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Detailed Air Quality Summary for 07/29/15 (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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NREL Good 49 Ozone 58 PPB 8-hour 2 PM
Ft. Collins - Greeley
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FTCW Good 49 Ozone 58 PPB 8-hour 2 PM
Colorado Springs
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MAN Good 43 Ozone 51 PPB 8-hour 2 PM
Grand Junction
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PAL Good 38 Ozone 45 PPB 8-hour 2 PM
Colorado River Valley
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RIFLO3 Good 36 Ozone 42 PPB 8-hour 2 PM
Four Corners
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CTZ Good 36 Ozone 42 PPB 8-hour 2 PM
Other
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DELT Good 29 Particulate < 2.5 micrometers 7 µg/m3 24-hour 2 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 60 0.056 0.055 2 PM

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver
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NREL Good 49 Ozone 58 PPB 8-hour 2 PM
Ft. Collins - Greeley
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FTCW Good 49 Ozone 58 PPB 8-hour 2 PM
Colorado Springs
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MAN Good 44 Ozone 52 PPB 8-hour 1 AM
Grand Junction
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PAL Good 42 Ozone 49 PPB 8-hour 1 AM
Colorado River Valley
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RIFLO3 Good 36 Ozone 42 PPB 8-hour 2 PM
Four Corners
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CTZ Good 36 Ozone 42 PPB 8-hour 2 PM
Other
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ASPN Good 37 Ozone 44 PPB 8-hour 1 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 93 0.072 0.055 11 AM
Ft. Collins - Greeley DMA Ext Poor 238 0.469 0.209 1 PM

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