What is the air quality trend in Shirakawa?

Over the past 8 days, Shirakawa had an average AQI of 40 based on station measurements. The worst day was 2026-10-21 with AQI 52.

How is Shirakawa air quality measured?

Air quality in Shirakawa 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 Shirakawa, Japan

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

151h

PM2.5 Station

151h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	52	42–59	13.3 µg/m³	4h	2
2026-10-20	39	13–65	9.8 µg/m³	21h	2
2026-10-19	34	12–59	8.3 µg/m³	23h	2
2026-10-18	34	12–85	8.6 µg/m³	23h	2
2026-10-17	47	26–68	11.8 µg/m³	22h	2
2026-10-16	43	19–71	10.6 µg/m³	20h	2
2026-10-15	32	17–63	7.8 µg/m³	23h	2
2026-10-14	42	15–141	11.6 µg/m³	15h	2

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