Detailed Air Quality Summary for 07/11/18

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 *
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BOUR Unhealthy for Sensitive Groups 115 Ozone 75 PPB 8-hour 7 PM
Ft. Collins - Greeley
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FTCW Unhealthy for Sensitive Groups 101 Ozone 71 PPB 8-hour 6 PM
Colorado Springs
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MAN Moderate 77 Ozone 63 PPB 8-hour 3 PM
Grand Junction
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PAL Moderate 84 Ozone 65 PPB 8-hour 9 PM
Colorado River Valley
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RIFLO3 Moderate 71 Ozone 61 PPB 8-hour 6 PM
Four Corners
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CTZ Moderate 77 Ozone 63 PPB 8-hour 6 PM
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ELK Moderate 77 Ozone 63 PPB 8-hour 6 PM

Area Site Visibility Max VSI 4-hour Average
Beta Extinction
Time *
Denver DES Poor 110 0.083 0.052 11 AM

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