What is the air quality trend in Shimotsuke?

Over the past 8 days, Shimotsuke had an average AQI of 52 based on station measurements. The worst day was 2026-10-16 with AQI 67.

How is Shimotsuke air quality measured?

Air quality in Shimotsuke 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 Shimotsuke, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 14 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	35	32–37	8.4 µg/m³	4h	16
2026-10-20	47	29–84	12.1 µg/m³	24h	16
2026-10-19	56	31–159	16.0 µg/m³	24h	15
2026-10-18	34	23–56	8.3 µg/m³	24h	15
2026-10-17	54	34–95	14.8 µg/m³	24h	14
2026-10-16	67	36–154	20.2 µg/m³	24h	12
2026-10-15	64	19–146	19.2 µg/m³	24h	15
2026-10-14	63	33–155	19.0 µg/m³	17h	14

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