What is the air quality trend in Wong Tai Sin?

Over the past 15 days, Wong Tai Sin had an average AQI of 54 based on station measurements. The worst day was 2026-05-22 with AQI 82.

How is Wong Tai Sin air quality measured?

Air quality in Wong Tai Sin 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 Wong Tai Sin, Hong Kong

Name: Wong Tai Sin Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Wong Tai Sin, Hong Kong.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	55	30–77	15.1 µg/m³	15.8	23h	2
2026-05-28	54	42–60	13.7 µg/m³	14.6	24h	2
2026-05-27	50	42–61	12.0 µg/m³	13.0	24h	2
2026-05-26	51	43–62	12.7 µg/m³	13.3	24h	1
2026-05-25	53	42–69	13.9 µg/m³	15.1	24h	2
2026-05-24	68	59–157	20.6 µg/m³	22.4	24h	2
2026-05-23	72	64–81	22.0 µg/m³	23.3	24h	2
2026-05-22	82	64–103	26.6 µg/m³	28.5	23h	1
2026-05-21	80	66–96	25.8 µg/m³	27.7	24h	2
2026-05-20	49	7–81	13.3 µg/m³	14.4	24h	2
2026-05-19	41	9–71	10.9 µg/m³	12.0	24h	2
2026-05-18	44	17–61	10.9 µg/m³	12.8	24h	2
2026-05-17	36	26–49	8.6 µg/m³	9.7	24h	1
2026-05-16	34	15–57	8.2 µg/m³	9.5	24h	2
2026-05-15	52	52–52	12.5 µg/m³	15.8	1h	2

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