What is the air quality trend in Hong Kah?

Over the past 8 days, Hong Kah had an average AQI of 191 based on station measurements. The worst day was 2026-10-15 with AQI 229.

How is Hong Kah air quality measured?

Air quality in Hong Kah 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 Hong Kah, Singapore

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

Historical PM2.5 and AQI trend from monitoring stations near Hong Kah, Singapore.

155

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 11 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	163	156–178	79.3 µg/m³	89.9	21h	12
2026-10-19	161	113–179	78.9 µg/m³	89.7	24h	12
2026-10-18	161	128–190	76.3 µg/m³	87.8	24h	10
2026-10-17	211	191–241	159.8 µg/m³	183.7	24h	10
2026-10-16	208	190–240	155.9 µg/m³	179.5	24h	9
2026-10-15	229	200–280	178.8 µg/m³	206.0	24h	10
2026-10-14	216	172–307	155.5 µg/m³	179.2	24h	10
2026-10-13	184	178–189	118.8 µg/m³	133.9	2h	10

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