What is the air quality trend in Miaoli?

Over the past 15 days, Miaoli had an average AQI of 54 based on station measurements. The worst day was 2026-05-30 with AQI 64.

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.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	64	55–72	18.3 µg/m³	11h	13
2026-05-29	59	48–83	16.1 µg/m³	24h	13
2026-05-28	57	46–89	15.0 µg/m³	24h	13
2026-05-27	51	36–74	12.9 µg/m³	24h	14
2026-05-26	52	40–87	13.2 µg/m³	24h	14
2026-05-25	60	42–162	17.3 µg/m³	24h	14
2026-05-24	56	45–62	14.4 µg/m³	24h	13
2026-05-23	58	43–74	15.4 µg/m³	24h	15
2026-05-22	55	40–69	14.4 µg/m³	24h	15
2026-05-21	57	35–116	15.5 µg/m³	24h	14
2026-05-20	55	39–163	15.1 µg/m³	24h	16
2026-05-19	53	40–71	13.4 µg/m³	24h	15
2026-05-18	55	43–69	14.4 µg/m³	24h	14
2026-05-17	44	23–59	10.8 µg/m³	24h	12
2026-05-16	40	22–53	9.6 µg/m³	13h	13

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