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 12.7 µg/m³, #216 in the world.

← Wan Chai 12.7 WHO 24-hour guideline

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

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.

City	7-day estimate	Band
Hong Kong	≈ 12 µg/m³	Moderate
Wong Tai Sin	≈ 12 µg/m³	Moderate
Kowloon City	≈ 12 µg/m³	Moderate
Tseung Kwan O	≈ 10 µg/m³	Moderate
Ma On Shan	≈ 9 µg/m³	Moderate
Yuen Long San Hui	≈ 12 µg/m³	Moderate
Yuen Long	≈ 12 µg/m³	Moderate
Tsing Yi Town	≈ 12 µg/m³	Moderate
Yuen Long Kau Hui	≈ 12 µg/m³	Moderate
Tung Chung	≈ 12 µg/m³	Moderate
Sha Tin Wai	≈ 12 µg/m³	Moderate
Shap Pat Heung	≈ 12 µg/m³	Moderate
Pok Fu Lam	≈ 12 µg/m³	Moderate
Nam Cheong	≈ 12 µg/m³	Moderate
Siu Lek Yuen	≈ 9 µg/m³	Moderate
Tiu Keng Leng	≈ 10 µg/m³	Moderate
LOHAS Park	≈ 10 µg/m³	Moderate
Mei Foo	≈ 12 µg/m³	Moderate
Ping Shan	≈ 12 µg/m³	Moderate
Kai Tak	≈ 12 µg/m³	Moderate
Jordan	≈ 12 µg/m³	Moderate
Pat Heung	≈ 12 µg/m³	Moderate
Whampoa	≈ 12 µg/m³	Moderate
Choi Wan	≈ 10 µg/m³	Moderate
Kennedy Town	≈ 12 µg/m³	Moderate
Mei Foo Sun Chuen	≈ 12 µg/m³	Moderate
Tsz Wan Shan	≈ 10 µg/m³	Moderate
Hang Hau	≈ 10 µg/m³	Moderate
Sai Kung	≈ 9 µg/m³	Moderate
Tai Koo	≈ 10 µg/m³	Moderate
Taikoo Shing	≈ 10 µg/m³	Moderate
Yau Tong	≈ 10 µg/m³	Moderate
Tai Kok Tsui	≈ 12 µg/m³	Moderate
Shek Lei	≈ 12 µg/m³	Moderate
Whampoa Garden	≈ 12 µg/m³	Moderate
Yau Ma Tei	≈ 12 µg/m³	Moderate
Lower Wong Tai Sin Estate (I & II)	≈ 12 µg/m³	Moderate
South Horizons	≈ 12 µg/m³	Moderate
South Horizons (Estate)	≈ 12 µg/m³	Moderate
Leighton Hill	≈ 12 µg/m³	Moderate

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SmogRank, most polluted cities in Hong Kong, PM2.5, last 24 hours to 2 Oct 2026, 02:00 UTC, smogrank.com/hk.

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Regions

Measured cities in each region (30 days).

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