CBSA 10100Partial year
Aberdeen, SD
27median AQI
typical day
typical day
- 90th percentile AQI
- 56
- Maximum AQI
- 115
- Days with AQI above 100
- 6
Observed: 360 of 365 days
DATA & SOURCES · EPA AIRDATA
Air quality.
Explore the data behind it.
Compare U.S. metro and micro areas using EPA air quality data. See where each number comes from, when it was measured, and how complete the observations are.
2025observation year
498areas covered
298with a full year of observations
Find an area
Results: 498CBSA 10140Full year
Aberdeen, WA
22median AQI
typical day
typical day
- 90th percentile AQI
- 41
- Maximum AQI
- 76
- Days with AQI above 100
- 0
Observed: 365 of 365 days
CBSA 10300Full year
Adrian, MI
41median AQI
typical day
typical day
- 90th percentile AQI
- 66
- Maximum AQI
- 147
- Days with AQI above 100
- 7
Observed: 365 of 365 days
CBSA 10420Full year
Akron, OH
45median AQI
typical day
typical day
- 90th percentile AQI
- 71
- Maximum AQI
- 150
- Days with AQI above 100
- 3
Observed: 365 of 365 days
CBSA 10580Full year
Albany-Schenectady-Troy, NY
41median AQI
typical day
typical day
- 90th percentile AQI
- 64
- Maximum AQI
- 136
- Days with AQI above 100
- 5
Observed: 365 of 365 days
CBSA 10500Full year
Albany, GA
46median AQI
typical day
typical day
- 90th percentile AQI
- 64
- Maximum AQI
- 115
- Days with AQI above 100
- 1
Observed: 365 of 365 days
CBSA 10540Full year
Albany, OR
27median AQI
typical day
typical day
- 90th percentile AQI
- 57
- Maximum AQI
- 122
- Days with AQI above 100
- 1
Observed: 365 of 365 days
CBSA 10740Full year
Albuquerque, NM
61median AQI
typical day
typical day
- 90th percentile AQI
- 90
- Maximum AQI
- 204
- Days with AQI above 100
- 21
Observed: 365 of 365 days
CBSA 10780Partial year
Alexandria, LA
37median AQI
typical day
typical day
- 90th percentile AQI
- 57
- Maximum AQI
- 67
- Days with AQI above 100
- 0
Observed: 118 of 365 days
CBSA 10900Full year
Allentown-Bethlehem-Easton, PA-NJ
42median AQI
typical day
typical day
- 90th percentile AQI
- 67
- Maximum AQI
- 122
- Days with AQI above 100
- 3
Observed: 365 of 365 days
CBSA 11020Partial year
Altoona, PA
40median AQI
typical day
typical day
- 90th percentile AQI
- 60
- Maximum AQI
- 115
- Days with AQI above 100
- 1
Observed: 363 of 365 days
CBSA 11100Full year
Amarillo, TX
42median AQI
typical day
typical day
- 90th percentile AQI
- 64
- Maximum AQI
- 97
- Days with AQI above 100
- 0
Observed: 365 of 365 days
How to read the numbers
Median AQI
The middle of the observed daily Air Quality Index (AQI) values. Lower AQI values indicate cleaner air.
90th percentile
A measure of higher-pollution days: about 90% of observed daily AQI values are at or below this level.
Days with AQI > 100
Includes days rated unhealthy for sensitive groups or worse. Compare this count alongside the number of days observed.