What is the air quality trend in Matsudo?

Over the past 8 days, Matsudo had an average AQI of 30 based on station measurements. The worst day was 2026-08-01 with AQI 101.

How is Matsudo air quality measured?

Air quality in Matsudo 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 Matsudo, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

123h

PM2.5 Station

123h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	18	18–18	4.2 µg/m³	—	1h	2
2026-08-07	16	1–52	3.9 µg/m³	1.3	6h	1
2026-08-06	10	1–40	2.4 µg/m³	2.8	15h	2
2026-08-05	20	1–39	4.9 µg/m³	5.6	18h	1
2026-08-04	25	6–38	6.0 µg/m³	6.7	23h	1
2026-08-03	18	5–31	4.4 µg/m³	4.7	23h	2
2026-08-02	36	1–103	10.9 µg/m³	11.7	17h	2
2026-08-01	101	68–121	35.3 µg/m³	41.7	20h	1

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