Colorado
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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 01/08/26

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.

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 ADB Moderate 60 Particulate < 10 micrometers 73 µg/m3 24-hour 5 AM
Ft. Collins - Greeley
[expand +]		 PMS Moderate 57 Particulate < 2.5 micrometers 12 µg/m3 24-hour 4 AM
Colorado Springs
[expand +]		 MAN Good 39 Ozone 42 PPB 8-hour 5 AM
Grand Junction
[expand +]		 GJPB Good 38 Particulate < 2.5 micrometers 6 µg/m3 24-hour 2 AM
Pueblo
[expand +]		 PWES Good 40 Ozone 43 PPB 8-hour 9 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 27 Ozone 29 PPB 8-hour 5 PM
Four Corners
[expand +]		 PAG Good 42 Particulate < 2.5 micrometers 7 µg/m3 24-hour 1 AM
Steamboat Springs
[expand +]		 SSMB Good 34 Particulate < 2.5 micrometers 6 µg/m3 24-hour 1 AM
Aspen
[expand +]		 ASPN Good 37 Ozone 40 PPB 8-hour 5 PM
Other
[expand +]		 ALA Good 37 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)
No valid VSI calculations found (12pm - 4pm)

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