What is the air quality trend in Miaoli?

Over the past 7 days, Miaoli had an average AQI of 48 based on station measurements. The worst day was with AQI .

How is Miaoli air quality measured?

Air quality in Miaoli 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 Miaoli, Taiwan

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

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

109

Current AQI
Unhealthy for sensitive groups

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

103h · 2 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-04-11	65	64–67	18.9 µg/m³	6h	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	38	30–46	9.1 µg/m³	8h	2
2026-04-07	31	21–41	7.5 µg/m³	24h	2
2026-04-06	57	48–65	14.9 µg/m³	18h	2
2026-04-04	31	30–33	7.5 µg/m³	7h	2

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