What is the air quality trend in Sembawang Estate?

Over the past 8 days, Sembawang Estate had an average AQI of 186 based on station measurements. The worst day was 2026-10-15 with AQI 222.

How is Sembawang Estate air quality measured?

Air quality in Sembawang 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 Sembawang Estate, Singapore

Name: Sembawang 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 Sembawang Estate, Singapore.

149

Current AQI
Unhealthy for sensitive groups 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	162	155–170	76.3 µg/m³	88.7	22h	12
2026-10-19	162	130–172	80.5 µg/m³	92.7	24h	12
2026-10-18	161	133–191	77.3 µg/m³	89.6	24h	10
2026-10-17	199	169–238	139.4 µg/m³	163.1	24h	10
2026-10-16	205	182–247	150.3 µg/m³	174.6	24h	9
2026-10-15	222	186–247	171.5 µg/m³	200.0	24h	10
2026-10-14	199	169–281	135.1 µg/m³	157.6	24h	10
2026-10-13	183	183–183	116.8 µg/m³	132.5	1h	10

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