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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 03/07/26 (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 Good 38 Ozone 41 PPB 8-hour 7 AM
Ft. Collins - Greeley
[expand +]		 MFP Good 33 Ozone 36 PPB 8-hour 7 AM
Colorado Springs
[expand +]		 MAN Good 36 Ozone 39 PPB 8-hour 7 AM
Grand Junction
[expand +]		 PAL Good 29 Ozone 31 PPB 8-hour 7 AM
Pueblo
[expand +]		 PWES Good 22 Ozone 24 PPB 8-hour 7 AM
Colorado River Valley
[expand +]		 RIFL Good 9 Particulate < 2.5 micrometers 1 µg/m3 24-hour 7 AM
Four Corners
[expand +]		 CTZ Good 16 Ozone 17 PPB 8-hour 7 AM
Steamboat Springs
[expand +]		 SSMB Good 14 Particulate < 2.5 micrometers 2 µg/m3 24-hour 7 AM
Aspen
[expand +]		 ASPN Good 25 Ozone 27 PPB 8-hour 7 AM
Other
[expand +]		 LMB Good 22 Particulate < 10 micrometers 24 µg/m3 24-hour 7 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 +]		 BHWK Good 39 Ozone 42 PPB 8-hour 3 AM
Ft. Collins - Greeley
[expand +]		 TIM Good 34 Ozone 37 PPB 8-hour 1 AM
Colorado Springs
[expand +]		 MAN Good 36 Ozone 39 PPB 8-hour 6 AM
Grand Junction
[expand +]		 PAL Good 29 Ozone 31 PPB 8-hour 6 AM
Pueblo
[expand +]		 PWES Good 29 Ozone 31 PPB 8-hour 2 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 22 Ozone 24 PPB 8-hour 1 AM
Four Corners
[expand +]		 CTZ Good 19 Ozone 21 PPB 8-hour 1 AM
Steamboat Springs
[expand +]		 SSMB Good 14 Particulate < 2.5 micrometers 2 µg/m3 24-hour 5 AM
Aspen
[expand +]		 ASPN Good 27 Ozone 29 PPB 8-hour 1 AM
Other
[expand +]		 LMB Good 25 Particulate < 10 micrometers 27 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