What is the air quality trend in Oi Man Estate?

Over the past 8 days, Oi Man Estate had an average AQI of 75 based on station measurements. The worst day was 2026-10-14 with AQI 110.

How is Oi Man Estate air quality measured?

Air quality in Oi Man Estate 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 Oi Man Estate, Hong Kong

Name: Oi Man Estate Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Oi Man Estate, Hong Kong.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	90	74–98	30.4 µg/m³	33.9	6h	2
2026-10-20	54	32–70	14.1 µg/m³	15.4	24h	2
2026-10-19	62	30–84	18.6 µg/m³	19.9	24h	2
2026-10-18	45	28–64	11.3 µg/m³	12.3	24h	2
2026-10-17	57	39–75	15.3 µg/m³	16.7	24h	2
2026-10-16	83	59–102	27.3 µg/m³	30.7	24h	2
2026-10-15	99	79–125	34.2 µg/m³	38.6	24h	2
2026-10-14	110	91–132	39.0 µg/m³	44.7	17h	2

Back to Oi Man Estate Air Quality