What is the air quality trend in Kawachi-Nagano?

Over the past 8 days, Kawachi-Nagano had an average AQI of 66 based on station measurements. The worst day was 2026-10-14 with AQI 97.

How is Kawachi-Nagano air quality measured?

Air quality in Kawachi-Nagano 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 Kawachi-Nagano, Japan

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

Historical PM2.5 and AQI trend from monitoring stations near Kawachi-Nagano, Japan.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 44 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	48	32–71	12.7 µg/m³	4h	56
2026-10-20	51	29–76	13.0 µg/m³	24h	53
2026-10-19	62	37–102	17.8 µg/m³	24h	48
2026-10-18	42	27–82	10.7 µg/m³	24h	54
2026-10-17	70	34–124	21.4 µg/m³	24h	51
2026-10-16	77	45–155	24.5 µg/m³	24h	44
2026-10-15	88	58–160	29.8 µg/m³	24h	50
2026-10-14	97	43–155	33.9 µg/m³	17h	44

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