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Detailed Air Quality Summary for 06/27/19

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 115 Ozone 75 PPB 8-hour 10 PM
Ft. Collins - Greeley
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FTCW Moderate 80 Ozone 64 PPB 8-hour 10 PM
Colorado Springs
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ACAD Moderate 54 Ozone 56 PPB 8-hour 4 PM
Grand Junction
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PAL Good 47 Ozone 51 PPB 8-hour 6 PM
Colorado River Valley
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RIFL Good 40 Particulate < 2.5 micrometers 10 µg/m3 24-hour 5 AM
Four Corners
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CTZ Good 44 Ozone 47 PPB 8-hour 6 PM
Other
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ASPN Good 45 Ozone 49 PPB 8-hour 4 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 60 0.055 0.043 11 AM

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