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Banner with Colorado and CDPHE logos on left with text on right reading Colorado Air Quality with Department of Public Health and Environment on the next line.

Detailed Air Quality Summary for 10/09/24 (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 +]		 LNGM Moderate 61 Particulate < 2.5 micrometers 14 µg/m3 24-hour 2 PM
Ft. Collins - Greeley
[expand +]		 PMS Moderate 65 Particulate < 2.5 micrometers 16 µg/m3 24-hour 2 PM
Colorado Springs
[expand +]		 CCOL Moderate 56 Particulate < 2.5 micrometers 12 µg/m3 24-hour 2 PM
Grand Junction
[expand +]		 GJPB Good 49 Particulate < 2.5 micrometers 9 µg/m3 24-hour 2 PM
Pueblo
[expand +]		 PFS Moderate 63 Particulate < 2.5 micrometers 16 µg/m3 24-hour 2 PM
Colorado River Valley
[expand +]		 RIFL Good 28 Particulate < 2.5 micrometers 5 µg/m3 24-hour 2 PM
Four Corners
[expand +]		 CTZ Good 31 Ozone 34 PPB 8-hour 2 PM
Other
[expand +]		 LMB Moderate 78 Particulate < 2.5 micrometers 24 µg/m3 24-hour 2 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Good 42 0.043 0.041 2 PM

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 LNGM Moderate 65 Particulate < 2.5 micrometers 17 µg/m3 24-hour 1 AM
Ft. Collins - Greeley
[expand +]		 GREH Moderate 69 Particulate < 2.5 micrometers 19 µg/m3 24-hour 1 AM
Colorado Springs
[expand +]		 CCOL Moderate 73 Particulate < 2.5 micrometers 21 µg/m3 24-hour 1 AM
Grand Junction
[expand +]		 GJPB Moderate 56 Particulate < 2.5 micrometers 12 µg/m3 24-hour 1 AM
Pueblo
[expand +]		 PFS Moderate 88 Particulate < 2.5 micrometers 29 µg/m3 24-hour 1 AM
Colorado River Valley
[expand +]		 RIFL Good 28 Particulate < 2.5 micrometers 5 µg/m3 24-hour 5 AM
Four Corners
[expand +]		 CTZ Good 31 Ozone 34 PPB 8-hour 2 PM
Other
[expand +]		 LMB Moderate 79 Particulate < 2.5 micrometers 24 µg/m3 24-hour 9 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Moderate 87 0.069 0.050 11 AM

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

AQI health statements
Site information and abbreviations