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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.

69
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

480h

PM2.5 Station

480h · 2 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 89 74–98 30.4 µg/m³ 34.1 5h 2
2026-10-20 54 32–71 14.1 µg/m³ 15.3 24h 2
2026-10-19 62 30–84 18.5 µg/m³ 19.8 24h 2
2026-10-18 45 26–64 11.1 µg/m³ 12.2 24h 2
2026-10-17 56 39–75 15.2 µg/m³ 16.7 24h 2
2026-10-16 83 58–102 27.3 µg/m³ 30.7 24h 2
2026-10-15 98 78–125 34.1 µg/m³ 38.6 24h 2
2026-10-14 116 91–145 41.4 µg/m³ 47.3 24h 2
2026-10-13 139 101–158 54.2 µg/m³ 61.0 24h 2
2026-10-12 95 85–112 32.7 µg/m³ 35.9 24h 2
2026-10-11 82 70–94 26.6 µg/m³ 28.8 24h 2
2026-10-10 77 69–89 24.4 µg/m³ 26.8 24h 2
2026-10-09 57 53–65 15.1 µg/m³ 16.4 24h 2
2026-10-08 59 27–96 16.9 µg/m³ 18.8 24h 2
2026-10-07 76 57–84 24.2 µg/m³ 26.7 24h 2
2026-10-06 58 28–69 16.1 µg/m³ 17.3 24h 2
2026-10-05 33 9–63 8.0 µg/m³ 8.4 24h 2
2026-10-04 33 13–46 8.0 µg/m³ 8.8 24h 2
2026-10-03 29 3–47 7.0 µg/m³ 7.8 24h 1
2026-10-02 39 3–57 9.6 µg/m³ 10.3 24h 1
2026-10-01 30 23–44 7.1 µg/m³ 7.7 19h 1
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