What is the air quality trend in Taichung?

Over the past 14 days, Taichung had an average AQI of 71 based on station measurements. The worst day was 2026-10-15 with AQI 97.

How is Taichung air quality measured?

Air quality in Taichung 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 Taichung, Taiwan

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

Historical PM2.5 and AQI trend from monitoring stations near Taichung, Taiwan.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

332h

PM2.5 Station

332h · 16 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	76	56–177	25.6 µg/m³	24h	11
2026-10-19	60	42–89	16.8 µg/m³	24h	10
2026-10-18	70	45–114	21.2 µg/m³	24h	16
2026-10-17	70	31–137	21.2 µg/m³	24h	10
2026-10-16	77	44–123	24.3 µg/m³	23h	6
2026-10-15	97	38–145	33.1 µg/m³	24h	7
2026-10-14	76	22–149	23.9 µg/m³	24h	6
2026-10-13	77	30–157	24.7 µg/m³	24h	10
2026-10-12	73	41–95	22.6 µg/m³	24h	9
2026-10-11	75	53–153	23.6 µg/m³	24h	9
2026-10-10	81	28–182	28.3 µg/m³	24h	9
2026-10-09	64	33–147	18.9 µg/m³	24h	8
2026-10-08	67	25–143	20.9 µg/m³	24h	21
2026-10-07	40	22–98	10.7 µg/m³	21h	20

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