Detailed Air Quality Summary for 05/18/17

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 *
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CHAT Good 46 Ozone 50 PPB 8-hour 1 AM
Ft. Collins - Greeley
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FTCW Good 44 Ozone 47 PPB 8-hour 4 AM
Colorado Springs
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MAN Good 43 Ozone 46 PPB 8-hour 1 AM
Grand Junction
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PAL Good 44 Ozone 47 PPB 8-hour 2 AM
Colorado River Valley
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RIFLO3 Good 44 Ozone 47 PPB 8-hour 6 PM
Four Corners
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CTZ Good 44 Ozone 47 PPB 8-hour 6 PM
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ASPN Moderate 67 Ozone 60 PPB 8-hour 4 AM

Area Site Visibility Max VSI 4-hour Average
Beta Extinction
Time *
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.