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

  PM2.5 PM10 O3 AQI classification       
Current 9 18.4 18.4 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
13-10-20262131416101541Good Air Quality
     
14-10-2026351422414Good Air Quality
     
15-10-20264682238Good Air Quality
     
16-10-202622050161350Good Air Quality
     
17-10-20262481368Good Air Quality
     
18-10-2026102140691340Good Air Quality
     
19-10-20261945819193281Moderate Air Quality 
    
20-10-202640515512172255Moderate 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: 15-10-2026 21:00