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| 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. |
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Current Hour:
| Area | Site | Air Quality | Max AQI | Pollutant | Conc. | Period | Time * (MST) |
| 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 +] |
EVG | Good | 44 | Ozone | 47 PPB | 8-hour | 12 PM |
| Ft. Collins - Greeley [expand +] |
MFP | Good | 40 | Ozone | 43 PPB | 8-hour | 2 PM |
| Colorado Springs [expand +] |
MAN | Good | 42 | Ozone | 45 PPB | 8-hour | 2 PM |
| Grand Junction [expand +] |
GJPB | Moderate | 55 | Particulate < 2.5 micrometers | 11 µg/m3 | 24-hour | 7 AM |
| Pueblo [expand +] |
PWES | Good | 38 | Ozone | 41 PPB | 8-hour | 2 PM |
| Colorado River Valley [expand +] |
RIFL | Good | 26 | Particulate < 2.5 micrometers | 4 µg/m3 | 24-hour | 12 PM |
| Four Corners [expand +] |
CTZ | Good | 29 | Ozone | 31 PPB | 8-hour | 2 PM |
| Steamboat Springs [expand +] |
SSMB | Good | 12 | Particulate < 2.5 micrometers | 2 µg/m3 | 24-hour | 2 PM |
| Aspen [expand +] |
ASPN | Good | 30 | Ozone | 32 PPB | 8-hour | 2 PM |
| Other [expand +] |
DELT | Moderate | 55 | Particulate < 2.5 micrometers | 11 µg/m3 | 24-hour | 7 AM |
| Area | Site | Visibility | Max VSI | 4-hour Average (1/km) |
Beta Extinction (1/km) |
Time * (MST) |
* All data are reported in Mountain Standard Time (MST). During daylight savings time add one hour to the reported hour.