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
    2
  2. 2San Tung Chung HangIslands
    1
  3. 2Mong KokYau Tsim Mong District
    1
  4. 4Sham Shui PoSham Shui Po District
    1
  5. 5Kwai ChungKwai Tsing District
    1
  6. 5FanlingNorth District
    1
  7. 7Tsuen WanTsuen Wan
    1
  8. 7Tin Shui WaiYuen Long
    1
  9. 9Sau Mau PingKwun Tong District
    1
  10. 10Tai PoTai Po
    1
  11. 11Sha TinSha Tin
    1
  12. 12AberdeenSouthern District
    1
Low1–3
Moderate4–6
High7–9
Very high10

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. 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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