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 06/28/24

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 +]		 RFN Moderate 74 Ozone 62 PPB 8-hour 3 AM
Ft. Collins - Greeley
[expand +]		 FTCW Moderate 64 Ozone 59 PPB 8-hour 3 AM
Colorado Springs
[expand +]		 MAN Moderate 58 Ozone 57 PPB 8-hour 5 AM
Grand Junction
[expand +]		 PAL Good 48 Ozone 52 PPB 8-hour 7 PM
Pueblo
[expand +]		 PWES Good 50 Ozone 54 PPB 8-hour 5 PM
Colorado River Valley
[expand +]		 RIFLO3 Good 44 Ozone 47 PPB 8-hour 6 PM
Four Corners
[expand +]		 CTZ Good 47 Ozone 51 PPB 8-hour 8 PM
Other
[expand +]		 ASPN Good 38 Ozone 41 PPB 8-hour 5 PM

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.