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Detailed Air Quality Summary for 04/19/13

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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ASP Good 49 Ozone 58 PPB 8-hour 2 AM
Ft. Collins - Greeley
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FTCW Moderate 61 Ozone 63 PPB 8-hour 7 PM
Colorado Springs
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ACAD Good 46 Ozone 54 PPB 8-hour 5 PM
Grand Junction
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PAL Good 42 Ozone 49 PPB 8-hour 7 PM
Colorado River Valley
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RIFLO3 Good 40 Ozone 47 PPB 8-hour 5 PM
Four Corners
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CTZ Good 39 Ozone 46 PPB 8-hour 5 PM
Other
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LAY Good 41 Ozone 48 PPB 8-hour 4 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 67 0.059 0.049 11 AM
Ft. Collins - Greeley DMA Poor 186 0.140 0.117 2 PM

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