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  3. Colorado

Colorado

United States

2026-09-19 14:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
46.2
PM2.5
μg/m³
3.2
PM10
μg/m³
13.5
NO2
μg/m³
14.2
CO
μg/m³
208.3
SO2
μg/m³
2.4
Weather
  • ℃
  • ℉
10℃
59%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 26
Alamosa County
AQI 23
Arapahoe County
AQI 25
Archuleta County
AQI 27
Baca County
AQI 24
Bent County
AQI 22
Boulder County
AQI 25
Broomfield County
AQI 28
Chaffee County
AQI 7
Cheyenne County
AQI 19
Clear Creek County
AQI 17
Conejos County
AQI 23
Costilla County
AQI 12
Crowley County
AQI 21
Custer County
AQI 11
Delta County
AQI 15
Denver County
AQI 25
Dolores County
AQI 6
Douglas County
AQI 25
Eagle County
AQI 6
El Paso County
AQI 27
Elbert County
AQI 25
Fremont County
AQI 13
Garfield County
AQI 22
Gilpin County
AQI 28
Grand County
AQI 10
Gunnison County
AQI 21
Hinsdale County
AQI 9
Huerfano County
AQI 8
Jackson County
AQI 10
Jefferson County
AQI 22
La Plata County
AQI 23
Lake County
AQI 5
Larimer County
AQI 23
Las Animas County
AQI 10
Lincoln County
AQI 20
Logan County
AQI 9
Mesa County
AQI 26
Mineral County
AQI 6
Moffat County
AQI 14
Montezuma County
AQI 25
Montrose County
AQI 15
Morgan County
AQI 38
Otero County
AQI 23
Ouray County
AQI 15
Park County
AQI 10
Phillips County
AQI 5
Pitkin County
AQI 18
Prowers County
AQI 16
Pueblo County
AQI 24
Rio Blanco County
AQI 14
Rio Grande County
AQI 23
Routt County
AQI 7
Saguache County
AQI 11
San Juan County
AQI 15
San Miguel County
AQI 15
Sedgwick County
AQI 5
Summit County
AQI 11
Teller County
AQI 22
Washington County
AQI 19
Weld County
AQI 22
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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