Colorado
Translate
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 10/26/26 (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 +]		 BHWK Good 34 Ozone 37 PPB 8-hour 7 PM
Ft. Collins - Greeley
[expand +]		 MFP Good 14 Ozone 15 PPB 8-hour 7 PM
Colorado Springs
[expand +]		 ACAD Good 40 Ozone 43 PPB 8-hour 7 PM
Grand Junction
[expand +]		 PAL Good 37 Ozone 40 PPB 8-hour 7 PM
Pueblo
[expand +]		 PWES Good 34 Ozone 37 PPB 8-hour 7 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 34 Ozone 37 PPB 8-hour 7 PM
Four Corners
[expand +]		 CTZ Good 39 Ozone 42 PPB 8-hour 7 PM
Steamboat Springs
[expand +]		 SSMB Good 8 Particulate < 2.5 micrometers 1 µg/m3 24-hour 7 PM
Aspen
[expand +]		 ASPN2 Good 9 Particulate < 2.5 micrometers 1 µg/m3 24-hour 7 PM
Other
[expand +]		 DELT Good 18 Particulate < 2.5 micrometers 3 µg/m3 24-hour 7 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 +]		 CHAT Good 40 Particulate < 2.5 micrometers 7 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
[expand +]		 FTCF Good 24 Particulate < 2.5 micrometers 4 µg/m3 24-hour 1 AM
Colorado Springs
[expand +]		 CCOL Good 48 Particulate < 2.5 micrometers 8 µg/m3 24-hour 2 AM
Grand Junction
[expand +]		 PAL Good 37 Ozone 40 PPB 8-hour 7 PM
Pueblo
[expand +]		 PWES Good 36 Ozone 39 PPB 8-hour 6 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 36 Ozone 39 PPB 8-hour 6 PM
Four Corners
[expand +]		 CTZ Good 40 Ozone 43 PPB 8-hour 6 PM
Steamboat Springs
[expand +]		 SSMB Good 11 Particulate < 2.5 micrometers 2 µg/m3 24-hour 1 AM
Aspen
[expand +]		 ASPN2 Good 9 Particulate < 2.5 micrometers 1 µg/m3 24-hour 12 PM
Other
[expand +]		 LMB Good 23 Particulate < 2.5 micrometers 4 µg/m3 24-hour 12 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Poor 102 0.077 0.086 3 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