Colorado
Translate
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 06/29/26 (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 87 Ozone 66 PPB 8-hour 3 AM
Ft. Collins - Greeley
[expand +]		 FTCF Moderate 54 Particulate < 2.5 micrometers 10 µg/m3 24-hour 3 AM
Colorado Springs
[expand +]		 CCOL Good 47 Particulate < 2.5 micrometers 8 µg/m3 24-hour 3 AM
Grand Junction
[expand +]		 GJPB Good 46 Particulate < 2.5 micrometers 8 µg/m3 24-hour 3 AM
Pueblo
[expand +]		 CAN Good 46 Particulate < 2.5 micrometers 8 µg/m3 24-hour 3 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 45 Ozone 49 PPB 8-hour 3 AM
Four Corners
[expand +]		 CTZ Moderate 67 Ozone 60 PPB 8-hour 3 AM
Steamboat Springs
[expand +]		 SSMB Good 46 Particulate < 2.5 micrometers 8 µg/m3 24-hour 3 AM
Aspen
[expand +]		 ASPN2 Moderate 81 Particulate < 2.5 micrometers 25 µg/m3 24-hour 3 AM
Other
[expand +]		 DELT Unhealthy for Sensitive Groups 132 Particulate < 2.5 micrometers 48 µg/m3 24-hour 3 AM

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 METRO
[expand +]		 RFN Moderate 100 Ozone 70 PPB 8-hour 1 AM
Ft. Collins - Greeley
[expand +]		 MFP Moderate 74 Ozone 62 PPB 8-hour 1 AM
Colorado Springs
[expand +]		 CCOL Good 47 Particulate < 2.5 micrometers 8 µg/m3 24-hour 1 AM
Grand Junction
[expand +]		 GJPB Good 50 Particulate < 2.5 micrometers 9 µg/m3 24-hour 1 AM
Pueblo
[expand +]		 CAN Good 50 Particulate < 2.5 micrometers 9 µg/m3 24-hour 1 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 49 Ozone 53 PPB 8-hour 1 AM
Four Corners
[expand +]		 CTZ Moderate 71 Ozone 61 PPB 8-hour 1 AM
Steamboat Springs
[expand +]		 SSMB Moderate 51 Particulate < 2.5 micrometers 9 µg/m3 24-hour 1 AM
Aspen
[expand +]		 ASPN2 Moderate 86 Particulate < 2.5 micrometers 27 µg/m3 24-hour 1 AM
Other
[expand +]		 DELT Unhealthy for Sensitive Groups 142 Particulate < 2.5 micrometers 52 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.

AQI health statements
Site information and abbreviations