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Air Quality History for San Bruno, United States

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

18
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

439h

PM2.5 Station

439h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-20 23 8–55 4.7 µg/m³ 5.4 6h 1
2026-10-19 34 3–72 8.9 µg/m³ 12.1 23h 1
2026-10-18 51 17–107 14.2 µg/m³ 20.0 23h 1
2026-10-17 45 14–67 11.8 µg/m³ 13.0 24h 2
2026-10-16 44 16–69 11.3 µg/m³ 12.3 24h 2
2026-10-15 42 19–70 10.5 µg/m³ 12.7 24h 2
2026-10-14 36 9–80 9.2 µg/m³ 11.3 24h 2
2026-10-13 37 17–66 9.2 µg/m³ 12.4 24h 2
2026-10-12 32 13–61 7.7 µg/m³ 10.7 24h 2
2026-10-11 42 18–107 11.1 µg/m³ 14.8 24h 2
2026-10-10 41 10–72 10.9 µg/m³ 14.6 24h 2
2026-10-09 64 41–91 18.6 µg/m³ 20.3 24h 2
2026-10-08 37 4–103 10.0 µg/m³ 11.2 24h 2
2026-10-07 47 17–76 12.2 µg/m³ 12.9 24h 2
2026-10-06 49 27–73 13.0 µg/m³ 13.4 24h 2
2026-10-05 33 5–58 7.9 µg/m³ 8.4 23h 2
2026-10-04 13 1–32 3.2 µg/m³ 4.2 24h 1
2026-10-03 26 2–67 6.3 µg/m³ 7.6 18h 1
2026-10-02 22 2–72 5.8 µg/m³ 6.9 21h 1
2026-10-01 7 3–12 1.7 µg/m³ 2.2 12h 1
2026-09-30 10 10–10 2.4 µg/m³ 3.5 1h 1
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