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Detailed Air Quality Summary for 02/23/20

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 Moderate 53 Particulate < 2.5 micrometers 13 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
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GREH Moderate 52 Particulate < 2.5 micrometers 13 µg/m3 24-hour 1 AM
Colorado Springs
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MAN Good 44 Ozone 48 PPB 8-hour 8 PM
Grand Junction
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GJPB Good 33 Particulate < 2.5 micrometers 8 µg/m3 24-hour 11 AM
Colorado River Valley
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RIFLO3 Good 36 Ozone 39 PPB 8-hour 7 PM
Four Corners
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CTZ Good 35 Ozone 38 PPB 8-hour 7 PM
Other
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ASPN Good 44 Ozone 47 PPB 8-hour 8 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.