SmogRank / World / Asia / Hong Kong

Most polluted cities in Hong Kong

9 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Wan Chai at 12.6 µg/m³, #212 in the world.

North District: 1 measured cityIslands: 1 measured citySouthern DistrictCentral and Western: 1 measured cityEastern DistrictTsuen Wan: 1 measured cityTai Po: 1 measured citySha Tin: 1 measured citySai Kung DistrictKwun Tong District: 1 measured cityKowloon CityYau Tsim Mong District: 1 measured citySham Shui Po District: 1 measured cityTuen MunYuen Long: 1 measured cityWong Tai Sin District#9 Sham Shui Po: 6.6 µg/m³#8 Fanling: 7.0 µg/m³#6 Tuen Mun: 7.3 µg/m³#7 Kwai Chung: 7.3 µg/m³#5 Sau Mau Ping: 7.6 µg/m³#4 Sha Tin: 7.7 µg/m³#3 Tin Shui Wai: 7.9 µg/m³#2 Tai Po: 10.0 µg/m³#1 Wan Chai: 12.6 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city, or a region to zoom in.
← Wan Chai 12.6 WHO 24-hour guideline
Every measured city in Hong Kong, 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 220.8×
  2. 2Tai PoTai Po 170.7×
  3. 3Tin Shui WaiYuen Long 130.5×
  4. 4Sha TinSha Tin 130.5×
  5. 5Sau Mau PingKwun Tong District 130.5×
  6. 6Tuen MunTuen Mun 120.5×
  7. 7Kwai ChungKwai Tsing District 120.5×
  8. 8FanlingNorth District 120.5×
  9. 9Sham Shui PoSham Shui Po District 120.4×
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

Estimated: cities without a monitor

Hong Kong cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Hong Kong≈ 12 µg/m³Good
Wong Tai Sin≈ 12 µg/m³Good
Kowloon City≈ 12 µg/m³Good
Tseung Kwan O≈ 10 µg/m³Good
Ma On Shan≈ 9 µg/m³Good
Yuen Long San Hui≈ 12 µg/m³Good
Yuen Long≈ 12 µg/m³Good
Tsing Yi Town≈ 12 µg/m³Good
Yuen Long Kau Hui≈ 12 µg/m³Good
Tung Chung≈ 12 µg/m³Good
Sha Tin Wai≈ 12 µg/m³Good
Shap Pat Heung≈ 12 µg/m³Good
Pok Fu Lam≈ 12 µg/m³Good
Nam Cheong≈ 12 µg/m³Good
Siu Lek Yuen≈ 9 µg/m³Good
Tiu Keng Leng≈ 10 µg/m³Good
LOHAS Park≈ 10 µg/m³Good
Mei Foo≈ 12 µg/m³Good
Ping Shan≈ 12 µg/m³Good
Kai Tak≈ 12 µg/m³Good
Jordan≈ 12 µg/m³Good
Pat Heung≈ 12 µg/m³Good
Whampoa≈ 12 µg/m³Good
Choi Wan≈ 10 µg/m³Good
Kennedy Town≈ 12 µg/m³Good
Mei Foo Sun Chuen≈ 12 µg/m³Good
Tsz Wan Shan≈ 10 µg/m³Good
Hang Hau≈ 10 µg/m³Good
Sai Kung≈ 9 µg/m³Good
Tai Koo≈ 10 µg/m³Good
Taikoo Shing≈ 10 µg/m³Good
Yau Tong≈ 10 µg/m³Good
Tai Kok Tsui≈ 12 µg/m³Good
Shek Lei≈ 12 µg/m³Good
Whampoa Garden≈ 12 µg/m³Good
Yau Ma Tei≈ 12 µg/m³Good
Lower Wong Tai Sin Estate (I & II)≈ 12 µg/m³Good
South Horizons≈ 12 µg/m³Good
South Horizons (Estate)≈ 12 µg/m³Good
Leighton Hill≈ 12 µg/m³Good

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SmogRank, most polluted cities in Hong Kong, PM2.5, last 24 hours to 2 Oct 2026, 04:00 UTC, smogrank.com/hk.

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Regions

Central and Western 1Islands 1Kwai Tsing District 1Kwun Tong District 1North District 1Sha Tin 1Sham Shui Po District 1Tai Po 1Tsuen Wan 1Wan Chai 1Yau Tsim Mong District 1Yuen Long 1

Measured cities in each region (30 days).

Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the India AQI PM2.5 sub-index.