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Detailed Air Quality Summary for 01/18/20

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 +]		 I25GLO Moderate 58 Particulate < 10 micrometers 70 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
[expand +]		 FTCW Good 42 Ozone 45 PPB 8-hour 2 AM
Colorado Springs
[expand +]		 ACAD Good 44 Ozone 47 PPB 8-hour 3 AM
Grand Junction
[expand +]		 PAL Good 34 Ozone 37 PPB 8-hour 1 AM
Pueblo       Valid data unavailable      
Colorado River Valley
[expand +]		 RIFLO3 Good 30 Ozone 32 PPB 8-hour 5 PM
Four Corners
[expand +]		 CTZ Good 37 Ozone 40 PPB 8-hour 5 PM
Other
[expand +]		 ASPN Good 41 Ozone 44 PPB 8-hour 5 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Poor 107 0.080 0.032 12 PM

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