What is the air quality trend in Hikarigaoka?

Over the past 12 days, Hikarigaoka had an average AQI of 36 based on station measurements. The worst day was 2026-08-01 with AQI 100.

How is Hikarigaoka air quality measured?

Air quality in Hikarigaoka 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 Hikarigaoka, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

185h

PM2.5 Station

185h · 3 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	18	18–18	4.4 µg/m³	1h	3
2026-08-07	7	1–18	1.8 µg/m³	5h	1
2026-08-06	10	1–40	2.3 µg/m³	15h	1
2026-08-05	20	1–39	4.9 µg/m³	18h	1
2026-08-04	26	6–63	6.5 µg/m³	24h	1
2026-08-03	19	5–38	4.5 µg/m³	23h	1
2026-08-02	36	1–103	10.7 µg/m³	17h	1
2026-08-01	100	68–121	34.6 µg/m³	24h	1
2026-07-31	79	54–103	25.4 µg/m³	24h	1
2026-07-30	57	12–82	16.5 µg/m³	24h	1
2026-07-29	20	6–35	4.9 µg/m³	9h	1
2026-07-26	40	40–40	9.6 µg/m³	1h	1

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