X  Close Official AQ sensor station - Oshawa, Ontario, Canada

  PM2.5 PM10 O3 AQI classification       
Current 95 33.6 95 Moderate Air Quality  
    
Forecastmin avg maxmin avg maxmin avg max           
19-07-202613163445934Good Air Quality
     
20-07-20261439844122984Moderate Air Quality 
    
21-07-20264381110112638110Unhealthy for some  
   
22-07-2026592823728Good Air Quality
     
23-07-202693155391655Moderate Air Quality 
    
24-07-202649597913182879Moderate Air Quality 
    
25-07-202641527611152476Moderate 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: 21-07-2026 02:00