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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
[expand +]		 ADB Moderate 65 Particulate < 2.5 micrometers 19 µg/m3 24-hour 9 PM
Ft. Collins - Greeley
[expand +]		 GREH Moderate 91 Particulate < 2.5 micrometers 31 µg/m3 24-hour 9 PM
Colorado Springs
[expand +]		 MAN Good 41 Ozone 44 PPB 8-hour 9 PM
Grand Junction
[expand +]		 PAL Good 36 Ozone 39 PPB 8-hour 9 PM
Colorado River Valley
[expand +]		 RIFL Good 26 Particulate < 2.5 micrometers 6 µg/m3 24-hour 9 PM
Four Corners
[expand +]		 CTZ Good 28 Ozone 30 PPB 8-hour 9 PM
Other
[expand +]		 ASPN Good 38 Ozone 41 PPB 8-hour 9 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
[expand +]		 LNGM Moderate 67 Particulate < 2.5 micrometers 20 µg/m3 24-hour 5 AM
Ft. Collins - Greeley
[expand +]		 GREH Moderate 92 Particulate < 2.5 micrometers 32 µg/m3 24-hour 4 PM
Colorado Springs
[expand +]		 MAN Good 43 Ozone 46 PPB 8-hour 6 PM
Grand Junction
[expand +]		 PAL Good 37 Ozone 40 PPB 8-hour 8 PM
Colorado River Valley
[expand +]		 RIFL Good 28 Particulate < 2.5 micrometers 7 µg/m3 24-hour 2 AM
Four Corners
[expand +]		 CTZ Good 33 Ozone 36 PPB 8-hour 6 PM
Other
[expand +]		 ASPN Good 41 Ozone 44 PPB 8-hour 6 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.