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 12.3 µg/m³, #210 in the world.

North DistrictIslandsSouthern DistrictCentral and WesternEastern DistrictTsuen WanTai Po: 1 measured citySha Tin: 1 measured citySai Kung DistrictKwun Tong District: 1 measured cityKowloon CityYau Tsim Mong DistrictSham Shui Po District: 1 measured cityTuen Mun: 1 measured cityYuen Long: 1 measured cityWong Tai Sin District#8 Sham Shui Po: 7.0 µg/m³#7 Kwai Chung: 7.3 µg/m³#4 Tuen Mun: 7.6 µg/m³#5 Tin Shui Wai: 7.6 µg/m³#6 Sha Tin: 7.6 µg/m³#3 Sau Mau Ping: 7.9 µg/m³#2 Tai Po: 9.7 µg/m³#1 Wan Chai: 12.3 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 12.3 µg/m³ 15 µg/m³ WHO 24-hour guideline0
Every measured city in Hong Kong, 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 20.8×
  2. 2Tai PoTai Po 10.6×
  3. 3Sau Mau PingKwun Tong District 10.5×
  4. 4Tuen MunTuen Mun 10.5×
  5. 5Tin Shui WaiYuen Long 10.5×
  6. 6Sha TinSha Tin 10.5×
  7. 7Kwai ChungKwai Tsing District 10.5×
  8. 8Sham Shui PoSham Shui Po District 10.5×
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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/m³Low risk
Wong Tai Sin≈ 12 µg/m³Low risk
Kowloon City≈ 12 µg/m³Low risk
Tseung Kwan O≈ 10 µg/m³Low risk
Ma On Shan≈ 9 µg/m³Low risk
Yuen Long San Hui≈ 12 µg/m³Low risk
Yuen Long≈ 12 µg/m³Low risk
Tsing Yi Town≈ 12 µg/m³Low risk
Yuen Long Kau Hui≈ 12 µg/m³Low risk
Tung Chung≈ 12 µg/m³Low risk
Sha Tin Wai≈ 12 µg/m³Low risk
Shap Pat Heung≈ 12 µg/m³Low risk
Pok Fu Lam≈ 12 µg/m³Low risk
Nam Cheong≈ 12 µg/m³Low risk
Siu Lek Yuen≈ 9 µg/m³Low risk
Tiu Keng Leng≈ 10 µg/m³Low risk
LOHAS Park≈ 10 µg/m³Low risk
Mei Foo≈ 12 µg/m³Low risk
Ping Shan≈ 12 µg/m³Low risk
Kai Tak≈ 12 µg/m³Low risk
Jordan≈ 12 µg/m³Low risk
Pat Heung≈ 12 µg/m³Low risk
Whampoa≈ 12 µg/m³Low risk
Choi Wan≈ 10 µg/m³Low risk
Kennedy Town≈ 12 µg/m³Low risk
Mei Foo Sun Chuen≈ 12 µg/m³Low risk
Tsz Wan Shan≈ 10 µg/m³Low risk
Hang Hau≈ 10 µg/m³Low risk
Sai Kung≈ 9 µg/m³Low risk
Tai Koo≈ 10 µg/m³Low risk
Taikoo Shing≈ 10 µg/m³Low risk
Yau Tong≈ 10 µg/m³Low risk
Tai Kok Tsui≈ 12 µg/m³Low risk
Shek Lei≈ 12 µg/m³Low risk
Whampoa Garden≈ 12 µg/m³Low risk
Yau Ma Tei≈ 12 µg/m³Low risk
Lower Wong Tai Sin Estate (I & II)≈ 12 µg/m³Low risk
South Horizons≈ 12 µg/m³Low risk
South Horizons (Estate)≈ 12 µg/m³Low risk
Leighton Hill≈ 12 µg/m³Low risk

Use this board

SmogRank, most polluted cities in Hong Kong, PM2.5, last 24 hours to 2 Oct 2026, 06:00 UTC, smogrank.com/hk.

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.

Regions

Kwai Tsing District 1Kwun Tong District 1Sha Tin 1Sham Shui Po District 1Tai Po 1Tuen Mun 1Wan Chai 1Yuen Long 1

Measured cities in each region, last 24 hours.

Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.