What is the air quality trend in Tuen Mun?

Over the past 16 days, Tuen Mun had an average AQI of 78 based on station measurements. The worst day was with AQI .

How is Tuen Mun air quality measured?

Air quality in Tuen Mun 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 Tuen Mun, Hong Kong

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

Historical PM2.5 and AQI trend from monitoring stations near Tuen Mun, Hong Kong.

Current AQI
Moderate

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

299h · 2 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	75	65–82	23.3 µg/m³	24.7	21h	2
2026-04-09	78	72–84	24.8 µg/m³	26.4	15h	2
2026-04-08	75	72–81	23.5 µg/m³	28.5	9h	2
2026-04-07	61	52–72	17.0 µg/m³	19.2	24h	2
2026-04-06	69	61–74	20.5 µg/m³	22.6	17h	2
2026-04-04	90	74–106	30.5 µg/m³	34.3	15h	2
2026-04-03	117	97–137	42.1 µg/m³	49.0	24h	2
2026-04-02	80	40–125	25.7 µg/m³	29.1	21h	2
2026-04-01	66	54–91	19.5 µg/m³	21.0	21h	2
2026-03-31	91	57–115	30.6 µg/m³	34.0	21h	2
2026-03-30	73	38–91	22.8 µg/m³	26.4	11h	2
2026-03-29	73	59–85	22.5 µg/m³	30.5	23h	3
2026-03-28	74	62–97	23.2 µg/m³	31.0	23h	3
2026-03-27	80	75–87	26.0 µg/m³	35.6	24h	3
2026-03-26	79	67–86	25.4 µg/m³	34.4	24h	3
2026-03-25	78	75–82	24.8 µg/m³	33.1	6h	3

Back to Tuen Mun Air Quality