SmogRank / World / Hong Kong / October 2026

Most polluted cities in Hong Kong, October 2026

9 cities in Hong Kong ranked by their average PM2.5 so far (1 of 31 days). Worst: Wan Chai at 14.5 µg/m³, #242 of 1,630 cities in the world. Cleanest: Victoria at 4.8. A city needs measurements on 70% of the days to be ranked.

← Wan Chai 14.5 µg/m³ 20 µg/m³0
Every city in Hong Kong ranked for October 2026, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Wan ChaiWan Chai
    61
  2. 2Tai PoTai Po
    52
  3. 3Tin Shui WaiYuen Long
    44
  4. 3FanlingNorth District
    44
  5. 5Sau Mau PingKwun Tong District
    41
  6. 5Kwai ChungKwai Tsing District
    41
  7. 7Tuen MunTuen Mun
    38
  8. 8Mong KokYau Tsim Mong District
    33
  9. 9VictoriaCentral and Western
    27
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, October 2026 · Hong Kong now

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SmogRank, most polluted cities in Hong Kong, PM2.5, October 2026 (so far), smogrank.com/hk/history/2026-10 (accessed 2 Oct 2026).

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