Location: North Willow Glen, San Jose, Ca, USA
Altitude: 125 feet, Grid 37°18.544 , 121°54.521
Arduino based Weather Station

Environmental Information

Air Quality is Good


Last Update 12/7/25 9:01 AM
PM 2.5 AQI (Current LRAPA¹ 10 Min Avg) 31

PM sensor values and averages
PM 1.0 concentration (µg/m³) 11 µg/m³
PM 2.5 concentration (µg/m³) 16 µg/m³
PM 10 concentration (µg/m³) 18 µg/m³
PM 2.5 concentration (µg/m³) 2 Minute Average 16.0 µg/m³
PM 2.5 concentration (µg/m³) 10 Minute Average 16.0 µg/m³
PM 2.5 concentration (µg/m³) 30 Minute Average 15.8 µg/m³
PM 2.5 AQI (10 Min Avg) 59
PM 2.5 concentration (µg/m³) 1 Hour Average 16.0 µg/m³
PM 2.5 concentration (µg/m³) 24 Hour Average 18.9 µg/m³
PM 2.5 AQI (24 Hour Avg) 65

PM 2.5 corrected for wood smoke conditions using the LRAPA¹ formula
PM 2.5 concentration (µg/m³) 7 µg/m³
PM 2.5 concentration (µg/m³) 10 Min Avg 7.0 µg/m³
PM 2.5 AQI (10 Min Avg) 31
PM 2.5 concentration (µg/m³) 1 Hour Average 7.0 µg/m³
PM 2.5 concentration (µg/m³) 24 Hour Avg 8.8 µg/m³
PM 2.5 AQI (24 Hour Avg) 37
¹ Lane Regional Air Protection Agency, Springfield, OR

Charts updated at 12/7/25 9:01 AM
air quality index 24 hour timescale

air quality index 7 day timescale

pollution 24 hour timescale

pollution 7 day timescale


Additional averages and historical information
PM 10 concentration (µg/m³) 24 Hour Average 21.7 µg/m³
PM 10 AQI (24 Hour Avg) 20
PM 2.5 concentration (µg/m³) 1 Hour Ago 16 µg/m³
PM 2.5 concentration (µg/m³) 6 Hours Ago 21 µg/m³
PM 2.5 concentration (µg/m³) 12 Hours Ago 23 µg/m³
PM 2.5 concentration (µg/m³) 24 Hours Ago 8 µg/m³

Additional averages and historical information corrected for wood smoke conditions
PM 2.5 concentration (µg/m³) 2 Minute Average 7 µg/m³
PM 2.5 concentration (µg/m³) 1 Hour Ago 7 µg/m³
PM 2.5 concentration (µg/m³) 6 Hours Ago 10 µg/m³
PM 2.5 concentration (µg/m³) 12 Hours Ago 11 µg/m³
PM 2.5 concentration (µg/m³) 24 Hours Ago 3 µg/m³