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
    32
  2. 2San Tung Chung HangIslands
    17
  3. 2Mong KokYau Tsim Mong District
    17
  4. 4Sham Shui PoSham Shui Po District
    17
  5. 5Kwai ChungKwai Tsing District
    17
  6. 5FanlingNorth District
    17
  7. 7Tsuen WanTsuen Wan
    17
  8. 7Tin Shui WaiYuen Long
    17
  9. 9Sau Mau PingKwun Tong District
    15
  10. 10Tai PoTai Po
    15
  11. 11Sha TinSha Tin
    13
  12. 12AberdeenSouthern District
    12
Good0–50
Satisfactory51–100
Moderate101–200
Poor201–300
Very poor301–400
Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. 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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