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Detailed Air Quality Summary for 02/02/23 (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 METRO
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ADB Moderate 64 Particulate < 2.5 micrometers 19 µg/m3 24-hour 8 PM
Ft. Collins - Greeley
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GREH Moderate 90 Particulate < 2.5 micrometers 31 µg/m3 24-hour 8 PM
Colorado Springs
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MAN Good 42 Ozone 45 PPB 8-hour 8 PM
Grand Junction
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PAL Good 37 Ozone 40 PPB 8-hour 8 PM
Colorado River Valley
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RIFL Good 25 Particulate < 2.5 micrometers 6 µg/m3 24-hour 8 PM
Four Corners
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CTZ Good 30 Ozone 32 PPB 8-hour 8 PM
Other
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ASPN Good 38 Ozone 41 PPB 8-hour 8 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 METRO
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LNGM Moderate 67 Particulate < 2.5 micrometers 20 µg/m3 24-hour 4 AM
Ft. Collins - Greeley
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GREH Moderate 92 Particulate < 2.5 micrometers 32 µg/m3 24-hour 4 PM
Colorado Springs
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MAN Good 43 Ozone 46 PPB 8-hour 5 PM
Grand Junction
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PAL Good 37 Ozone 40 PPB 8-hour 8 PM
Colorado River Valley
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RIFL Good 28 Particulate < 2.5 micrometers 7 µg/m3 24-hour 2 AM
Four Corners
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CTZ Good 33 Ozone 36 PPB 8-hour 5 PM
Other
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ASPN Good 41 Ozone 44 PPB 8-hour 5 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
Beta Extinction
(1/km)
Time *
(MST)
Denver DES Moderate 60 0.055 0.044 12 PM

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