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period particle concentration AQI classification       
current pm_2p5 38.4853 ug/m3 107.7 Unhealthy for some   
   
current pm_10 47.9559 ug/m3 44.4 Good Air Quality
     
_1_hour pm_2p5 37.867 ug/m3 106.2 Unhealthy for some   
   
_1_hour pm_10 46.4726 ug/m3 43.0 Good Air Quality
     
_3_hour pm_2p5 38.0694 ug/m3 106.7 Unhealthy for some   
   
_3_hour pm_10 46.7898 ug/m3 43.3 Good Air Quality
     
_24_hour pm_2p5 40.7172 ug/m3 113.3 Unhealthy for some   
   
_24_hour pm_10 50.6412 ug/m3 46.9 Good Air Quality
     
     

classification AQI pm10 pm2.5 The health effects should be based on 24 hours average values only.
Good Air Quality 0-50 < 54 μg/m3 < 12 μg/m3 Air quality is considered satisfactory, and air pollution poses little or no risk
Moderate Air Quality 50-100 < 154 μg/m3 < 35.4 μg/m3 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 < 254 μg/m3 < 55.4 μg/m3 Members of sensitive groups may experience health effects. The general public is not likely to be affected.
Unhealthy Air Quality 150-200 < 354 μg/m3 < 150.4 μg/m3 Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
Very Unhealthy 200-300 < 424 μg/m3 < 250.4 μg/m3 Health alert: everyone may experience more serious health effects
Hazardous Air Quality > 300 > 424 μg/m3 > 250.4 μg/m3 Health warnings of emergency conditions. The entire population is more likely to be affected
 More information:  EPA  Air Quality Index     Davis sensor  Sensor data captured at: 03-02-2026 17:05  Temperature: 13.4°C Humidity: 38.3% Dewpoint: -0.5°C