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Detailed Air Quality Summary for 02/22/21

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
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I25GLO Good 49 Nitrogen Dioxide 52 PPB 1-hour 2 AM
Ft. Collins - Greeley
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PAO Good 41 Ozone 44 PPB 8-hour 5 PM
Colorado Springs
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ACAD Good 43 Ozone 46 PPB 8-hour 12 PM
Grand Junction
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PAL Good 38 Ozone 41 PPB 8-hour 6 PM
Colorado River Valley
[expand +]
RIFLO3 Good 38 Ozone 41 PPB 8-hour 6 PM
Four Corners
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CTZ Good 38 Ozone 41 PPB 8-hour 6 PM
Other
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ASPN Good 42 Ozone 45 PPB 8-hour 5 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 16 0.023 0.019 12 PM

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