What is the air quality trend in Yao?

Over the past 8 days, Yao had an average AQI of 62 based on station measurements. The worst day was 2026-10-14 with AQI 84.

How is Yao air quality measured?

Air quality in Yao 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 Yao, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 87 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	42	34–62	10.6 µg/m³	6h	84
2026-10-20	50	32–81	13.1 µg/m³	24h	78
2026-10-19	59	39–77	16.3 µg/m³	24h	72
2026-10-18	41	29–69	10.1 µg/m³	24h	81
2026-10-17	64	38–111	18.5 µg/m³	24h	76
2026-10-16	76	43–153	24.0 µg/m³	24h	62
2026-10-15	83	51–151	27.0 µg/m³	24h	77
2026-10-14	84	32–152	27.5 µg/m³	15h	62

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