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Detailed Air Quality Summary for 12/20/14 (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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I-25 Good 48 Particulate < 10 micrometers 52 µg/m3 24-hour 8 AM
Ft. Collins - Greeley
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FTCF Moderate 57 Particulate < 2.5 micrometers 15 µg/m3 24-hour 8 AM
Colorado Springs
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MAN Good 28 Ozone 33 PPB 8-hour 8 AM
Grand Junction
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GJPB Moderate 53 Particulate < 2.5 micrometers 13 µg/m3 24-hour 8 AM
Colorado River Valley
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RIFLO3 Good 8 Ozone 10 PPB 8-hour 8 AM
Four Corners
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CTZ Good 16 Ozone 19 PPB 8-hour 8 AM
Other
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DELT Good 35 Particulate < 2.5 micrometers 8 µg/m3 24-hour 8 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
No valid VSI calculations found (12pm - 4pm)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
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I-25 Moderate 58 Particulate < 2.5 micrometers 15 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
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FTCF Moderate 59 Particulate < 2.5 micrometers 16 µg/m3 24-hour 5 AM
Colorado Springs
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MAN Good 28 Ozone 33 PPB 8-hour 8 AM
Grand Junction
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GJPB Moderate 54 Particulate < 2.5 micrometers 14 µg/m3 24-hour 5 AM
Colorado River Valley
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RIFLO3 Good 10 Ozone 12 PPB 8-hour 7 AM
Four Corners
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CTZ Good 16 Ozone 19 PPB 8-hour 8 AM
Other
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DELT Good 42 Particulate < 2.5 micrometers 10 µg/m3 24-hour 4 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
No valid VSI calculations found (12pm - 4pm)

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