SmogRank / World / Asia / Hong Kong

Most polluted cities in Hong Kong

8 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Wan Chai at 12.6 µg/m³, #206 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#8 Sham Shui Po: 6.8 µg/m³#7 Kwai Chung: 7.3 µg/m³#6 Tuen Mun: 7.4 µg/m³#4 Sha Tin: 7.6 µg/m³#5 Sau Mau Ping: 7.6 µg/m³#3 Tin Shui Wai: 7.7 µg/m³#2 Tai Po: 9.9 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 12.60.8×
  2. 2Tai PoTai Po 9.90.7×
  3. 3Tin Shui WaiYuen Long 7.70.5×
  4. 4Sha TinSha Tin 7.60.5×
  5. 5Sau Mau PingKwun Tong District 7.60.5×
  6. 6Tuen MunTuen Mun 7.40.5×
  7. 7Kwai ChungKwai Tsing District 7.30.5×
  8. 8Sham Shui PoSham Shui Po District 6.80.5×
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. 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/m³Fair
Wong Tai Sin≈ 12 µg/m³Fair
Kowloon City≈ 12 µg/m³Fair
Tseung Kwan O≈ 10 µg/m³Fair
Ma On Shan≈ 9 µg/m³Fair
Yuen Long San Hui≈ 12 µg/m³Fair
Yuen Long≈ 12 µg/m³Fair
Tsing Yi Town≈ 12 µg/m³Fair
Yuen Long Kau Hui≈ 12 µg/m³Fair
Tung Chung≈ 12 µg/m³Fair
Sha Tin Wai≈ 12 µg/m³Fair
Shap Pat Heung≈ 12 µg/m³Fair
Pok Fu Lam≈ 12 µg/m³Fair
Nam Cheong≈ 12 µg/m³Fair
Siu Lek Yuen≈ 9 µg/m³Fair
Tiu Keng Leng≈ 10 µg/m³Fair
LOHAS Park≈ 10 µg/m³Fair
Mei Foo≈ 12 µg/m³Fair
Ping Shan≈ 12 µg/m³Fair
Kai Tak≈ 12 µg/m³Fair
Jordan≈ 12 µg/m³Fair
Pat Heung≈ 12 µg/m³Fair
Whampoa≈ 12 µg/m³Fair
Choi Wan≈ 10 µg/m³Fair
Kennedy Town≈ 12 µg/m³Fair
Mei Foo Sun Chuen≈ 12 µg/m³Fair
Tsz Wan Shan≈ 10 µg/m³Fair
Hang Hau≈ 10 µg/m³Fair
Sai Kung≈ 9 µg/m³Fair
Tai Koo≈ 10 µg/m³Fair
Taikoo Shing≈ 10 µg/m³Fair
Yau Tong≈ 10 µg/m³Fair
Tai Kok Tsui≈ 12 µg/m³Fair
Shek Lei≈ 12 µg/m³Fair
Whampoa Garden≈ 12 µg/m³Fair
Yau Ma Tei≈ 12 µg/m³Fair
Lower Wong Tai Sin Estate (I & II)≈ 12 µg/m³Fair
South Horizons≈ 12 µg/m³Fair
South Horizons (Estate)≈ 12 µg/m³Fair
Leighton Hill≈ 12 µg/m³Fair

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SmogRank, most polluted cities in Hong Kong, PM2.5, last 24 hours to 2 Oct 2026, 05:00 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 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.