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Detailed Air Quality Summary for 11/24/21

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 +]		 WBY Moderate 53 Particulate < 10 micrometers 59 µg/m3 24-hour 5 AM
Ft. Collins - Greeley
[expand +]		 GREH Good 42 Particulate < 2.5 micrometers 10 µg/m3 24-hour 1 AM
Colorado Springs
[expand +]		 ACAD Good 43 Ozone 46 PPB 8-hour 6 AM
Grand Junction
[expand +]		 GJPB Moderate 52 Particulate < 2.5 micrometers 13 µg/m3 24-hour 6 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 35 Ozone 38 PPB 8-hour 3 PM
Four Corners
[expand +]		 CTZ Good 38 Ozone 41 PPB 8-hour 6 PM
Other
[expand +]		 ASPN Good 37 Ozone 40 PPB 8-hour 7 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Good 30 0.034 0.030 1 PM

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