Colorado
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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 05/07/25

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.

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 EVG Moderate 67 Ozone 60 PPB 8-hour 5 PM
Ft. Collins - Greeley
[expand +]		 FTCW Moderate 54 Ozone 56 PPB 8-hour 4 PM
Colorado Springs
[expand +]		 MAN Moderate 61 Ozone 58 PPB 8-hour 7 PM
Grand Junction
[expand +]		 PAL Good 49 Ozone 53 PPB 8-hour 7 PM
Pueblo
[expand +]		 PWES Moderate 61 Ozone 58 PPB 8-hour 7 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 48 Ozone 52 PPB 8-hour 7 PM
Four Corners
[expand +]		 CTZ Good 40 Ozone 43 PPB 8-hour 7 PM
Steamboat Springs
[expand +]		 SSMB Good 17 Particulate < 2.5 micrometers 3 µg/m3 24-hour 12 AM
Other
[expand +]		 LMB Good 24 Particulate < 2.5 micrometers 4 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.