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Banner with Colorado and CDPHE logos on left with text on right reading Colorado Air Quality with Department of Public Health and Environment on the next line.

Detailed Air Quality Summary for 02/26/26 (Today)

Air Quality Forecasts and Advisories & Colorado Smoke Outlook
Learn more about monitoring sites: site descriptions and
real-time monitoring map

All data are collected real-time and have not been corrected nor validated.		 Current Air Quality

Current Hour:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 CHAT Moderate 56 Particulate < 10 micrometers 66 µg/m3 24-hour 6 PM
Ft. Collins - Greeley
[expand +]		 TIM Moderate 58 Ozone 57 PPB 8-hour 6 PM
Colorado Springs
[expand +]		 MAN Good 45 Ozone 49 PPB 8-hour 6 PM
Grand Junction
[expand +]		 PAL Good 44 Ozone 47 PPB 8-hour 6 PM
Pueblo
[expand +]		 PWES Good 44 Ozone 48 PPB 8-hour 6 PM
Colorado River Valley
[expand +]		 RIFL Unhealthy 153 Particulate < 2.5 micrometers 58 µg/m3 24-hour 6 PM
Four Corners
[expand +]		 CTZ Good 40 Ozone 43 PPB 8-hour 6 PM
Steamboat Springs
[expand +]		 SSMB Good 14 Particulate < 2.5 micrometers 2 µg/m3 24-hour 6 PM
Aspen
[expand +]		 ASPN Good 36 Ozone 39 PPB 8-hour 6 PM
Other
[expand +]		 ALA Good 27 Particulate < 10 micrometers 29 µg/m3 24-hour 6 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 WBY Moderate 83 Particulate < 10 micrometers 119 µg/m3 24-hour 3 AM
Ft. Collins - Greeley
[expand +]		 TIM Moderate 58 Ozone 57 PPB 8-hour 5 PM
Colorado Springs
[expand +]		 MAN Good 45 Ozone 49 PPB 8-hour 6 PM
Grand Junction
[expand +]		 PAL Good 44 Ozone 47 PPB 8-hour 6 PM
Pueblo
[expand +]		 PWES Good 44 Ozone 48 PPB 8-hour 6 PM
Colorado River Valley
[expand +]		 RIFL Unhealthy 153 Particulate < 2.5 micrometers 58 µg/m3 24-hour 6 PM
Four Corners
[expand +]		 CTZ Good 40 Ozone 43 PPB 8-hour 6 PM
Steamboat Springs
[expand +]		 SSMB Good 14 Particulate < 2.5 micrometers 2 µg/m3 24-hour 5 PM
Aspen
[expand +]		 ASPN Good 37 Ozone 40 PPB 8-hour 5 PM
Other
[expand +]		 DELT Good 36 Particulate < 2.5 micrometers 6 µg/m3 24-hour 1 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Good 24 0.030 0.028 12 PM

* All data are reported in Mountain Standard Time (MST). During daylight savings time add one hour to the reported hour.

AQI health statements
Site information and abbreviations