What is the air quality trend in Yūki?

Over the past 8 days, Yūki had an average AQI of 45 based on station measurements. The worst day was 2026-10-16 with AQI 57.

How is Yūki air quality measured?

Air quality in Yūki 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 Yūki, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 29 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	33	28–38	7.9 µg/m³	6h	35
2026-10-20	46	30–108	12.3 µg/m³	24h	33
2026-10-19	46	33–93	11.8 µg/m³	24h	32
2026-10-18	37	27–61	8.9 µg/m³	24h	35
2026-10-17	47	28–83	12.2 µg/m³	24h	34
2026-10-16	57	34–106	15.6 µg/m³	24h	30
2026-10-15	50	35–70	12.9 µg/m³	24h	31
2026-10-14	51	27–156	14.5 µg/m³	15h	30

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