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Detailed Air Quality Summary for 01/23/13

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.

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver [+] CAMP Moderate 81 Nitrogen Dioxide 82 PPB 1-hour 8 PM
Ft. Collins - Greeley [+] FTCF Moderate 54 Particulate < 10 micrometers 61 µg/m3 24-hour 6 PM
Colorado Springs [+] MAN Good 34 Ozone 40 PPB 8-hour 6 AM
Grand Junction [+] GJPB Unhealthy for Sensitive Groups 112 Particulate < 2.5 micrometers 40 µg/m3 24-hour 8 AM
Colorado River Valley [+] RIFLO3 Good 19 Ozone 22 PPB 8-hour 4 PM
Four Corners [+] CTZ Good 25 Ozone 29 PPB 8-hour 4 PM
Other [+] LAY Good 33 Ozone 39 PPB 8-hour 6 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Ft. Collins - Greeley DMA Ext Poor 202 0.163 0.166 1 PM

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