What is the air quality trend in Itogawa?

Over the past 8 days, Itogawa had an average AQI of 55 based on station measurements. The worst day was 2026-10-14 with AQI 77.

How is Itogawa air quality measured?

Air quality in Itogawa 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 Itogawa, Japan

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 17 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	32	22–40	7.8 µg/m³	7h	16
2026-10-20	47	25–81	12.0 µg/m³	24h	16
2026-10-19	57	30–153	16.0 µg/m³	24h	16
2026-10-18	41	23–142	10.9 µg/m³	24h	16
2026-10-17	64	37–159	18.7 µg/m³	24h	19
2026-10-16	63	41–137	18.1 µg/m³	24h	14
2026-10-15	61	32–107	17.9 µg/m³	24h	17
2026-10-14	77	24–170	28.5 µg/m³	14h	14

Back to Itogawa Air Quality