What is the air quality trend in Bunkyo?

Over the past 3 days, Bunkyo had an average AQI of 39 based on station measurements. The worst day was with AQI .

How is Bunkyo air quality measured?

Air quality in Bunkyo 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 Bunkyo, Japan

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

48h · 15 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-11	49	29–60	12.3 µg/m³	18.6	19h	20
2026-04-10	35	15–55	8.6 µg/m³	17.3	24h	19
2026-04-09	33	26–40	7.9 µg/m³	18.2	5h	21

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