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Detailed Air Quality Summary for 07/17/18

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 METRO
[expand +]		 CHAT Unhealthy for Sensitive Groups 126 Ozone 78 PPB 8-hour 7 PM
Ft. Collins - Greeley
[expand +]		 GRET Unhealthy for Sensitive Groups 101 Ozone 71 PPB 8-hour 7 PM
Colorado Springs
[expand +]		 ACAD Moderate 93 Ozone 68 PPB 8-hour 5 PM
Grand Junction
[expand +]		 PAL Moderate 51 Ozone 55 PPB 8-hour 6 PM
Pueblo       Valid data unavailable      
Colorado River Valley
[expand +]		 RIFLO3 Good 47 Ozone 51 PPB 8-hour 4 PM
Four Corners
[expand +]		 CTZ Good 41 Ozone 44 PPB 8-hour 8 PM
Other
[expand +]		 ELK Moderate 58 Ozone 57 PPB 8-hour 7 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Poor 136 0.102 0.087 12 PM

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