What is the air quality trend in Toufen?

Over the past 7 days, Toufen had an average AQI of 58 based on station measurements. The worst day was with AQI .

How is Toufen air quality measured?

Air quality in Toufen 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 Toufen, Taiwan

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

Air Quality Index Trend

133h

PM2.5 Trend

133h · 2 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-04-14	52	45–61	13.2 µg/m³	23h	2
2026-04-13	61	57–68	17.0 µg/m³	16h	2
2026-04-12	68	63–73	20.3 µg/m³	24h	2
2026-04-11	68	63–74	20.0 µg/m³	24h	2
2026-04-10	60	56–67	16.5 µg/m³	24h	2
2026-04-09	60	59–67	16.5 µg/m³	16h	2
2026-04-08	40	32–46	9.5 µg/m³	6h	2

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