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Detailed Air Quality Summary for 05/25/17

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 +]		 CHAT Good 50 Ozone 54 PPB 8-hour 3 PM
Ft. Collins - Greeley
[expand +]		 FTCW Good 44 Ozone 47 PPB 8-hour 7 PM
Colorado Springs
[expand +]		 MAN Moderate 54 Ozone 56 PPB 8-hour 3 PM
Grand Junction
[expand +]		 PAL Good 47 Ozone 51 PPB 8-hour 11 PM
Pueblo       Valid data unavailable      
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 12 PM
Other
[expand +]		 PDX Moderate 58 Ozone 57 PPB 8-hour 3 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Good 33 0.037 0.041 3 PM

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