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Detailed Air Quality Summary for 06/25/17 (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 [+] CHAT Moderate 74 Ozone 62 PPB 8-hour 6:00 PM
Ft. Collins - Greeley [+] FTCW Good 47 Ozone 51 PPB 8-hour 6:00 PM
Colorado Springs [+] MAN Moderate 51 Ozone 55 PPB 8-hour 6:00 PM
Grand Junction [+] PAL Moderate 61 Ozone 58 PPB 8-hour 6:00 PM
Colorado River Valley [+] RIFLO3 Good 48 Ozone 52 PPB 8-hour 6:00 PM
Four Corners [+] CTZ Moderate 64 Ozone 59 PPB 8-hour 6:00 PM
Other [+] ASPN Moderate 54 Ozone 56 PPB 8-hour 6:00 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
[expand +]
CHAT Moderate 74 Ozone 62 PPB 8-hour 6 PM
Ft. Collins - Greeley
[expand +]
FTCW Good 47 Ozone 51 PPB 8-hour 6 PM
Colorado Springs
[expand +]
MAN Moderate 51 Ozone 55 PPB 8-hour 6 PM
Grand Junction
[expand +]
PAL Moderate 61 Ozone 58 PPB 8-hour 6 PM
Colorado River Valley
[expand +]
RIFLO3 Good 48 Ozone 52 PPB 8-hour 6 PM
Four Corners
[expand +]
CTZ Moderate 64 Ozone 59 PPB 8-hour 6 PM
Other
[expand +]
ASPN Moderate 54 Ozone 56 PPB 8-hour 5 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Poor 120 0.090 0.093 3 PM

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