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Detailed Air Quality Summary for 04/07/21

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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BHWK Moderate 64 Ozone 59 PPB 8-hour 2 AM
Ft. Collins - Greeley
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FTCW Good 44 Ozone 47 PPB 8-hour 10 PM
Colorado Springs
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MAN Good 47 Ozone 51 PPB 8-hour 5 AM
Grand Junction
[expand +]
PAL Good 44 Ozone 48 PPB 8-hour 8 PM
Colorado River Valley
[expand +]
RIFLO3 Good 44 Ozone 47 PPB 8-hour 7 PM
Four Corners
[expand +]
CTZ Good 45 Ozone 49 PPB 8-hour 6 PM
Other
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ASPN Good 45 Ozone 49 PPB 8-hour 1 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Poor 113 0.085 0.083 11 AM

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