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

Monitoring Station · Alum Rock, United States
49
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
93 6pm
49
50
50 9pm
50
57
57 12am
57
57
57 3am
57
57
57 6am
57
—
— 9am
—
—
— 12pm
—
—
— 3pm
—
—
Station readings
93
49
CAMS model adj +23
27
27
27
27
27
34
34
34
34
34
34
34
34
34

Air Quality Forecast (24h)

PM2.511.8 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

62
San Jose-Knox Avenue, Santa Clara, California
0.0 km PM2.5: 17.3 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.