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Detailed Air Quality Summary for 10/25/14 (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 34 Particulate < 10 micrometers 37 µg/m3 24-hour 4 PM
Ft. Collins - Greeley
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FTCF Good 34 Particulate < 2.5 micrometers 8 µg/m3 24-hour 4 PM
Colorado Springs
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ACAD Good 31 Ozone 36 PPB 8-hour 4 PM
Grand Junction
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PAL Good 27 Ozone 32 PPB 8-hour 4 PM
Colorado River Valley
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RIFL Moderate 62 Particulate < 2.5 micrometers 17 µg/m3 24-hour 4 PM
Four Corners
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CTZ Good 31 Ozone 37 PPB 8-hour 4 PM
Other
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LAY Good 28 Ozone 33 PPB 8-hour 4 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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I-25 Good 50 Particulate < 10 micrometers 54 µg/m3 24-hour 7 AM
Ft. Collins - Greeley
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FTCF Good 36 Particulate < 10 micrometers 39 µg/m3 24-hour 1 PM
Colorado Springs
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H24 Good 41 Sulfur Dioxide 29 PPB 1-hour 1 PM
Grand Junction
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PAL Good 27 Ozone 32 PPB 8-hour 4 PM
Colorado River Valley
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RIFL Moderate 62 Particulate < 2.5 micrometers 17 µg/m3 24-hour 4 PM
Four Corners
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CTZ Good 31 Ozone 37 PPB 8-hour 4 PM
Other
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LAY Good 28 Ozone 33 PPB 8-hour 4 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Ft. Collins - Greeley DMA Good 46 0.047 0.036 11 AM

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