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  3. Colorado

Colorado

United States

2026-09-15 00:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
77.1
PM2.5
μg/m³
3.6
PM10
μg/m³
18.7
NO2
μg/m³
12.2
CO
μg/m³
354.2
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
8℃
70%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 33
Alamosa County
AQI 18
Arapahoe County
AQI 35
Archuleta County
AQI 30
Baca County
AQI 8
Bent County
AQI 10
Boulder County
AQI 35
Broomfield County
AQI 25
Chaffee County
AQI 5
Cheyenne County
AQI 10
Clear Creek County
AQI 35
Conejos County
AQI 18
Costilla County
AQI 22
Crowley County
AQI 7
Custer County
AQI 9
Delta County
AQI 23
Denver County
AQI 26
Dolores County
AQI 13
Douglas County
AQI 34
Eagle County
AQI 6
El Paso County
AQI 53
Elbert County
AQI 25
Fremont County
AQI 26
Garfield County
AQI 27
Gilpin County
AQI 36
Grand County
AQI 6
Gunnison County
AQI 34
Hinsdale County
AQI 10
Huerfano County
AQI 9
Jackson County
AQI 10
Jefferson County
AQI 39
La Plata County
AQI 34
Lake County
AQI 6
Larimer County
AQI 35
Las Animas County
AQI 4
Lincoln County
AQI 9
Logan County
AQI 14
Mesa County
AQI 38
Mineral County
AQI 10
Moffat County
AQI 19
Montezuma County
AQI 35
Montrose County
AQI 23
Morgan County
AQI 12
Otero County
AQI 6
Ouray County
AQI 18
Park County
AQI 6
Phillips County
AQI 16
Pitkin County
AQI 26
Prowers County
AQI 26
Pueblo County
AQI 38
Rio Blanco County
AQI 20
Rio Grande County
AQI 18
Routt County
AQI 30
Saguache County
AQI 20
San Juan County
AQI 18
San Miguel County
AQI 18
Sedgwick County
AQI 21
Summit County
AQI 7
Teller County
AQI 53
Washington County
AQI 11
Weld County
AQI 32
Yuma County
AQI 13
Data Sources
http://www.airnow.gov/

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