California and Hawthorn Pl

Monitoring Station · South San Francisco, United States
12
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
12 4am
12
12
24 7am
24
24
24 10am
24
37
12 1pm
24
24
24 4pm
24
—
— 7pm
—
—
— 10pm
—
—
— 1am
—
—
Station readings
12
12
CAMS model adj -13
25
25
25
37
37
37
37
37
50
25
37
37
37
37

Air Quality Trend (24h)

PM2.52.9 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

18
Cypress and Pine Playlot
0.3 km PM2.5: 4.3 µg/m³
13
California and Cypress Ave
0.3 km PM2.5: 3.1 µg/m³
17
Rise South City Office
0.4 km PM2.5: 4.0 µg/m³
12
Grand and Magnolia St
0.8 km PM2.5: 2.9 µg/m³
12
Gardiner Park
1.0 km PM2.5: 2.8 µg/m³
11
Orange Memorial Park
1.5 km PM2.5: 2.6 µg/m³
10
Buri Buri Park
2.8 km PM2.5: 2.5 µg/m³
11
Brentwood Park
3.1 km PM2.5: 2.6 µg/m³

Nearby Cities

13 South San Francisco 13 San Bruno 13 Visitacion Valley 13 Daly City 13 Millbrae 13 Bayview-Hunters Point 12 Pacifica 13 Burlingame 13 Noe Valley

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-10T07:26 UTC.