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 01/07/26

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
[expand +]		 ADB Moderate 58 Particulate < 10 micrometers 69 µg/m3 24-hour 12 AM
Ft. Collins - Greeley
[expand +]		 PMS Moderate 54 Particulate < 2.5 micrometers 10 µg/m3 24-hour 11 PM
Colorado Springs
[expand +]		 MAN Good 44 Ozone 47 PPB 8-hour 12 PM
Grand Junction
[expand +]		 GJPB Good 38 Particulate < 2.5 micrometers 6 µg/m3 24-hour 4 PM
Colorado River Valley
[expand +]		 RIFL Good 19 Particulate < 2.5 micrometers 3 µg/m3 24-hour 7 PM
Four Corners
[expand +]		 PAG Good 42 Particulate < 2.5 micrometers 7 µg/m3 24-hour 12 AM
Other
[expand +]		 ALA Good 48 Particulate < 2.5 micrometers 8 µg/m3 24-hour 5 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Good 49 0.049 0.037 12 PM

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