What is the air quality trend in Nagato?

Over the past 8 days, Nagato had an average AQI of 61 based on station measurements. The worst day was 2026-10-16 with AQI 85.

How is Nagato air quality measured?

Air quality in Nagato 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 Nagato, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 9 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	44	22–144	13.0 µg/m³	8h	11
2026-10-20	44	23–83	11.3 µg/m³	24h	9
2026-10-19	63	21–184	20.9 µg/m³	24h	8
2026-10-18	36	20–57	8.7 µg/m³	24h	10
2026-10-17	68	25–161	22.1 µg/m³	24h	7
2026-10-16	85	29–200	34.3 µg/m³	24h	7
2026-10-15	74	28–204	28.8 µg/m³	24h	8
2026-10-14	75	18–185	27.7 µg/m³	13h	7

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