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Detailed Air Quality Summary for 07/26/17 (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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CHAT Moderate 93 Ozone 69 PPB 8-hour 5 PM
Ft. Collins - Greeley
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FTCW Good 49 Ozone 53 PPB 8-hour 5 PM
Colorado Springs
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MAN Moderate 61 Ozone 58 PPB 8-hour 5 PM
Grand Junction
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PAL Good 42 Ozone 46 PPB 8-hour 5 PM
Colorado River Valley
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RIFLO3 Good 36 Ozone 39 PPB 8-hour 5 PM
Four Corners
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CTZ Good 38 Ozone 42 PPB 8-hour 5 PM
Other
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ELK Good 44 Ozone 48 PPB 8-hour 5 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
[expand +]
CHAT Moderate 93 Ozone 69 PPB 8-hour 5 PM
Ft. Collins - Greeley
[expand +]
FTCW Good 49 Ozone 53 PPB 8-hour 5 PM
Colorado Springs
[expand +]
MAN Moderate 61 Ozone 58 PPB 8-hour 5 PM
Grand Junction
[expand +]
PAL Good 42 Ozone 46 PPB 8-hour 5 PM
Colorado River Valley
[expand +]
RIFLO3 Good 36 Ozone 39 PPB 8-hour 5 PM
Four Corners
[expand +]
CTZ Good 38 Ozone 42 PPB 8-hour 5 PM
Other
[expand +]
ELK Good 44 Ozone 47 PPB 8-hour 4 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Poor 138 0.104 0.088 1 PM

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