9th St. and Brannan St. (BC)

Monitoring Station · San Francisco, United States
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
12 6pm
13
8
8 9pm
8
8
8 12am
8
8
8 3am
8
8
8 6am
20
9am
12pm
3pm
Station readings
12
13
CAMS model adj -17
25
25
25
25
25
25
25
25
25
25
25
25
25
37
PM2.53.1 µg/m³ ✓ WHO
Good

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-09T21:24 UTC.