What is the air quality trend in Hanawa?

Over the past 8 days, Hanawa had an average AQI of 78 based on station measurements. The worst day was 2026-10-15 with AQI 151.

How is Hanawa air quality measured?

Air quality in Hanawa 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 Hanawa, Japan

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

107h

PM2.5 Station

107h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	38	12–96	10.7 µg/m³	7h	2
2026-10-20	46	5–110	13.4 µg/m³	16h	1
2026-10-19	93	20–160	34.1 µg/m³	17h	1
2026-10-18	34	17–60	8.4 µg/m³	11h	1
2026-10-17	78	25–310	34.0 µg/m³	16h	1
2026-10-16	85	13–209	34.9 µg/m³	15h	2
2026-10-15	151	25–451	98.8 µg/m³	18h	2
2026-10-14	101	50–159	36.5 µg/m³	7h	1

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