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Air Quality History for Choi Wan Estate (I & II), Hong Kong

Historical PM2.5 and AQI trend from monitoring stations near Choi Wan Estate (I & II), Hong Kong.

58
Current AQI
Moderate Station
48 Hours 7 Days 14 Days 20 Days
CSV JSON

Air Quality Index Station

459h

PM2.5 Station

459h · 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 59 54–71 15.8 µg/m³ 17.9 5h 2
2026-07-21 60 40–76 16.5 µg/m³ 18.6 24h 2
2026-07-20 61 28–77 17.5 µg/m³ 18.5 24h 1
2026-07-19 48 5–78 12.5 µg/m³ 14.1 24h 2
2026-07-18 41 18–54 9.8 µg/m³ 11.4 24h 2
2026-07-17 41 23–56 9.8 µg/m³ 11.4 24h 2
2026-07-16 20 4–49 4.8 µg/m³ 5.7 24h 2
2026-07-15 27 9–57 6.5 µg/m³ 7.7 24h 2
2026-07-14 13 1–125 3.8 µg/m³ 4.6 23h 2
2026-07-13 15 1–50 3.6 µg/m³ 4.0 24h 2
2026-07-12 51 21–70 13.7 µg/m³ 15.4 24h 2
2026-07-11 37 22–56 9.1 µg/m³ 9.7 24h 2
2026-07-10 24 9–33 5.7 µg/m³ 6.6 24h 2
2026-07-09 28 19–44 6.7 µg/m³ 7.6 24h 2
2026-07-08 37 15–65 9.1 µg/m³ 10.0 24h 2
2026-07-07 19 4–35 4.7 µg/m³ 5.7 24h 2
2026-07-06 20 7–46 4.8 µg/m³ 5.2 13h 3
2026-07-05 11 3–22 2.7 µg/m³ 3.8 24h 2
2026-07-04 7 1–13 1.7 µg/m³ 2.9 24h 2
2026-07-03 17 1–38 3.8 µg/m³ 4.7 24h 2
2026-07-02 15 1–45 3.6 µg/m³ 2.9 10h 4
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