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Air Quality History for San Francisco, United States

Historical PM2.5 and AQI trend from monitoring stations near San Francisco, United States.

4
Current AQI
Good Station

Air Quality Index Station

164h

PM2.5 Station

164h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-08-08 24 16–31 5.6 µg/m³ 6.5 2h 1
2026-08-07 19 4–41 4.5 µg/m³ 5.5 22h 1
2026-08-06 19 12–25 4.5 µg/m³ 5.1 24h 1
2026-08-05 24 10–36 5.7 µg/m³ 7.0 24h 1
2026-08-04 23 3–53 5.4 µg/m³ 7.9 24h 1
2026-08-03 40 18–62 10.0 µg/m³ 15.9 23h 1
2026-08-02 27 8–151 7.3 µg/m³ 11.4 24h 1
2026-08-01 14 1–66 3.6 µg/m³ 5.4 21h 1
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