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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 +] |
NJH | Moderate | 62 | Particulate < 10 micrometers | 78 µg/m3 | 24-hour | 6 AM |
| Ft. Collins - Greeley [expand +] |
GREH | Moderate | 62 | Particulate < 2.5 micrometers | 14 µg/m3 | 24-hour | 6 PM |
| Colorado Springs [expand +] |
MAN | Good | 34 | Ozone | 37 PPB | 8-hour | 1 AM |
| Grand Junction [expand +] |
GJPB | Moderate | 59 | Particulate < 2.5 micrometers | 13 µg/m3 | 24-hour | 4 PM |
| Pueblo [expand +] |
PWES | Good | 35 | Ozone | 38 PPB | 8-hour | 2 AM |
| Colorado River Valley [expand +] |
RIFL | Good | 33 | Particulate < 2.5 micrometers | 5 µg/m3 | 24-hour | 5 PM |
| Four Corners [expand +] |
PAG | Good | 41 | Particulate < 2.5 micrometers | 7 µg/m3 | 24-hour | 9 AM |
| Steamboat Springs [expand +] |
SSMB | Good | 36 | Particulate < 2.5 micrometers | 6 µg/m3 | 24-hour | 11 AM |
| Aspen [expand +] |
ASPN | Good | 32 | Ozone | 35 PPB | 8-hour | 4 PM |
| Other [expand +] |
ALA | Moderate | 58 | Particulate < 2.5 micrometers | 12 µg/m3 | 24-hour | 4 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.