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Detailed Air Quality Summary for 11/18/17 (Today)

Air Quality Forecasts and Advisories & Colorado Smoke Outlook
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.
Current Air Quality

Current Hour:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
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ADM Good 49 Particulate < 10 micrometers 53 µg/m3 24-hour 12 PM
Ft. Collins - Greeley
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GREH Moderate 55 Particulate < 2.5 micrometers 14 µg/m3 24-hour 12 PM
Colorado Springs
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MAN Good 32 Ozone 35 PPB 8-hour 12 PM
Grand Junction
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PAL Good 26 Ozone 28 PPB 8-hour 12 PM
Colorado River Valley
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RIFLO3 Good 18 Ozone 19 PPB 8-hour 12 PM
Four Corners
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CTZ Good 34 Ozone 37 PPB 8-hour 12 PM
Other
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PDX Good 31 Ozone 33 PPB 8-hour 12 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 22 0.028 0.022 12 PM

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
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ADM Moderate 72 Particulate < 10 micrometers 98 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
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GREH Moderate 56 Particulate < 2.5 micrometers 15 µg/m3 24-hour 7 AM
Colorado Springs
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MAN Good 38 Ozone 41 PPB 8-hour 6 AM
Grand Junction
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PAL Good 31 Ozone 33 PPB 8-hour 1 AM
Colorado River Valley
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RIFLO3 Good 31 Ozone 33 PPB 8-hour 1 AM
Four Corners
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CTZ Good 34 Ozone 37 PPB 8-hour 6 AM
Other
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ASPN Good 38 Ozone 41 PPB 8-hour 3 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 22 0.028 0.022 12 PM

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