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Detailed Air Quality Summary for 11/17/17 (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 [+] ADM Moderate 73 Particulate < 10 micrometers 100 µg/m3 24-hour 9:00 PM
Ft. Collins - Greeley [+] GREH Moderate 53 Particulate < 2.5 micrometers 13 µg/m3 24-hour 9:00 PM
Colorado Springs [+] MAN Good 35 Ozone 38 PPB 8-hour 9:00 PM
Grand Junction [+] GJPB Good 42 Particulate < 2.5 micrometers 10 µg/m3 24-hour 9:00 PM
Colorado River Valley [+] RIFLO3 Good 29 Ozone 31 PPB 8-hour 9:00 PM
Four Corners [+] CTZ Good 30 Ozone 32 PPB 8-hour 9:00 PM
Other [+] DELT Good 37 Particulate < 2.5 micrometers 9 µg/m3 24-hour 9:00 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 +]
ADM Moderate 79 Particulate < 10 micrometers 111 µg/m3 24-hour 5 PM
Ft. Collins - Greeley
[expand +]
GREH Moderate 59 Particulate < 10 micrometers 72 µg/m3 24-hour 1 AM
Colorado Springs
[expand +]
MAN Good 35 Ozone 38 PPB 8-hour 9 PM
Grand Junction
[expand +]
GJPB Moderate 65 Particulate < 2.5 micrometers 19 µg/m3 24-hour 1 AM
Colorado River Valley
[expand +]
RIFLO3 Good 29 Ozone 31 PPB 8-hour 9 PM
Four Corners
[expand +]
CTZ Good 30 Ozone 32 PPB 8-hour 8 PM
Other
[expand +]
DELT Good 42 Particulate < 2.5 micrometers 10 µg/m3 24-hour 1 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 33 0.037 0.034 12 PM

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