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Detailed Air Quality Summary for 01/15/18

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 +]		 ASP Good 41 Ozone 44 PPB 8-hour 1 AM
Ft. Collins - Greeley
[expand +]		 GRET Good 37 Ozone 40 PPB 8-hour 5 PM
Colorado Springs
[expand +]		 ACAD Good 38 Ozone 41 PPB 8-hour 6 PM
Grand Junction
[expand +]		 GJPB Good 35 Particulate < 2.5 micrometers 8 µg/m3 24-hour 9 AM
Pueblo       Valid data unavailable      
Colorado River Valley
[expand +]		 RIFL Good 27 Particulate < 2.5 micrometers 6 µg/m3 24-hour 3 PM
Four Corners
[expand +]		 CTZ Good 30 Ozone 32 PPB 8-hour 6 PM
Other
[expand +]		 DELT Moderate 54 Particulate < 2.5 micrometers 13 µg/m3 24-hour 5 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
No valid VSI calculations found (12pm - 4pm)

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