What is the air quality trend in Amakusa?

Over the past 3 days, Amakusa had an average AQI of 41 based on station measurements. The worst day was 2026-10-19 with AQI 46.

How is Amakusa air quality measured?

Air quality in Amakusa 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 Amakusa, Japan

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

Historical PM2.5 and AQI trend from monitoring stations near Amakusa, Japan.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

45h

PM2.5 Station

45h · 13 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	34	26–43	8.2 µg/m³	11h	15
2026-10-20	45	25–136	11.8 µg/m³	24h	14
2026-10-19	46	35–63	11.6 µg/m³	10h	14

Back to Amakusa Air Quality