What is the air quality trend in Higashihiroshima?

Over the past 15 days, Higashihiroshima had an average AQI of 46 based on station measurements. The worst day was 2026-10-11 with AQI 68.

How is Higashihiroshima air quality measured?

Air quality in Higashihiroshima 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 Higashihiroshima, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

334h

PM2.5 Station

334h · 5 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	27	18–35	6.4 µg/m³	12h	12
2026-10-20	41	19–177	12.7 µg/m³	24h	11
2026-10-19	40	21–107	10.4 µg/m³	24h	11
2026-10-18	34	25–53	8.3 µg/m³	24h	13
2026-10-17	42	25–66	10.4 µg/m³	24h	10
2026-10-16	56	31–110	15.9 µg/m³	24h	8
2026-10-15	44	19–156	12.7 µg/m³	24h	10
2026-10-14	61	23–167	19.8 µg/m³	24h	10
2026-10-13	58	27–161	17.8 µg/m³	24h	9
2026-10-12	46	29–109	11.7 µg/m³	24h	9
2026-10-11	68	30–174	23.0 µg/m³	24h	9
2026-10-10	41	28–53	9.8 µg/m³	24h	8
2026-10-09	50	24–145	13.8 µg/m³	24h	10
2026-10-08	41	17–63	10.1 µg/m³	24h	13
2026-10-07	46	35–61	11.2 µg/m³	10h	13

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