What is the air quality trend in Hitachiomiya?

Over the past 8 days, Hitachiomiya had an average AQI of 29 based on station measurements. The worst day was 2026-08-31 with AQI 36.

How is Hitachiomiya air quality measured?

Air quality in Hitachiomiya 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 Hitachiomiya, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 10 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	24	19–32	5.8 µg/m³	10h	13
2026-09-04	22	13–55	5.3 µg/m³	24h	12
2026-09-03	21	14–30	5.0 µg/m³	24h	11
2026-09-02	36	15–168	10.6 µg/m³	24h	11
2026-09-01	33	20–65	8.1 µg/m³	24h	11
2026-08-31	36	14–129	9.3 µg/m³	24h	8
2026-08-30	31	13–47	7.4 µg/m³	24h	10
2026-08-29	33	23–48	8.0 µg/m³	11h	10

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