X  Close Official AQ sensor station - Lewiston, Maine, USA

  PM2.5 PM10 O3 AQI classification       
Current 42 19 42 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
12-01-20266893449Good Air Quality
     
13-01-2026932503111650Good Air Quality
     
14-01-202633395510121955Moderate Air Quality 
    
15-01-2026740533121653Moderate Air Quality 
    
16-01-20262591239Good Air Quality
     
17-01-202682743381143Good Air Quality
     
18-01-20262840508111350Good Air Quality
     
19-01-202612172945829Good 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: 14-01-2026 23:00