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Detailed Air Quality Summary for 12/09/18 (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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LNGM Moderate 64 Particulate < 2.5 micrometers 19 µg/m3 24-hour 8 PM
Ft. Collins - Greeley
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GREH Moderate 56 Particulate < 2.5 micrometers 15 µg/m3 24-hour 8 PM
Colorado Springs
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MAN Good 37 Ozone 40 PPB 8-hour 8 PM
Grand Junction
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GJPB Moderate 55 Particulate < 2.5 micrometers 14 µg/m3 24-hour 8 PM
Colorado River Valley
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RIFL Good 31 Particulate < 2.5 micrometers 8 µg/m3 24-hour 8 PM
Four Corners
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CTZ Good 31 Ozone 34 PPB 8-hour 8 PM
Other
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ASPN Good 41 Ozone 44 PPB 8-hour 8 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
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LNGM Moderate 77 Particulate < 2.5 micrometers 25 µg/m3 24-hour 3 AM
Ft. Collins - Greeley
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GREH Moderate 75 Particulate < 2.5 micrometers 24 µg/m3 24-hour 1 AM
Colorado Springs
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MAN Good 37 Ozone 40 PPB 8-hour 8 PM
Grand Junction
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GJPB Moderate 60 Particulate < 2.5 micrometers 16 µg/m3 24-hour 1 AM
Colorado River Valley
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RIFL Good 32 Particulate < 2.5 micrometers 8 µg/m3 24-hour 2 PM
Four Corners
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CTZ Good 32 Ozone 35 PPB 8-hour 7 PM
Other
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ASPN Good 41 Ozone 44 PPB 8-hour 8 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Poor 116 0.087 0.064 12 PM

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