North America Air Pollution Statistics
Top 10 Best and Worst Air Quality in North America

Share: aqicn.org/statistics/north-america/

The statistics below corresponds to the real-time readings
last updated on .

Worst Air Quality Stations
Otay Mesa - Donovan Correctional Facility, San Diego, California
on 2025-02-03 22:00:00
163
graph 0
Floyd Dryden, Alaska
on 2025-02-03 22:00:00
157
graph 1
S. Catarina, Nuevo Leon, Mexico
on 2025-02-03 20:00:00
144
graph 2
Garden, Anchorage, Alaska
on 2025-02-03 22:00:00
134
graph 3
Durango, Durango, Mexico
on 2025-02-01 15:00:00
118
graph 4
FNSB NCORE, Alaska
on 2025-02-03 22:00:00
109
graph 5
No. Bham, Alabama, USA
on 2025-02-03 22:00:00
102
graph 6
Glassport High Street, Allegheny, Pennsylvania, USA
on 2025-02-03 21:00:00
97
graph 7
Market Blvd, Chehalis, Washington, USA
on 2025-01-29 23:00:00
91
graph 8
Grand Forks City Hall, British Comlumbia, Canada
on 2025-02-03 22:00:00
91
graph 9

Best Air Quality Stations
Valemount Firehall, British Comlumbia, Canada
on 2025-02-03 22:00:00
6
graph 0
Brandon, Manitoba, Canada
on 2025-02-03 20:00:00
8
graph 1
Holman Rd, New Mexico, USA
on 2025-02-03 21:00:00
8
graph 2
Meadow Lake, Saskatchewan, Canada
on 2025-02-03 20:00:00
9
graph 3
Clavet, Saskatchewan, Canada
on 2025-02-03 20:00:00
10
graph 4
Flin Flon, Manitoba, Canada
on 2025-02-03 20:00:00
11
graph 5
Lakeview, Oregon, USA
on 2025-02-03 22:00:00
12
graph 6
Grand Falls-Windsor, NewFoundland, Canada
on 2025-02-03 19:30:00
15
graph 7
Pictou, Nova Scotia, Canada
on 2025-02-03 22:00:00
15
graph 8
Corner Brook, NewFoundland, Canada
on 2025-01-31 00:30:00
16
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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