What is the air quality trend in Kōta?

Over the past 8 days, Kōta had an average AQI of 40 based on station measurements. The worst day was 2026-08-01 with AQI 53.

How is Kōta air quality measured?

Air quality in Kōta 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 Kōta, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 35 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	30	25–35	7.3 µg/m³	13.5	5h	29
2026-08-07	33	24–53	7.9 µg/m³	16.2	23h	27
2026-08-06	41	25–58	10.1 µg/m³	14.3	24h	18
2026-08-05	42	29–56	10.2 µg/m³	17.7	24h	18
2026-08-04	42	34–53	10.0 µg/m³	16.6	24h	26
2026-08-03	38	25–57	9.3 µg/m³	16.4	24h	27
2026-08-02	48	35–60	11.8 µg/m³	24.1	24h	26
2026-08-01	53	48–60	13.2 µg/m³	18.7	16h	28

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