Translate

Detailed Air Quality Summary for 09/25/17 (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 [+] I25DEN Good 20 Particulate < 2.5 micrometers 5 µg/m3 24-hour 1:00 PM
Ft. Collins - Greeley [+] FTCW Good 13 Ozone 14 PPB 8-hour 1:00 PM
Colorado Springs [+] ACAD Good 19 Ozone 20 PPB 8-hour 1:00 PM
Grand Junction [+] PAL Good 25 Ozone 27 PPB 8-hour 1:00 PM
Colorado River Valley [+] RIFLO3 Good 18 Ozone 19 PPB 8-hour 1:00 PM
Four Corners [+] CTZ Good 28 Ozone 30 PPB 8-hour 1:00 PM
Other [+] ASPN Good 33 Ozone 36 PPB 8-hour 1:00 PM

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 +]
I25GLO Good 24 Nitrogen Dioxide 25 PPB 1-hour 5 AM
Ft. Collins - Greeley
[expand +]
FTCW Good 19 Ozone 20 PPB 8-hour 2 AM
Colorado Springs
[expand +]
ACAD Good 19 Ozone 20 PPB 8-hour 1 PM
Grand Junction
[expand +]
PAL Good 31 Ozone 33 PPB 8-hour 1 AM
Colorado River Valley
[expand +]
RIFLO3 Good 22 Ozone 24 PPB 8-hour 1 AM
Four Corners
[expand +]
CTZ Good 28 Ozone 30 PPB 8-hour 1 PM
Other
[expand +]
DELT Good 35 Particulate < 2.5 micrometers 8 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.