X  Close Official AQ sensor station - National Jewish Hospital, Colorado, USA

  PM2.5 PM10 O3 AQI classification       
Current 17 12 11.8 17 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
08-28-202617181888918Good Air Quality
     
08-29-20261827397112039Good Air Quality
     
08-30-20261827367111636Good Air Quality
     
08-31-202651724271124Good Air Quality
     
09-01-20263162526825Good Air Quality
     
09-02-2026132257581757Moderate Air Quality 
    
09-03-2026122611751142117Unhealthy for some  
   
09-04-20262229689122568Moderate Air Quality 
    
            

classification AQI The health effects should be based on 24 hours average values only.
Good Air Quality 0-50 Air quality is considered satisfactory, and air pollution poses little or no risk
Moderate Air Quality 50-100 Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
Unhealthy for some 100-150 Members of sensitive groups may experience health effects. The general public is not likely to be affected.
Unhealthy Air Quality 150-200 Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy 200-300 Health alert: everyone may experience more serious health effects
Hazardous Air Quality > 300 Health warnings of emergency conditions. The entire population is more likely to be affected
 More information:  EPA Air Quality Index      Sensor data captured at: 08-30-2026 09:00