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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 [expand +]  | 
	NREL | Good | 39 | Ozone | 46 PPB | 8-hour | 12 PM | 
| Ft. Collins - Greeley [expand +]  | 
	GRET | Good | 32 | Ozone | 38 PPB | 8-hour | 1 AM | 
| Colorado Springs [expand +]  | 
	MAN | Good | 37 | Ozone | 44 PPB | 8-hour | 12 PM | 
| Grand Junction [expand +]  | 
	PAL | Good | 32 | Ozone | 38 PPB | 8-hour | 1 AM | 
| Colorado River Valley [expand +]  | 
	RIFLO3 | Good | 25 | Ozone | 29 PPB | 8-hour | 12 PM | 
| Four Corners [expand +]  | 
	CTZ | Good | 26 | Ozone | 31 PPB | 8-hour | 1 AM | 
| Other [expand +]  | 
	LAY | Good | 36 | Ozone | 43 PPB | 8-hour | 1 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.