UCSF Mount Zion Air Quality

Monitoring Station · San Francisco, United States
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
21 11pm
26
26
46 2am
46
46
46 5am
46
46
26 8am
26
26
26 11am
19
26
2pm
5pm
8pm
CAMS model adj -8
34
34
34
54
54
54
54
54
54
34
34
34
34
27
34
PM2.55.1 µg/m³ ✓ WHO
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T02:10 UTC.