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Detailed Air Quality Summary for 01/12/18

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
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I25GLO Moderate 57 Nitrogen Dioxide 60 PPB 1-hour 10 AM
Ft. Collins - Greeley
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GREH Good 32 Particulate < 2.5 micrometers 8 µg/m3 24-hour 2 PM
Colorado Springs
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ACAD Good 41 Ozone 44 PPB 8-hour 1 PM
Grand Junction
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GJPB Good 30 Particulate < 2.5 micrometers 7 µg/m3 24-hour 12 AM
Colorado River Valley
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RIFL Good 20 Particulate < 2.5 micrometers 5 µg/m3 24-hour 12 AM
Four Corners
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CTZ Good 33 Ozone 36 PPB 8-hour 7 PM
Other
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DELT Good 40 Particulate < 2.5 micrometers 10 µg/m3 24-hour 12 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 26 0.031 0.027 12 PM

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