What is the air quality trend in Yasu?

Over the past 8 days, Yasu had an average AQI of 45 based on station measurements. The worst day was 2026-08-01 with AQI 57.

How is Yasu air quality measured?

Air quality in Yasu 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 Yasu, Japan

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 41 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	34	30–40	8.2 µg/m³	5h	36
2026-08-07	35	23–56	8.6 µg/m³	23h	33
2026-08-06	52	38–68	13.3 µg/m³	24h	25
2026-08-05	51	27–143	13.5 µg/m³	24h	21
2026-08-04	44	34–59	10.7 µg/m³	24h	26
2026-08-03	44	28–62	10.9 µg/m³	24h	27
2026-08-02	48	37–59	11.6 µg/m³	24h	32
2026-08-01	57	47–72	14.8 µg/m³	17h	31

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