SmogRank / World / Hong Kong / April 2025

Most polluted cities in Hong Kong, April 2025

14 cities in Hong Kong ranked by their average PM2.5 over the 30 days. Worst: Wan Chai at 29.3 µg/m³, #114 of 2,286 cities in the world. Cleanest: Sha Tin at 17.2. A city needs measurements on 70% of the days to be ranked.

← Wan Chai 29.3
Every city in Hong Kong ranked for April 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Wan ChaiWan Chai
    89
  2. 2Tuen MunTuen Mun
    81
  3. 3Mong KokYau Tsim Mong District
    78
  4. 4FanlingNorth District
    75
  5. 5San Tung Chung HangIslands
    74
  6. 6Tai PoTai Po
    73
  7. 7Tin Shui WaiYuen Long
    72
  8. 8Tsuen WanTsuen Wan
    72
  9. 8Kwai ChungKwai Tsing District
    72
  10. 10VictoriaCentral and Western
    71
  11. 11Sham Shui PoSham Shui Po District
    70
  12. 12Sau Mau PingKwun Tong District
    69
  13. 13AberdeenSouthern District
    67
  14. 14Sha TinSha Tin
    66
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, April 2025 · Hong Kong now

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SmogRank, most polluted cities in Hong Kong, PM2.5, April 2025, smogrank.com/hk/history/2025-04 (accessed 2 Oct 2026).

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