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Detailed Air Quality Summary for 07/27/16 (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 Unhealthy 159 Ozone 89 PPB 8-hour 7 PM
Ft. Collins - Greeley
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FTCW Moderate 87 Ozone 66 PPB 8-hour 7 PM
Colorado Springs
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MAN Moderate 74 Ozone 62 PPB 8-hour 7 PM
Grand Junction
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GJPB Good 24 Particulate < 2.5 micrometers 6 µg/m3 24-hour 7 PM
Colorado River Valley
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RIFLO3 Good 47 Ozone 51 PPB 8-hour 7 PM
Four Corners
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CTZ Good 46 Ozone 50 PPB 8-hour 7 PM
Other
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DELT Unhealthy for Sensitive Groups 145 Particulate < 2.5 micrometers 54 µg/m3 24-hour 7 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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NREL Unhealthy 159 Ozone 89 PPB 8-hour 7 PM
Ft. Collins - Greeley
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FTCW Moderate 87 Ozone 66 PPB 8-hour 6 PM
Colorado Springs
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MAN Moderate 74 Ozone 62 PPB 8-hour 6 PM
Grand Junction
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PAL Good 43 Ozone 46 PPB 8-hour 1 AM
Colorado River Valley
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RIFLO3 Good 47 Ozone 51 PPB 8-hour 7 PM
Four Corners
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CTZ Good 46 Ozone 50 PPB 8-hour 5 PM
Other
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DELT Unhealthy for Sensitive Groups 145 Particulate < 2.5 micrometers 54 µg/m3 24-hour 7 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Poor 115 0.087 0.083 11 AM
Ft. Collins - Greeley DMA Poor 105 0.079 0.078 3 PM

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