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 11/18/24

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 +]		 ADB Moderate 54 Particulate < 10 micrometers 61 µg/m3 24-hour 7 PM
Ft. Collins - Greeley
[expand +]		 FTC Good 41 Ozone 44 PPB 8-hour 9 PM
Colorado Springs
[expand +]		 MAN Good 44 Ozone 47 PPB 8-hour 1 PM
Grand Junction
[expand +]		 GJPB Moderate 55 Particulate < 2.5 micrometers 11 µg/m3 24-hour 5 PM
Pueblo
[expand +]		 PWES Good 41 Ozone 44 PPB 8-hour 5 PM
Colorado River Valley
[expand +]		 RIFL Good 31 Particulate < 2.5 micrometers 5 µg/m3 24-hour 8 PM
Four Corners
[expand +]		 CTZ Good 37 Ozone 40 PPB 8-hour 6 PM
Other
[expand +]		 ASPN Good 40 Ozone 43 PPB 8-hour 7 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Moderate 73 0.062 0.051 12 PM

* All data are reported in Mountain Standard Time (MST). During daylight savings time add one hour to the reported hour.