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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 06/09/26 (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 +]		 EVG Moderate 54 Ozone 56 PPB 8-hour 1 PM
Ft. Collins - Greeley
[expand +]		 GRET Good 42 Ozone 45 PPB 8-hour 1 PM
Colorado Springs
[expand +]		 MAN Good 42 Ozone 45 PPB 8-hour 1 PM
Grand Junction
[expand +]		 PAL Moderate 54 Ozone 56 PPB 8-hour 1 PM
Pueblo
[expand +]		 PWES Good 41 Ozone 44 PPB 8-hour 1 PM
Colorado River Valley
[expand +]		 RIFL Unhealthy for Sensitive Groups 127 Particulate < 2.5 micrometers 46 µg/m3 24-hour 1 PM
Four Corners
[expand +]		 CTZ Good 41 Ozone 44 PPB 8-hour 1 PM
Steamboat Springs
[expand +]		 SSMB Good 23 Particulate < 2.5 micrometers 4 µg/m3 24-hour 1 PM
Aspen
[expand +]		 ASPN Good 43 Ozone 46 PPB 8-hour 1 PM
Other
[expand +]		 LMB Good 36 Particulate < 2.5 micrometers 6 µg/m3 24-hour 1 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 +]		 EVG Moderate 54 Ozone 56 PPB 8-hour 1 PM
Ft. Collins - Greeley
[expand +]		 FTC Good 43 Ozone 46 PPB 8-hour 1 AM
Colorado Springs
[expand +]		 MAN Good 42 Ozone 45 PPB 8-hour 1 PM
Grand Junction
[expand +]		 PAL Moderate 58 Ozone 57 PPB 8-hour 9 AM
Pueblo
[expand +]		 PWES Good 43 Ozone 46 PPB 8-hour 1 AM
Colorado River Valley
[expand +]		 RIFL Unhealthy for Sensitive Groups 127 Particulate < 2.5 micrometers 46 µg/m3 24-hour 1 PM
Four Corners
[expand +]		 CTZ Good 46 Ozone 50 PPB 8-hour 1 AM
Steamboat Springs
[expand +]		 SSMB Good 23 Particulate < 2.5 micrometers 4 µg/m3 24-hour 8 AM
Aspen
[expand +]		 ASPN Good 43 Ozone 46 PPB 8-hour 1 PM
Other
[expand +]		 LMB Good 40 Particulate < 2.5 micrometers 7 µg/m3 24-hour 3 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Poor 126 0.095 0.103 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