San Jose-Knox Avenue, Santa Clara, California Air Quality

Monitoring Station · Alum Rock, United States
62
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
62 6pm
33
33
33 9pm
33
40
40 12am
40
40
40 3am
40
40
40 6am
40
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— 9am
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— 12pm
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— 3pm
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CAMS model adj +6
27
27
27
27
27
34
34
34
34
34
34
34
34
34

Air Quality Forecast (24h)

PM2.517.3 µg/m³ ×1.2 WHO
Moderate
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Nearby Monitoring Stations

49
San Jose-Knox Avenue, Santa Clara, California
0.0 km PM2.5: 11.8 µg/m³
22
Cristo Rey Jesuit High School
1.8 km PM2.5: 5.3 µg/m³
56
San Jose - Jackson St, Santa Clara, California
4.1 km PM2.5: 14.5 µg/m³
21
Cupertino City Hall
16.0 km PM2.5: 5.0 µg/m³
27
JFK Middle School
18.0 km PM2.5: 6.4 µg/m³
19
Environment Education Center
19.1 km PM2.5: 4.6 µg/m³
24
N Foothhill Blvd
19.4 km PM2.5: 5.8 µg/m³
27
Acterra!
24.7 km PM2.5: 6.4 µg/m³

Nearby Cities

23 Alum Rock 23 San Jose 23 Santa Clara 23 Campbell 23 Milpitas 21 Cupertino 22 Los Gatos 23 Sunnyvale 23 Saratoga

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T21:28 UTC.