What is the air quality trend in MacPherson?

Over the past 8 days, MacPherson had an average AQI of 196 based on station measurements. The worst day was 2026-10-15 with AQI 241.

How is MacPherson air quality measured?

Air quality in MacPherson 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 MacPherson, Singapore

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

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

163

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 10 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	169	169–169	90.5 µg/m³	104.2	1h	10
2026-10-20	175	159–226	99.5 µg/m³	112.9	24h	10
2026-10-19	177	141–237	104.8 µg/m³	118.5	24h	11
2026-10-18	167	128–243	86.7 µg/m³	98.3	24h	9
2026-10-17	207	175–259	148.5 µg/m³	173.9	24h	9
2026-10-16	228	178–289	175.4 µg/m³	203.9	24h	8
2026-10-15	241	203–303	190.7 µg/m³	223.5	24h	9
2026-10-14	210	179–298	151.6 µg/m³	177.0	22h	9

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