What is the air quality trend in Shizukuishi?

Over the past 8 days, Shizukuishi had an average AQI of 74 based on station measurements. The worst day was 2026-10-15 with AQI 118.

How is Shizukuishi air quality measured?

Air quality in Shizukuishi 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 Shizukuishi, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

137h

PM2.5 Station

137h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	47	8–159	15.2 µg/m³	10h	2
2026-10-20	54	14–147	16.1 µg/m³	20h	2
2026-10-19	68	13–158	22.2 µg/m³	20h	2
2026-10-18	35	11–80	8.8 µg/m³	16h	2
2026-10-17	101	19–310	48.8 µg/m³	21h	2
2026-10-16	83	27–168	28.4 µg/m³	20h	2
2026-10-15	118	40–321	64.1 µg/m³	20h	3
2026-10-14	88	25–170	33.9 µg/m³	10h	2

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