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  3. Colorado

Colorado

United States

2026-09-29 03:00
AQI (India)
Satisfactory
Pollutants|Pollens
O3
μg/m³
65.1
CO
μg/m³
250
NO2
μg/m³
9.1
PM10
μg/m³
9.8
PM2.5
μg/m³
2.4
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
4℃
99%
1 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • CO
  • NO2
  • PM10
  • PM2.5
  • SO2
Places included
Adams County
AQI 78
Alamosa County
AQI 1
Arapahoe County
AQI 67
Archuleta County
AQI 65
Baca County
AQI 8
Bent County
AQI 12
Boulder County
AQI 84
Broomfield County
AQI 19
Chaffee County
AQI 3
Cheyenne County
AQI 8
Clear Creek County
AQI 64
Conejos County
AQI 1
Costilla County
AQI 6
Crowley County
AQI 6
Custer County
AQI 6
Delta County
AQI 7
Denver County
AQI 69
Dolores County
AQI 7
Douglas County
AQI 75
Eagle County
AQI 6
El Paso County
AQI 55
Elbert County
AQI 43
Fremont County
AQI 2
Garfield County
AQI 48
Gilpin County
AQI 58
Grand County
AQI 3
Gunnison County
AQI 56
Hinsdale County
AQI 4
Huerfano County
AQI 6
Jackson County
AQI 5
Jefferson County
AQI 78
La Plata County
AQI 67
Lake County
AQI 2
Larimer County
AQI 77
Las Animas County
AQI 6
Lincoln County
AQI 7
Logan County
AQI 7
Mesa County
AQI 60
Mineral County
AQI 3
Moffat County
AQI 8
Montezuma County
AQI 67
Montrose County
AQI 7
Morgan County
AQI 8
Otero County
AQI 9
Ouray County
AQI 4
Park County
AQI 6
Phillips County
AQI 9
Pitkin County
AQI 54
Prowers County
AQI 19
Pueblo County
AQI 60
Rio Blanco County
AQI 11
Rio Grande County
AQI 1
Routt County
AQI 8
Saguache County
AQI 4
San Juan County
AQI 4
San Miguel County
AQI 4
Sedgwick County
AQI 8
Summit County
AQI 3
Teller County
AQI 8
Washington County
AQI 8
Weld County
AQI 63
Yuma County
AQI 9
Data Sources
http://www.airnow.gov/

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