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Detailed Air Quality Summary for 02/17/19 (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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AURE Good 35 Ozone 38 PPB 8-hour 11 PM
Ft. Collins - Greeley
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FTCW Good 32 Ozone 35 PPB 8-hour 11 PM
Colorado Springs
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MAN Good 37 Ozone 40 PPB 8-hour 11 PM
Grand Junction
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PAL Good 41 Ozone 44 PPB 8-hour 11 PM
Colorado River Valley
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RIFLO3 Good 34 Ozone 37 PPB 8-hour 11 PM
Four Corners       Valid data unavailable      
Other
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ASPN Good 40 Ozone 43 PPB 8-hour 11 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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I25GLO Moderate 52 Particulate < 2.5 micrometers 13 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
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FTCW Good 44 Ozone 47 PPB 8-hour 2 AM
Colorado Springs
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MAN Good 45 Ozone 49 PPB 8-hour 5 AM
Grand Junction
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PAL Good 42 Ozone 45 PPB 8-hour 9 PM
Colorado River Valley
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RIFLO3 Good 41 Ozone 44 PPB 8-hour 6 PM
Four Corners       Valid data unavailable      
Other
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ASPN Good 45 Ozone 49 PPB 8-hour 4 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Good 45 0.046 0.058 4 PM

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