SmogRank / World / Hong Kong / March 2025

Most polluted cities in Hong Kong, March 2025

13 cities in Hong Kong ranked by their average PM2.5 over the 31 days. Worst: Wan Chai at 22.4 µg/m³, #462 of 2,500 cities in the world. Cleanest: Sha Tin at 12.4. A city needs measurements on 70% of the days to be ranked.

← Wan Chai 22.4
Every city in Hong Kong ranked for March 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
    37
  2. 2Tuen MunTuen Mun
    33
  3. 3Mong KokYau Tsim Mong District
    30
  4. 4Tin Shui WaiYuen Long
    27
  5. 5Tsuen WanTsuen Wan
    27
  6. 6Sham Shui PoSham Shui Po District
    27
  7. 7Kwai ChungKwai Tsing District
    27
  8. 8Tai PoTai Po
    27
  9. 9FanlingNorth District
    25
  10. 10San Tung Chung HangIslands
    25
  11. 10VictoriaCentral and Western
    25
  12. 12Sau Mau PingKwun Tong District
    23
  13. 13Sha TinSha Tin
    20
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, March 2025 · Hong Kong now

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SmogRank, most polluted cities in Hong Kong, PM2.5, March 2025, smogrank.com/hk/history/2025-03 (accessed 2 Oct 2026).

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