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  3. Colorado

Colorado

United States

2026-09-16 09:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
55
PM2.5
μg/m³
3.4
PM10
μg/m³
19.3
NO2
μg/m³
6.4
CO
μg/m³
208.3
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
6℃
82%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Adams County
AQI 36
Alamosa County
AQI 14
Arapahoe County
AQI 35
Archuleta County
AQI 17
Baca County
AQI 16
Bent County
AQI 16
Boulder County
AQI 26
Broomfield County
AQI 35
Chaffee County
AQI 19
Cheyenne County
AQI 17
Clear Creek County
AQI 26
Conejos County
AQI 14
Costilla County
AQI 21
Crowley County
AQI 18
Custer County
AQI 28
Delta County
AQI 17
Denver County
AQI 35
Dolores County
AQI 14
Douglas County
AQI 35
Eagle County
AQI 13
El Paso County
AQI 30
Elbert County
AQI 17
Fremont County
AQI 25
Garfield County
AQI 16
Gilpin County
AQI 33
Grand County
AQI 22
Gunnison County
AQI 11
Hinsdale County
AQI 12
Huerfano County
AQI 32
Jackson County
AQI 17
Jefferson County
AQI 33
La Plata County
AQI 20
Lake County
AQI 11
Larimer County
AQI 27
Las Animas County
AQI 20
Lincoln County
AQI 16
Logan County
AQI 21
Mesa County
AQI 29
Mineral County
AQI 30
Moffat County
AQI 14
Montezuma County
AQI 28
Montrose County
AQI 17
Morgan County
AQI 20
Otero County
AQI 18
Ouray County
AQI 10
Park County
AQI 38
Phillips County
AQI 21
Pitkin County
AQI 18
Prowers County
AQI 29
Pueblo County
AQI 24
Rio Blanco County
AQI 14
Rio Grande County
AQI 14
Routt County
AQI 7
Saguache County
AQI 26
San Juan County
AQI 10
San Miguel County
AQI 10
Sedgwick County
AQI 18
Summit County
AQI 19
Teller County
AQI 26
Washington County
AQI 20
Weld County
AQI 31
Yuma County
AQI 22
Data Sources
http://www.airnow.gov/

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