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Detailed Air Quality Summary for 11/19/18 (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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I25GLO Moderate 56 Particulate < 2.5 micrometers 15 µg/m3 24-hour 3 PM
Ft. Collins - Greeley
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GREH Moderate 60 Particulate < 2.5 micrometers 16 µg/m3 24-hour 3 PM
Colorado Springs
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MAN Good 33 Ozone 36 PPB 8-hour 3 PM
Grand Junction
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GJPB Good 30 Particulate < 2.5 micrometers 7 µg/m3 24-hour 3 PM
Colorado River Valley
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RIFLO3 Good 24 Ozone 26 PPB 8-hour 3 PM
Four Corners
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CTZ Good 27 Ozone 29 PPB 8-hour 3 PM
Other
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ASPN Good 39 Ozone 42 PPB 8-hour 3 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 28 0.032 0.028 3 PM

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
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I25GLO Moderate 57 Particulate < 2.5 micrometers 15 µg/m3 24-hour 10 AM
Ft. Collins - Greeley
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GREH Moderate 61 Particulate < 2.5 micrometers 17 µg/m3 24-hour 12 PM
Colorado Springs
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MAN Good 38 Ozone 41 PPB 8-hour 4 AM
Grand Junction
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GJPB Good 30 Particulate < 2.5 micrometers 7 µg/m3 24-hour 3 PM
Colorado River Valley
[expand +]
RIFLO3 Good 24 Ozone 26 PPB 8-hour 3 PM
Four Corners
[expand +]
CTZ Good 27 Ozone 29 PPB 8-hour 3 PM
Other
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ASPN Good 39 Ozone 42 PPB 8-hour 7 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 72 0.061 0.041 12 PM

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