SmogRank / World / Asia / Hong Kong / Tsuen Wan

Most polluted cities in Tsuen Wan, Hong Kong

0 measured cities, last 24 hours.

Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.

No city has enough measurements for this window yet.

Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. 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

Tsuen Wan 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
Sham Tseng≈ 12 µg/m³Moderate
Discovery Park≈ 12 µg/m³Moderate
Ting Kau≈ 12 µg/m³Moderate
Yeung Uk Tsuen≈ 12 µg/m³Moderate

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SmogRank, most polluted cities in Tsuen Wan, Hong Kong, PM2.5, last 24 hours to 2 Oct 2026, 03:00 UTC, smogrank.com/hk/region/tsuen-wan.

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Updated 2026-10-02 03:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.