What is the air quality trend in Saitama?

Over the past 7 days, Saitama had an average AQI of 39 based on station measurements. The worst day was with AQI .

How is Saitama air quality measured?

Air quality in Saitama 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 Saitama, Japan

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

128h · 1 station

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-12	45	36–58	11.0 µg/m³	15.1	11h	14
2026-04-11	46	29–60	11.8 µg/m³	17.2	24h	14
2026-04-10	39	18–64	9.8 µg/m³	16.5	24h	13
2026-04-09	31	13–40	7.4 µg/m³	13.0	18h	12
2026-04-08	35	27–43	8.4 µg/m³	9.9	9h	12
2026-04-07	29	8–61	7.2 µg/m³	11.1	24h	12
2026-04-06	52	42–61	13.2 µg/m³	19.7	18h	14

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