SmogRank / World / Hong Kong / September 2023

Most polluted cities in Hong Kong, September 2023

12 cities in Hong Kong ranked by their average PM2.5 over the 30 days. Worst: Wan Chai at 18.5 µg/m³, #69 of 1,830 cities in the world. Cleanest: Aberdeen at 7.3. A city needs measurements on 70% of the days to be ranked.

← Wan Chai 18.5
Every city in Hong Kong ranked for September 2023, 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
    69
  2. 2San Tung Chung HangIslands
    53
  3. 2Mong KokYau Tsim Mong District
    53
  4. 4Sham Shui PoSham Shui Po District
    52
  5. 5Kwai ChungKwai Tsing District
    52
  6. 5FanlingNorth District
    52
  7. 7Tsuen WanTsuen Wan
    52
  8. 7Tin Shui WaiYuen Long
    52
  9. 9Sau Mau PingKwun Tong District
    52
  10. 10Tai PoTai Po
    48
  11. 11Sha TinSha Tin
    42
  12. 12AberdeenSouthern District
    41
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, September 2023 · Hong Kong now

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SmogRank, most polluted cities in Hong Kong, PM2.5, September 2023, smogrank.com/hk/history/2023-09 (accessed 2 Oct 2026).

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