What is the air quality trend in Washinomiya?

Over the past 8 days, Washinomiya had an average AQI of 52 based on station measurements. The worst day was 2026-07-21 with AQI 59.

How is Washinomiya air quality measured?

Air quality in Washinomiya 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 Washinomiya, Japan

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

170h

PM2.5 Station

170h · 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	57	7–76	17.0 µg/m³	39.1	5h	48
2026-07-21	59	47–69	15.8 µg/m³	32.1	24h	47
2026-07-20	53	40–60	13.4 µg/m³	20.7	24h	59
2026-07-19	45	36–54	10.8 µg/m³	12.6	24h	61
2026-07-18	44	29–54	10.6 µg/m³	9.7	24h	63
2026-07-17	53	32–63	13.2 µg/m³	25.8	24h	63
2026-07-16	56	51–65	14.7 µg/m³	40.0	24h	64
2026-07-15	53	46–58	13.4 µg/m³	31.9	21h	61

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