Toggle navigation
Places
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
English
Français
Deutsch
日本語
한국어
简体中文
繁體中文
North America
United States
Colorado
AQI (China)
AQC (Australia)
AQHI (Canada)
AQI (China)
AQI (Netherlands)
AQI (US)
CAQI (Europe)
AQI (UK)
AQI (India)
Colorado
United States
2026-09-16 08:00
AQI (China)
Excellent
Pollutants
|
Pollens
PM10
μg/m³
19.3
O3
μg/m³
55.2
PM2.5
μg/m³
3.4
NO2
μg/m³
6.4
CO
μg/m³
208.3
SO2
μg/m³
0.9
Pollen
7.2
Weather
℃
℃
℉
6℃
85%
5 kph
0 of 11
Historical Data
Hourly
Hourly
Daily
AQI (China)
AQI (China)
Pollen
PM10
O3
PM2.5
NO2
CO
SO2
Places included
Adams County
AQI 37
Alamosa County
AQI 7
Arapahoe County
AQI 37
Archuleta County
AQI 13
Baca County
AQI 5
Bent County
AQI 5
Boulder County
AQI 28
Broomfield County
AQI 37
Chaffee County
AQI 5
Cheyenne County
AQI 5
Clear Creek County
AQI 19
Conejos County
AQI 7
Costilla County
AQI 6
Crowley County
AQI 6
Custer County
AQI 11
Delta County
AQI 8
Denver County
AQI 37
Dolores County
AQI 5
Douglas County
AQI 37
Eagle County
AQI 4
El Paso County
AQI 22
Elbert County
AQI 13
Fremont County
AQI 21
Garfield County
AQI 12
Gilpin County
AQI 28
Grand County
AQI 6
Gunnison County
AQI 8
Hinsdale County
AQI 6
Huerfano County
AQI 9
Jackson County
AQI 5
Jefferson County
AQI 36
La Plata County
AQI 15
Lake County
AQI 3
Larimer County
AQI 19
Las Animas County
AQI 6
Lincoln County
AQI 5
Logan County
AQI 6
Mesa County
AQI 21
Mineral County
AQI 8
Moffat County
AQI 5
Montezuma County
AQI 21
Montrose County
AQI 8
Morgan County
AQI 5
Otero County
AQI 6
Ouray County
AQI 7
Park County
AQI 10
Phillips County
AQI 6
Pitkin County
AQI 13
Prowers County
AQI 24
Pueblo County
AQI 20
Rio Blanco County
AQI 4
Rio Grande County
AQI 7
Routt County
AQI 3
Saguache County
AQI 7
San Juan County
AQI 7
San Miguel County
AQI 7
Sedgwick County
AQI 5
Summit County
AQI 6
Teller County
AQI 7
Washington County
AQI 6
Weld County
AQI 33
Yuma County
AQI 6
Data Sources
http://www.airnow.gov/
Get the App
Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.
iPhone, iPad
Android
Scan QR Code to Download App
iOS
Google Play
Download APK
Cities Nearby
Keystone
AQI 11
Georgetown
AQI 18
Breckenridge
AQI 6
Silverthorne
AQI 5
Frisco
AQI 5
Wildernest
AQI 5
Bailey
AQI 19
Idaho Springs
AQI 22
Copper Mountain
AQI 4
Black Hawk
AQI 24
Winter Park
AQI 11
Air Matters © 2026