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Detailed Air Quality Summary for 09/10/19

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 METRO
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NREL Unhealthy for Sensitive Groups 112 Ozone 74 PPB 8-hour 6 PM
Ft. Collins - Greeley
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FTCW Unhealthy for Sensitive Groups 101 Ozone 71 PPB 8-hour 7 PM
Colorado Springs
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MAN Moderate 77 Ozone 63 PPB 8-hour 9 PM
Grand Junction
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PAL Good 46 Ozone 50 PPB 8-hour 6 PM
Colorado River Valley
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RIFLO3 Good 44 Ozone 47 PPB 8-hour 7 PM
Four Corners
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CTZ Good 44 Ozone 47 PPB 8-hour 3 PM
Other
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ASPN Moderate 64 Ozone 59 PPB 8-hour 7 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 89 0.070 0.061 11 AM

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