What is the air quality trend in Hamanoichi?

Over the past 15 days, Hamanoichi had an average AQI of 47 based on station measurements. The worst day was 2026-10-11 with AQI 64.

How is Hamanoichi air quality measured?

Air quality in Hamanoichi 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 Hamanoichi, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 9 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	32	20–45	7.6 µg/m³	10h	8
2026-10-20	44	26–76	11.2 µg/m³	24h	7
2026-10-19	61	24–178	20.0 µg/m³	24h	7
2026-10-18	34	18–53	8.1 µg/m³	24h	6
2026-10-17	51	25–133	14.2 µg/m³	24h	7
2026-10-16	59	9–155	17.5 µg/m³	24h	5
2026-10-15	51	19–136	14.2 µg/m³	24h	7
2026-10-14	48	16–207	17.9 µg/m³	24h	6
2026-10-13	59	12–187	19.3 µg/m³	24h	6
2026-10-12	44	29–71	10.9 µg/m³	23h	7
2026-10-11	64	23–278	26.3 µg/m³	24h	5
2026-10-10	43	20–152	11.5 µg/m³	24h	6
2026-10-09	47	23–137	13.2 µg/m³	24h	6
2026-10-08	33	16–51	7.9 µg/m³	24h	8
2026-10-07	35	26–48	8.5 µg/m³	12h	8

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