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Detailed Air Quality Summary for 07/25/14 (Today)

Air Quality Forecasts and Advisories & Colorado Smoke Outlook
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 Air Quality

Current Hour:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver [+] CHAT Good 47 Particulate < 2.5 micrometers 11 µg/m3 24-hour 3 PM
Ft. Collins - Greeley [+] FTCW Good 42 Ozone 50 PPB 8-hour 3 PM
Colorado Springs [+] MAN Good 47 Ozone 55 PPB 8-hour 3 PM
Grand Junction [+] PAL Good 39 Ozone 46 PPB 8-hour 3 PM
Colorado River Valley [+] RIFLO3 Good 37 Ozone 44 PPB 8-hour 3 PM
Four Corners [+] CTZ Good 41 Ozone 48 PPB 8-hour 3 PM
Other [+] LAY Good 42 Ozone 49 PPB 8-hour 3 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 54 0.053 0.050 3 PM

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver [+] RFN Good 49 Ozone 58 PPB 8-hour 8 AM
Ft. Collins - Greeley [+] FTCW Good 42 Ozone 50 PPB 8-hour 3 PM
Colorado Springs [+] MAN Good 47 Ozone 55 PPB 8-hour 3 PM
Grand Junction [+] PAL Good 39 Ozone 46 PPB 8-hour 3 PM
Colorado River Valley [+] RIFLO3 Good 37 Ozone 44 PPB 8-hour 3 PM
Four Corners [+] CTZ Good 41 Ozone 48 PPB 8-hour 3 PM
Other [+] LAY Good 42 Ozone 49 PPB 8-hour 3 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 54 0.053 0.050 3 PM
Ft. Collins - Greeley DMA Poor 128 0.096 0.128 2 PM

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