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Air Quality History for Cheung Chau, Hong Kong

Historical PM2.5 and AQI trend from monitoring stations near Cheung Chau, Hong Kong.

78
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date AQI Range PM2.5 avg PM10 avg Hours Stations
2026-10-21 83 75–88 27.5 µg/m³ 28.9 3h 2
2026-10-20 56 26–83 15.6 µg/m³ 16.2 24h 2
2026-10-19 66 31–84 19.7 µg/m³ 20.5 24h 2
2026-10-18 53 34–109 14.0 µg/m³ 14.8 24h 2
2026-10-17 61 44–80 17.0 µg/m³ 17.6 24h 2
2026-10-16 85 62–104 28.3 µg/m³ 30.8 24h 2
2026-10-15 99 87–118 34.6 µg/m³ 39.3 24h 2
2026-10-14 114 94–139 40.8 µg/m³ 48.0 24h 2
2026-10-13 123 102–145 44.3 µg/m³ 52.1 24h 2
2026-10-12 96 89–111 33.4 µg/m³ 37.3 24h 2
2026-10-11 86 71–97 28.7 µg/m³ 30.7 24h 2
2026-10-10 83 75–97 27.4 µg/m³ 28.8 24h 2
2026-10-09 63 55–81 17.6 µg/m³ 18.3 24h 2
2026-10-08 64 36–98 19.0 µg/m³ 20.1 24h 2
2026-10-07 85 78–92 28.4 µg/m³ 30.1 20h 2
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