What is the air quality trend in Discovery Bay?

Over the past 8 days, Discovery Bay had an average AQI of 65 based on station measurements. The worst day was 2026-05-22 with AQI 91.

How is Discovery Bay air quality measured?

Air quality in Discovery Bay 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 Discovery Bay, Hong Kong

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

Historical PM2.5 and AQI trend from monitoring stations near Discovery Bay, Hong Kong.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	57	30–75	15.5 µg/m³	16.0	18h	2
2026-05-28	56	46–60	14.4 µg/m³	15.0	24h	2
2026-05-27	53	46–59	13.1 µg/m³	13.7	24h	2
2026-05-26	52	43–62	12.9 µg/m³	13.5	24h	1
2026-05-25	59	48–75	16.0 µg/m³	16.7	24h	2
2026-05-24	74	65–120	23.2 µg/m³	24.4	24h	2
2026-05-23	80	67–88	25.9 µg/m³	27.3	24h	2
2026-05-22	91	88–97	31.0 µg/m³	34.7	6h	2

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