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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) |
| No valid VSI calculations found (12pm - 4pm) | ||||||
Daily Highs:
| Area | Site | Air Quality | Max AQI | Pollutant | Conc. | Period | Time * (MST) |
| Denver METRO [expand +] |
I25DEN | Moderate | 51 | Particulate < 2.5 micrometers | 9 µg/m3 | 24-hour | 9 AM |
| Ft. Collins - Greeley [expand +] |
GREH | Moderate | 70 | Particulate < 2.5 micrometers | 19 µg/m3 | 24-hour | 4 AM |
| Colorado Springs [expand +] |
CCOL | Good | 31 | Particulate < 10 micrometers | 33 µg/m3 | 24-hour | 9 AM |
| Grand Junction [expand +] |
GJPB | Moderate | 62 | Particulate < 2.5 micrometers | 15 µg/m3 | 24-hour | 1 AM |
| Pueblo [expand +] |
PWES | Good | 31 | Ozone | 33 PPB | 8-hour | 1 AM |
| Colorado River Valley [expand +] |
RIFL | Good | 36 | Particulate < 2.5 micrometers | 6 µg/m3 | 24-hour | 1 AM |
| Four Corners [expand +] |
PAG | Good | 30 | Particulate < 2.5 micrometers | 5 µg/m3 | 24-hour | 1 AM |
| Steamboat Springs [expand +] |
SSMB | Good | 30 | Particulate < 2.5 micrometers | 5 µg/m3 | 24-hour | 1 AM |
| Aspen [expand +] |
ASPN | Good | 25 | Ozone | 27 PPB | 8-hour | 4 AM |
| Other [expand +] |
DELT | Moderate | 55 | Particulate < 2.5 micrometers | 11 µg/m3 | 24-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.