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 .

Worst Air Quality Stations
Bethel, Alaska
on 2025-10-27 11:00:00
154
graph 0
Hamilton Acres Baptist School, Alaska
on 2025-10-27 11:00:00
139
graph 1
El Paso Chamizal, El Paso, Texas
on 2025-10-27 11:00:00
134
graph 2
Fargo NW, North Dakota, USA
on 2025-10-27 12:00:00
97
graph 3
Isla Blanca Park, Harlingen, Texas
on 2025-10-27 11:00:00
76
graph 4
CAMP, Colorado, USA
on 2025-10-27 12:00:00
74
graph 5
Garden, Anchorage, Alaska
on 2025-10-27 11:00:00
74
graph 6
Glendora-Laurel, Los Angeles
on 2025-10-27 11:00:00
72
graph 7
World Trade Bridge, Laredo, Texas
on 2025-10-27 11:00:00
70
graph 8
Floyd Dryden, Alaska
on 2025-10-27 11:00:00
65
graph 9

Best Air Quality Stations
Ketchum, Idaho, USA
on 2025-10-27 11:00:00
6
graph 0
Acadia NP - McFarland, Maine, USA
on 2025-10-27 12:00:00
6
graph 1
Seney, Michigan, USA
on 2025-10-27 12:00:00
8
graph 2
Pierre, South Dakota, USA
on 2025-10-27 11:00:00
8
graph 3
Hermiston, Oregon, USA
on 2025-10-27 11:00:00
11
graph 4
Grand Portage, Minnesota, USA
on 2025-10-27 12:00:00
12
graph 5
Madawaska PSB, Maine, USA
on 2025-10-27 12:00:00
12
graph 6
Salmon, Idaho, USA
on 2025-10-27 11:00:00
13
graph 7
Herman L. Horn Elementary School, Roanoke, USA
on 2025-10-27 12:00:00
15
graph 8
Loomis, Custer, Washington, USA
on 2025-10-27 13:00:00
15
graph 9


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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