X  Close Official AQ sensor station - Aspen PM, Colorado, USA

  PM2.5 PM10 O3 AQI classification       
Current 114 53 6 114 Unhealthy for some   
   
Forecastmin avg maxmin avg maxmin avg max           
07-05-202630567413274374Moderate Air Quality 
    
07-06-202631526116252961Moderate Air Quality 
    
07-07-202644587619284876Moderate Air Quality 
    
07-08-20261832529131952Moderate Air Quality 
    
07-09-2026172025791125Good Air Quality
     
07-10-202616181988919Good Air Quality
     
07-11-202615181978819Good 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: 07-07-2026 4:00 am