X  Close Official AQ sensor station - Rockville, Maryland, USA

  PM2.5 PM10 O3 AQI classification       
Current 25 20 25 Good Air Quality
     
Forecastmin avg maxmin avg maxmin avg max           
09-05-2024152531813156112631Good Air Quality
     
09-06-2024202946101419293146Good Air Quality
     
09-07-2024523322912381632Good Air Quality
     
09-08-202441225248592025Good Air Quality
     
09-09-2024214062612202102762Moderate Air Quality 
    
09-10-20243960721019241113272Moderate Air Quality 
    
09-11-20245568821522281124282Moderate 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: 09-07-2024 9:00 am