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
11 6pm
12
12
7 9pm
7
7
7 12am
7
7
7 3am
7
7
7 6am
19
19
— 9am
—
—
— 12pm
—
—
— 3pm
—
—
Station readings
11
12
12
CAMS model adj -18
25
25
25
25
25
25
25
25
25
25
25
25
25
37
37

Air Quality Trend (24h)

PM2.53.0 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

16
Cypress and Pine Playlot
0.3 km PM2.5: 3.8 µg/m³
12
California and Cypress Ave
0.3 km PM2.5: 2.9 µg/m³
17
Rise South City Office
0.4 km PM2.5: 4.1 µg/m³
11
Grand and Magnolia St
0.8 km PM2.5: 2.7 µg/m³
11
Gardiner Park
1.0 km PM2.5: 2.6 µg/m³
10
Orange Memorial Park
1.5 km PM2.5: 2.3 µg/m³
9
Buri Buri Park
2.8 km PM2.5: 2.2 µg/m³
11
Brentwood Park
3.1 km PM2.5: 2.7 µg/m³

Nearby Cities

15 South San Francisco 14 San Bruno 15 Visitacion Valley 14 Daly City 13 Millbrae 15 Bayview-Hunters Point 12 Pacifica 12 Burlingame 15 Noe Valley

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T21:33 UTC.