What is the air quality trend in Yuen Long San Hui?

Over the past 8 days, Yuen Long San Hui had an average AQI of 43 based on station measurements. The worst day was 2026-08-08 with AQI 136.

How is Yuen Long San Hui air quality measured?

Air quality in Yuen Long San Hui 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 Yuen Long San Hui, Hong Kong

Name: Yuen Long San Hui Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Yuen Long San Hui, Hong Kong.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

160h

PM2.5 Station

160h · 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	136	126–147	49.7 µg/m³	58.3	8h	2
2026-08-07	53	27–111	14.6 µg/m³	15.6	24h	2
2026-08-06	47	33–70	11.8 µg/m³	12.3	24h	2
2026-08-05	61	41–71	17.0 µg/m³	17.6	24h	2
2026-08-04	23	7–48	5.5 µg/m³	5.8	24h	2
2026-08-03	16	1–49	3.7 µg/m³	4.0	23h	2
2026-08-02	4	1–9	1.0 µg/m³	1.4	23h	2
2026-08-01	5	1–8	1.1 µg/m³	1.7	10h	1

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