What is the air quality trend in Boon Lay?

Over the past 8 days, Boon Lay had an average AQI of 192 based on station measurements. The worst day was 2026-10-15 with AQI 231.

How is Boon Lay air quality measured?

Air quality in Boon Lay 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 Boon Lay, Singapore

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

Historical PM2.5 and AQI trend from monitoring stations near Boon Lay, Singapore.

152

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 8 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	164	155–179	80.1 µg/m³	90.8	21h	9
2026-10-19	161	111–180	79.5 µg/m³	90.1	24h	9
2026-10-18	161	127–191	76.7 µg/m³	88.2	24h	7
2026-10-17	213	192–242	161.7 µg/m³	185.9	24h	7
2026-10-16	210	191–240	157.9 µg/m³	182.3	24h	6
2026-10-15	231	201–286	181.2 µg/m³	209.1	24h	7
2026-10-14	217	171–310	156.9 µg/m³	181.0	24h	7
2026-10-13	185	180–190	121.3 µg/m³	136.9	2h	6

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