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

Monitoring Station · Alum Rock, United States
50
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
50 3am
57
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57 6am
57
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57 9am
57
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57 12pm
57
57
57 3pm
57
37
— 6pm
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— 9pm
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— 12am
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CAMS model adj +3
54
54
54
54
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54
34

Air Quality Forecast (24h)

PM2.512.0 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

30
San Jose-Knox Avenue, Santa Clara, California
0.0 km PM2.5: 7.2 µg/m³
38
San Jose-Knox Avenue, Santa Clara, California
0.0 km PM2.5: 9.1 µg/m³
40
Cristo Rey Jesuit High School
1.8 km PM2.5: 9.5 µg/m³
43
San Jose - Jackson St, Santa Clara, California
4.1 km PM2.5: 10.3 µg/m³
38
San Jose - Jackson St, Santa Clara, California
4.1 km PM2.5: 9.1 µg/m³
35
Cupertino City Hall
16.0 km PM2.5: 8.3 µg/m³
52
JFK Middle School
18.0 km PM2.5: 12.8 µg/m³
34
Environment Education Center
19.1 km PM2.5: 8.2 µg/m³

Nearby Cities

63 Alum Rock 63 San Jose 64 Santa Clara 63 Campbell 69 Milpitas 64 Cupertino 63 Los Gatos 64 Sunnyvale 63 Saratoga

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T06:36 UTC.