What is the air quality trend in Wan Chai?

Over the past 8 days, Wan Chai had an average AQI of 41 based on station measurements. The worst day was 2026-08-08 with AQI 139.

How is Wan Chai air quality measured?

Air quality in Wan Chai is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Wan Chai, Hong Kong

Name: Wan Chai Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Wan Chai, Hong Kong.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

158h

PM2.5 Station

158h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	139	132–148	50.9 µg/m³	58.0	4h	2
2026-08-07	54	29–104	14.6 µg/m³	15.6	24h	2
2026-08-06	42	25–59	10.1 µg/m³	10.8	24h	2
2026-08-05	58	34–70	15.7 µg/m³	16.4	24h	2
2026-08-04	17	5–39	4.0 µg/m³	4.4	24h	2
2026-08-03	15	1–44	3.6 µg/m³	3.9	23h	2
2026-08-02	4	1–9	0.7 µg/m³	1.2	23h	2
2026-08-01	5	1–9	1.1 µg/m³	1.7	12h	1

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