What is the air quality trend in Komae?

Over the past 8 days, Komae had an average AQI of 42 based on station measurements. The worst day was with AQI .

How is Komae air quality measured?

Air quality in Komae 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 Komae, Japan

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Trend

157h

PM2.5 Trend

157h · 15 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-17	37	32–39	8.8 µg/m³	11.2	6h	18
2026-04-16	30	25–40	7.2 µg/m³	10.3	24h	22
2026-04-15	34	23–46	8.2 µg/m³	12.6	24h	22
2026-04-14	53	44–61	13.3 µg/m³	21.3	24h	21
2026-04-13	49	30–56	12.0 µg/m³	19.8	17h	18
2026-04-12	44	35–52	10.6 µg/m³	16.4	24h	20
2026-04-11	46	28–59	11.4 µg/m³	17.2	24h	21
2026-04-10	44	24–55	10.8 µg/m³	19.5	14h	20

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