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Air Quality History for Sai Wan Ho, Hong Kong

Historical PM2.5 and AQI trend from monitoring stations near Sai Wan Ho, Hong Kong.

44
Current AQI
Good Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

461h

PM2.5 Station

461h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-07-22 58 53–71 15.5 µg/m³ 17.5 7h 2
2026-07-21 59 39–76 16.3 µg/m³ 18.5 24h 2
2026-07-20 61 27–77 17.4 µg/m³ 18.5 24h 1
2026-07-19 47 4–78 12.4 µg/m³ 14.0 24h 2
2026-07-18 40 17–54 9.6 µg/m³ 11.3 24h 2
2026-07-17 40 23–56 9.7 µg/m³ 11.3 24h 2
2026-07-16 20 4–49 4.7 µg/m³ 5.6 24h 2
2026-07-15 26 9–58 6.4 µg/m³ 7.6 24h 2
2026-07-14 14 1–132 3.9 µg/m³ 4.8 23h 2
2026-07-13 15 1–47 3.5 µg/m³ 3.9 24h 2
2026-07-12 51 20–70 13.7 µg/m³ 15.4 24h 2
2026-07-11 36 21–57 8.9 µg/m³ 9.5 24h 2
2026-07-10 23 7–32 5.5 µg/m³ 6.4 24h 2
2026-07-09 28 18–45 6.6 µg/m³ 7.5 24h 2
2026-07-08 37 15–65 9.0 µg/m³ 9.9 24h 2
2026-07-07 19 3–36 4.6 µg/m³ 5.6 24h 2
2026-07-06 20 7–48 4.9 µg/m³ 5.2 13h 2
2026-07-05 11 2–22 2.5 µg/m³ 3.7 24h 2
2026-07-04 7 1–13 1.6 µg/m³ 2.8 24h 2
2026-07-03 16 1–37 3.8 µg/m³ 4.7 24h 2
2026-07-02 16 1–51 3.7 µg/m³ 2.8 10h 3
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