What is the air quality trend in Ōbu?

Over the past 7 days, Ōbu had an average AQI of 37 based on station measurements. The worst day was with AQI .

How is Ōbu air quality measured?

Air quality in Ōbu 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 Ōbu, Japan

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

Air Quality Index Trend

120h

PM2.5 Trend

120h · 8 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-12	30	19–43	7.2 µg/m³	9.8	16h	7
2026-04-11	40	23–56	9.8 µg/m³	13.8	23h	7
2026-04-10	29	14–44	6.9 µg/m³	12.8	21h	7
2026-04-09	31	23–37	7.4 µg/m³	13.2	14h	7
2026-04-08	39	34–43	9.4 µg/m³	11.0	7h	7
2026-04-07	34	18–64	8.4 µg/m³	11.9	22h	7
2026-04-06	58	51–64	15.1 µg/m³	23.8	17h	7

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