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period particle concentration AQI classification       
current pm_2p5 9.0143 ug/m3 37.6 Good Air Quality
     
current pm_10 11.1 ug/m3 10.3 Good Air Quality
     
_1_hour pm_2p5 9.3242 ug/m3 38.9 Good Air Quality
     
_1_hour pm_10 11.2189 ug/m3 10.4 Good Air Quality
     
_3_hour pm_2p5 8.8612 ug/m3 36.9 Good Air Quality
     
_3_hour pm_10 10.8643 ug/m3 10.1 Good Air Quality
     
_24_hour pm_2p5 4.2948 ug/m3 17.9 Good Air Quality
     
_24_hour pm_10 5.3764 ug/m3 5.0 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: 25-08-2026 22:45  Temperature: 16.5°C Humidity: 94.7% Dewpoint: 15.6°C