What is the air quality trend in Hashimoto?

Over the past 8 days, Hashimoto had an average AQI of 64 based on station measurements. The worst day was 2026-10-15 with AQI 89.

How is Hashimoto air quality measured?

Air quality in Hashimoto 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 Hashimoto, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 57 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	42	30–77	10.8 µg/m³	9h	56
2026-10-20	54	28–126	15.2 µg/m³	24h	54
2026-10-19	63	39–108	18.4 µg/m³	24h	50
2026-10-18	37	24–64	9.0 µg/m³	24h	50
2026-10-17	69	34–124	21.1 µg/m³	24h	53
2026-10-16	79	49–164	25.9 µg/m³	24h	45
2026-10-15	89	40–162	30.9 µg/m³	24h	55
2026-10-14	84	38–151	27.5 µg/m³	13h	39

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