon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM

Best Air Quality Stations
Taos Fire Station, New Mexico, USA
on 2025-08-06 09:00:00
1
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Isla Blanca Park, Harlingen, Texas
on 2025-08-06 10:00:00
5
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Floyd Dryden, Alaska
on 2025-08-06 10:00:00
9
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Salmon, Idaho, USA
on 2025-08-06 08:00:00
9
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Douglas Red Cross, Arizona, USA
on 2025-08-06 11:00:00
10
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Castle H, North Carolina, USA
on 2025-08-06 11:00:00
11
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Bethel, Alaska
on 2025-08-06 10:00:00
12
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Ketchum, Idaho, USA
on 2025-08-06 10:00:00
13
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Prineville, Oregon, USA
on 2025-08-06 10:00:00
13
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM
Honolulu, Hawaii, USA
on 2025-08-06 11:00:00
15
Mon 0406 AM12 PM06 PMTue 0506 AM12 PM06 PM


Statistics for other regions

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Air Quality Rankings

About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQI Air Pollution Level Health Implications Cautionary Statement (for PM2.5)
0 - 50 Good Air quality is considered satisfactory, and air pollution poses little or no risk None
51 -100 Moderate Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution. Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150 Unhealthy for Sensitive Groups Members of sensitive groups may experience health effects. The general public is not likely to be affected. Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200 Unhealthy Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300 Very Unhealthy Health warnings of emergency conditions. The entire population is more likely to be affected. Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+ Hazardous Health alert: everyone may experience more serious health effects Everyone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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