California and Hawthorn Pl Air Quality

Monitoring Station · South San Francisco, United States
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
25 8pm
22
25
32 11pm
32
32
32 2am
32
32
32 5am
32
32
32 8am
32
—
— 11am
—
—
— 2pm
—
—
— 5pm
—
—
Station readings
25
22
CAMS model adj -2
27
27
27
34
34
34
34
34
34
34
34
34
34
34

Air Quality Forecast (24h)

PM2.55.3 µg/m³ ✓ WHO
Good
View city history →

Nearby Monitoring Stations

27
Cypress and Pine Playlot
0.3 km PM2.5: 6.5 µg/m³
24
California and Cypress Ave
0.3 km PM2.5: 5.8 µg/m³
35
Rise South City Office
0.4 km PM2.5: 8.3 µg/m³
25
Grand and Magnolia St
0.8 km PM2.5: 5.9 µg/m³
22
Gardiner Park
1.0 km PM2.5: 5.3 µg/m³
28
Orange Memorial Park
1.5 km PM2.5: 6.6 µg/m³
28
Pacific Ave Residence
2.2 km PM2.5: 6.6 µg/m³
26
Buri Buri Park
2.8 km PM2.5: 6.2 µg/m³

Nearby Cities

27 South San Francisco 23 San Bruno 28 Visitacion Valley 25 Daly City 23 Millbrae 27 Bayview-Hunters Point 23 Pacifica 24 Burlingame 25 Noe Valley

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T23:44 UTC.