San Jose-Knox Avenue, Santa Clara, California Air Quality
Monitoring Station
· Alum Rock, United States
40
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
30
9pm
30
30
30
12am
37
37
37
3am
37
37
37
6am
37
37
37
9am
37
30
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
CAMS model
adj +3
27
27
27
27
34
34
34
34
34
34
34
34
34
34
27
Air Quality Forecast (24h)
PM2.59.6 µg/m³
✓ WHO
Good
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T00:51 UTC.