SmogRank / Countries / Hong Kong / Wan Chai

Most polluted cities in Wan Chai, Hong Kong

1 measured city ranked by PM2.5, last 7 days. Worst: Wan Chai at 18.3 µg/m³, #177 in the world.

#City µg/m³
1Wan Chai Wan Chai
18.3
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Wan Chai 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
Leighton Hill estimated≈ 12 µg/m³Moderate

Updated 2026-10-01 08:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.