What is the air quality trend in Thomson?

Over the past 14 days, Thomson had an average AQI of 181 based on station measurements. The worst day was 2026-10-15 with AQI 218.

How is Thomson air quality measured?

Air quality in Thomson 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 Thomson, Singapore

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

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

154

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 10 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-20	162	155–170	77.1 µg/m³	89.8	23h	11
2026-10-19	163	134–176	80.9 µg/m³	93.2	24h	11
2026-10-18	159	130–185	74.8 µg/m³	86.9	24h	9
2026-10-17	195	169–229	134.1 µg/m³	155.7	24h	9
2026-10-16	203	180–236	147.2 µg/m³	169.5	24h	8
2026-10-15	218	186–239	166.9 µg/m³	192.8	24h	9
2026-10-14	197	169–271	132.0 µg/m³	153.4	24h	9
2026-10-13	180	170–195	112.2 µg/m³	127.2	24h	9
2026-10-12	186	160–200	123.1 µg/m³	138.0	24h	8
2026-10-11	169	158–180	90.4 µg/m³	103.9	24h	6
2026-10-10	173	159–197	98.7 µg/m³	113.2	24h	6
2026-10-09	182	170–192	115.3 µg/m³	130.1	24h	6
2026-10-08	178	141–202	107.7 µg/m³	122.6	24h	6
2026-10-07	174	144–198	100.3 µg/m³	112.9	24h	6

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