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Detailed Air Quality Summary for 01/20/20

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
[expand +]		 ADM Moderate 78 Particulate < 10 micrometers 109 µg/m3 24-hour 12 AM
Ft. Collins - Greeley
[expand +]		 GREH Moderate 56 Particulate < 2.5 micrometers 15 µg/m3 24-hour 11 PM
Colorado Springs
[expand +]		 MAN Good 41 Ozone 44 PPB 8-hour 9 AM
Grand Junction
[expand +]		 PAL Good 32 Ozone 35 PPB 8-hour 7 PM
Pueblo       Valid data unavailable      
Colorado River Valley
[expand +]		 RIFLO3 Good 31 Ozone 33 PPB 8-hour 4 PM
Four Corners
[expand +]		 CTZ Good 28 Ozone 30 PPB 8-hour 4 PM
Other
[expand +]		 ASPN Good 43 Ozone 46 PPB 8-hour 3 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Moderate 55 0.053 0.049 12 PM

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