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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 11/12/26 (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 +]		 ADB Good 49 Particulate < 10 micrometers 53 µg/m3 24-hour 8 PM
Ft. Collins - Greeley
[expand +]		 PMS Good 43 Particulate < 2.5 micrometers 7 µg/m3 24-hour 8 PM
Colorado Springs
[expand +]		 MAN Good 43 Ozone 46 PPB 8-hour 8 PM
Grand Junction
[expand +]		 PAL Good 35 Ozone 38 PPB 8-hour 8 PM
Pueblo
[expand +]		 PWES Good 41 Ozone 44 PPB 8-hour 8 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 25 Ozone 27 PPB 8-hour 8 PM
Four Corners
[expand +]		 CTZ Good 28 Ozone 30 PPB 8-hour 8 PM
Steamboat Springs
[expand +]		 SSMB Good 17 Particulate < 2.5 micrometers 3 µg/m3 24-hour 8 PM
Aspen
[expand +]		 ASPN2 Good 28 Particulate < 10 micrometers 30 µg/m3 24-hour 8 PM
Other
[expand +]		 ALA Good 41 Particulate < 2.5 micrometers 7 µg/m3 24-hour 8 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 +]		 ADB Moderate 62 Particulate < 10 micrometers 77 µg/m3 24-hour 4 AM
Ft. Collins - Greeley
[expand +]		 PMS Good 46 Particulate < 2.5 micrometers 8 µg/m3 24-hour 6 AM
Colorado Springs
[expand +]		 ACAD Good 47 Ozone 51 PPB 8-hour 5 PM
Grand Junction
[expand +]		 PAL Good 35 Ozone 38 PPB 8-hour 7 PM
Pueblo
[expand +]		 PWES Good 42 Ozone 45 PPB 8-hour 7 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 30 Ozone 32 PPB 8-hour 5 PM
Four Corners
[expand +]		 CTZ Good 32 Ozone 35 PPB 8-hour 6 PM
Steamboat Springs
[expand +]		 SSMB Good 17 Particulate < 2.5 micrometers 3 µg/m3 24-hour 6 AM
Aspen
[expand +]		 ASPN2 Good 29 Particulate < 10 micrometers 31 µg/m3 24-hour 2 PM
Other
[expand +]		 ALA Good 41 Particulate < 2.5 micrometers 7 µg/m3 24-hour 8 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Moderate 86 0.068 0.055 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