X  Close Official AQ sensor station - Madison East, Wisconsin, USA

  PM2.5 PM10 O3 AQI classification       
Current 14 13 29.9 29.9 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
09-22-202612141544415Good Air Quality
     
09-23-202612253547935Good Air Quality
     
09-24-20263041558111555Moderate Air Quality 
    
09-25-20262851609152060Moderate Air Quality 
    
09-26-202621283368933Good Air Quality
     
09-27-20263444539121653Moderate Air Quality 
    
09-28-202631425010121450Good Air Quality
     
09-29-202632556510182365Moderate 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: 09-24-2026 17:00