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Detailed Air Quality Summary for 07/28/14

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
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NREL Moderate 97 Ozone 74 PPB 8-hour 7 PM
Ft. Collins - Greeley
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FTCW Moderate 87 Ozone 71 PPB 8-hour 7 PM
Colorado Springs
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ACAD Good 44 Ozone 52 PPB 8-hour 6 PM
Grand Junction
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PAL Good 50 Ozone 59 PPB 8-hour 7 PM
Colorado River Valley
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RIFLO3 Good 42 Ozone 50 PPB 8-hour 5 PM
Four Corners
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CTZ Good 47 Ozone 56 PPB 8-hour 7 PM
Other
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LAY Good 46 Ozone 54 PPB 8-hour 5 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Poor 149 0.112 0.108 12 PM
Ft. Collins - Greeley DMA Moderate 92 0.071 0.077 3 PM

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