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Detailed Air Quality Summary for 05/15/18

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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BOUR Moderate 100 Ozone 70 PPB 8-hour 8 PM
Ft. Collins - Greeley
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FTCW Moderate 97 Ozone 69 PPB 8-hour 7 PM
Colorado Springs
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ACAD Moderate 58 Ozone 57 PPB 8-hour 4 PM
Grand Junction
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PAL Moderate 51 Ozone 55 PPB 8-hour 8 PM
Colorado River Valley
[expand +]
RIFLO3 Moderate 51 Ozone 55 PPB 8-hour 7 PM
Four Corners
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CTZ Good 44 Ozone 47 PPB 8-hour 1 AM
Other
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ELK Moderate 54 Ozone 56 PPB 8-hour 7 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 71 0.061 0.048 11 AM

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