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Detailed Air Quality Summary for 11/20/17 (Today)

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.

Current Hour:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver [+] RFN Good 46 Ozone 50 PPB 8-hour 12:00 AM
Ft. Collins - Greeley [+] FTCW Good 31 Ozone 33 PPB 8-hour 12:00 AM
Colorado Springs [+] ACAD Good 44 Ozone 48 PPB 8-hour 12:00 AM
Grand Junction [+] PAL Good 27 Ozone 29 PPB 8-hour 12:00 AM
Colorado River Valley [+] RIFL Good 19 Particulate < 2.5 micrometers 5 µg/m3 24-hour 12:00 AM
Four Corners [+] CTZ Good 14 Ozone 15 PPB 8-hour 12:00 AM
Other [+] DELT Good 36 Particulate < 2.5 micrometers 9 µg/m3 24-hour 12:00 AM

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

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver       Valid data unavailable      
Ft. Collins - Greeley       Valid data unavailable      
Colorado Springs       Valid data unavailable      
Grand Junction       Valid data unavailable      
Colorado River Valley       Valid data unavailable      
Four Corners       Valid data unavailable      

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.