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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 01/09/26 (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 +]		 AURE Good 33 Ozone 36 PPB 8-hour 11 PM
Ft. Collins - Greeley
[expand +]		 MFP Good 32 Ozone 35 PPB 8-hour 11 PM
Colorado Springs
[expand +]		 ACAD Good 20 Ozone 22 PPB 8-hour 11 PM
Grand Junction
[expand +]		 PAL Good 32 Ozone 35 PPB 8-hour 11 PM
Pueblo
[expand +]		 PWES Good 25 Ozone 27 PPB 8-hour 11 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 21 Ozone 23 PPB 8-hour 11 PM
Four Corners
[expand +]		 CTZ Good 25 Ozone 27 PPB 8-hour 11 PM
Steamboat Springs
[expand +]		 SSMB Good 16 Particulate < 2.5 micrometers 2 µg/m3 24-hour 11 PM
Aspen
[expand +]		 ASPN Good 35 Ozone 38 PPB 8-hour 11 PM
Other
[expand +]		 DELT Good 24 Particulate < 2.5 micrometers 4 µg/m3 24-hour 11 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
No valid VSI calculations found (12pm - 4pm)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver       Valid data unavailable      
Ft. Collins - Greeley       Valid data unavailable      
Colorado Springs       Valid data unavailable      
Grand Junction       Valid data unavailable      
Pueblo       Valid data unavailable      
Colorado River Valley       Valid data unavailable      
Four Corners       Valid data unavailable      
Steamboat Springs       Valid data unavailable      
Aspen       Valid data unavailable      

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.

AQI health statements
Site information and abbreviations