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 Hour:
Area | Site | Air Quality | Max AQI | Pollutant | Conc. | Period | Time * (MST) |
Colorado River Valley |
Four Corners |
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 +] |
I25GLO | Good | 37 | Particulate < 2.5 micrometers | 9 µg/m3 | 24-hour | 2 AM |
Ft. Collins - Greeley [expand +] |
GREH | Good | 18 | Particulate < 2.5 micrometers | 4 µg/m3 | 24-hour | 1 AM |
Colorado Springs [expand +] |
CCOL | Good | 21 | Particulate < 2.5 micrometers | 5 µg/m3 | 24-hour | 1 AM |
Grand Junction [expand +] |
GJPB | Good | 10 | Particulate < 2.5 micrometers | 2 µg/m3 | 24-hour | 1 AM |
Pueblo [expand +] |
PFS | Good | 12 | Particulate < 2.5 micrometers | 3 µg/m3 | 24-hour | 1 AM |
Colorado River Valley |
Four Corners |
Other [expand +] |
TEL | Good | 50 | Particulate < 10 micrometers | 54 µg/m3 | 24-hour | 2 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.