What is the air quality trend in Hikone?

Over the past 8 days, Hikone had an average AQI of 53 based on station measurements. The worst day was 2026-07-21 with AQI 62.

How is Hikone air quality measured?

Air quality in Hikone 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 Hikone, Japan

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	55	55–55	14.0 µg/m³	—	1h	1
2026-07-21	62	48–71	17.3 µg/m³	40.7	24h	13
2026-07-20	53	35–64	13.5 µg/m³	27.5	24h	15
2026-07-19	45	35–56	10.9 µg/m³	17.2	24h	17
2026-07-18	44	29–60	10.7 µg/m³	20.8	24h	19
2026-07-17	55	37–68	14.0 µg/m³	38.6	24h	17
2026-07-16	55	45–67	14.3 µg/m³	19.0	24h	16
2026-07-15	55	50–62	14.0 µg/m³	27.2	22h	16

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