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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 06/02/25 (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 +]		 BHWK Good 43 Ozone 46 PPB 8-hour 3 AM
Ft. Collins - Greeley
[expand +]		 PMS Good 42 Particulate < 2.5 micrometers 7 µg/m3 24-hour 3 AM
Colorado Springs
[expand +]		 MAN Good 36 Ozone 39 PPB 8-hour 3 AM
Grand Junction
[expand +]		 PAL Good 44 Ozone 48 PPB 8-hour 3 AM
Pueblo
[expand +]		 PWES Good 32 Ozone 35 PPB 8-hour 3 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 31 Ozone 33 PPB 8-hour 3 AM
Four Corners
[expand +]		 CTZ Good 44 Ozone 48 PPB 8-hour 3 AM
Steamboat Springs
[expand +]		 SSMB Good 24 Particulate < 2.5 micrometers 4 µg/m3 24-hour 3 AM
Other
[expand +]		 ASPN Good 40 Ozone 43 PPB 8-hour 3 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
No valid VSI calculations found (12pm - 4pm)

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 AURE Good 43 Ozone 46 PPB 8-hour 1 AM
Ft. Collins - Greeley
[expand +]		 PMS Good 42 Particulate < 2.5 micrometers 7 µg/m3 24-hour 2 AM
Colorado Springs
[expand +]		 MAN Good 37 Ozone 40 PPB 8-hour 1 AM
Grand Junction
[expand +]		 PAL Good 49 Ozone 53 PPB 8-hour 1 AM
Pueblo
[expand +]		 PWES Good 38 Ozone 41 PPB 8-hour 1 AM
Colorado River Valley
[expand +]		 RIFLO3 Good 36 Ozone 39 PPB 8-hour 1 AM
Four Corners
[expand +]		 CTZ Good 45 Ozone 49 PPB 8-hour 1 AM
Steamboat Springs
[expand +]		 SSMB Good 24 Particulate < 2.5 micrometers 4 µg/m3 24-hour 1 AM
Other
[expand +]		 ASPN Good 43 Ozone 46 PPB 8-hour 1 AM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
No valid VSI calculations found (12pm - 4pm)

* 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