Translate

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 44 Ozone 48 PPB 8-hour 4:00 AM
Ft. Collins - Greeley [+] FTCW Good 31 Ozone 34 PPB 8-hour 4:00 AM
Colorado Springs [+] ACAD Good 44 Ozone 47 PPB 8-hour 4:00 AM
Grand Junction [+] GJPB Good 24 Particulate < 2.5 micrometers 6 µg/m3 24-hour 4:00 AM
Colorado River Valley [+] RIFL Good 15 Particulate < 2.5 micrometers 4 µg/m3 24-hour 4:00 AM
Four Corners [+] CTZ Good 13 Ozone 14 PPB 8-hour 4:00 AM
Other [+] DELT Good 35 Particulate < 2.5 micrometers 9 µg/m3 24-hour 4:00 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
[expand +]
RFN Good 46 Ozone 50 PPB 8-hour 1 AM
Ft. Collins - Greeley
[expand +]
FTCW Good 31 Ozone 34 PPB 8-hour 4 AM
Colorado Springs
[expand +]
ACAD Good 44 Ozone 47 PPB 8-hour 4 AM
Grand Junction
[expand +]
GJPB Good 24 Particulate < 2.5 micrometers 6 µg/m3 24-hour 4 AM
Colorado River Valley
[expand +]
RIFL Good 18 Particulate < 2.5 micrometers 4 µg/m3 24-hour 1 AM
Four Corners
[expand +]
CTZ Good 13 Ozone 14 PPB 8-hour 4 AM
Other
[expand +]
DELT Good 36 Particulate < 2.5 micrometers 9 µg/m3 24-hour 1 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.