Colorado
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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 05/23/13

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.

Daily Highs:

Area Site Air Quality Max AQI Pollutant Conc. Period Time *
(MST)
Denver METRO
[expand +]		 CAMP Good 44 Particulate < 2.5 micrometers 10 µg/m3 24-hour 12 AM
Ft. Collins - Greeley
[expand +]		 FTCR Good 44 Ozone 52 PPB 8-hour 1 AM
Colorado Springs
[expand +]		 H24 Moderate 71 Sulfur Dioxide 52 PPB 1-hour 5 PM
Grand Junction
[expand +]		 PAL Moderate 67 Ozone 65 PPB 8-hour 7 PM
Pueblo       Valid data unavailable      
Colorado River Valley
[expand +]		 RIFLO3 Moderate 64 Ozone 64 PPB 8-hour 5 PM
Four Corners
[expand +]		 CTZ Good 47 Ozone 55 PPB 8-hour 7 PM
Steamboat Springs       Valid data unavailable      
Aspen       Valid data unavailable      
Other
[expand +]		 LAY Moderate 64 Ozone 64 PPB 8-hour 4 PM

Area Site Visibility Max VSI 4-hour Average
(1/km)
 Beta Extinction
(1/km)
 Time *
(MST)
Denver DES Poor 129 0.097 0.065 12 PM
Ft. Collins - Greeley DMA Poor 140 0.105 0.092 3 PM

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