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Detailed Air Quality Summary for 04/20/14 (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 [+] NREL Good 34 Ozone 40 PPB 8-hour 7 AM
Ft. Collins - Greeley [+] FTCW Good 26 Ozone 31 PPB 8-hour 7 AM
Colorado Springs [+] MAN Good 34 Ozone 40 PPB 8-hour 7 AM
Grand Junction [+] PAL Good 19 Ozone 23 PPB 8-hour 7 AM
Colorado River Valley [+] RIFL Good 13 Particulate < 2.5 micrometers 3 µg/m3 24-hour 7 AM
Four Corners [+] CTZ Good 12 Ozone 14 PPB 8-hour 7 AM
Other [+] LAY Good 23 Ozone 27 PPB 8-hour 7 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 [+] RFN Good 38 Ozone 45 PPB 8-hour 1 AM
Ft. Collins - Greeley [+] FTCW Good 41 Ozone 48 PPB 8-hour 1 AM
Colorado Springs [+] MAN Good 35 Ozone 41 PPB 8-hour 6 AM
Grand Junction [+] PAL Good 33 Ozone 39 PPB 8-hour 1 AM
Colorado River Valley [+] RIFLO3 Good 29 Ozone 34 PPB 8-hour 1 AM
Four Corners [+] CTZ Good 29 Ozone 34 PPB 8-hour 1 AM
Other [+] LAY Good 36 Ozone 42 PPB 8-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.

Colorado Department of Public Health & Environment/APCD/Technical Services Program
visit us at: http://www.colorado.gov/airquality - all data are preliminary