What is the air quality trend in Kawaguchi?

Over the past 8 days, Kawaguchi had an average AQI of 30 based on station measurements. The worst day was 2026-08-01 with AQI 103.

How is Kawaguchi air quality measured?

Air quality in Kawaguchi 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 Kawaguchi, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

121h

PM2.5 Station

121h · 3 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	4.4 µg/m³	—	1h	3
2026-08-07	16	1–52	4.0 µg/m³	1.3	7h	1
2026-08-06	10	1–40	2.5 µg/m³	2.8	15h	2
2026-08-05	20	1–39	4.9 µg/m³	5.6	18h	1
2026-08-04	26	6–63	6.5 µg/m³	6.7	24h	1
2026-08-03	18	5–33	4.4 µg/m³	4.8	23h	1
2026-08-02	36	1–103	10.8 µg/m³	11.7	17h	1
2026-08-01	103	68–121	36.1 µg/m³	42.8	16h	1

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