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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 01/12/26 (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 +]		 LNGM Moderate 53 Particulate < 2.5 micrometers 10 µg/m3 24-hour 6 PM
Ft. Collins - Greeley
[expand +]		 GREH Moderate 60 Particulate < 2.5 micrometers 14 µg/m3 24-hour 6 PM
Colorado Springs
[expand +]		 MAN Good 36 Ozone 39 PPB 8-hour 6 PM
Grand Junction
[expand +]		 GJPB Moderate 51 Particulate < 2.5 micrometers 9 µg/m3 24-hour 6 PM
Pueblo
[expand +]		 PWES Good 38 Ozone 41 PPB 8-hour 6 PM
Colorado River Valley
[expand +]		 RIFL Good 27 Particulate < 2.5 micrometers 4 µg/m3 24-hour 6 PM
Four Corners
[expand +]		 PAG Good 33 Particulate < 2.5 micrometers 6 µg/m3 24-hour 6 PM
Steamboat Springs
[expand +]		 SSMB Good 39 Particulate < 2.5 micrometers 7 µg/m3 24-hour 6 PM
Aspen
[expand +]		 ASPN Good 32 Ozone 35 PPB 8-hour 6 PM
Other
[expand +]		 ALA Moderate 56 Particulate < 2.5 micrometers 11 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 +]		 LNGM Moderate 53 Particulate < 2.5 micrometers 10 µg/m3 24-hour 6 PM
Ft. Collins - Greeley
[expand +]		 GREH Moderate 60 Particulate < 2.5 micrometers 14 µg/m3 24-hour 6 PM
Colorado Springs
[expand +]		 MAN Good 43 Ozone 46 PPB 8-hour 4 AM
Grand Junction
[expand +]		 GJPB Moderate 52 Particulate < 2.5 micrometers 9 µg/m3 24-hour 1 PM
Pueblo
[expand +]		 PWES Good 40 Ozone 43 PPB 8-hour 4 PM
Colorado River Valley
[expand +]		 RIFL Good 32 Particulate < 2.5 micrometers 5 µg/m3 24-hour 8 AM
Four Corners
[expand +]		 PAG Good 37 Particulate < 2.5 micrometers 6 µg/m3 24-hour 4 AM
Steamboat Springs
[expand +]		 SSMB Good 39 Particulate < 2.5 micrometers 7 µg/m3 24-hour 5 PM
Aspen
[expand +]		 ASPN Good 38 Ozone 41 PPB 8-hour 7 AM
Other
[expand +]		 ALA Moderate 56 Particulate < 2.5 micrometers 11 µg/m3 24-hour 11 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Good 40 0.042 0.038 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