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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 10/06/26 (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 +]		 RFN Moderate 54 Ozone 56 PPB 8-hour 10 PM
Ft. Collins - Greeley
[expand +]		 FTCW Good 40 Ozone 43 PPB 8-hour 10 PM
Colorado Springs
[expand +]		 MAN Good 42 Ozone 45 PPB 8-hour 10 PM
Grand Junction
[expand +]		 PAL Good 43 Ozone 46 PPB 8-hour 10 PM
Pueblo       Valid data unavailable      
Colorado River Valley
[expand +]		 RIFLO3 Good 23 Ozone 25 PPB 8-hour 10 PM
Four Corners
[expand +]		 CTZ Good 32 Ozone 35 PPB 8-hour 10 PM
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)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 ADB Moderate 64 Particulate < 10 micrometers 82 µg/m3 24-hour 1 PM
Ft. Collins - Greeley
[expand +]		 PMS Moderate 52 Particulate < 2.5 micrometers 9 µg/m3 24-hour 7 AM
Colorado Springs
[expand +]		 MAN Moderate 51 Ozone 55 PPB 8-hour 5 PM
Grand Junction
[expand +]		 PAL Good 45 Ozone 49 PPB 8-hour 8 PM
Pueblo
[expand +]		 PWES Good 48 Ozone 52 PPB 8-hour 5 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 36 Ozone 39 PPB 8-hour 5 PM
Four Corners
[expand +]		 CTZ Good 36 Ozone 39 PPB 8-hour 5 PM
Steamboat Springs
[expand +]		 SSMB Good 27 Particulate < 2.5 micrometers 4 µg/m3 24-hour 11 AM
Aspen
[expand +]		 ASPN2 Good 28 Particulate < 2.5 micrometers 5 µg/m3 24-hour 5 PM
Other
[expand +]		 DELT Good 33 Particulate < 2.5 micrometers 5 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 8 0.017 0.004 11 AM

* 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