What is the air quality trend in Okunoya?

Over the past 8 days, Okunoya had an average AQI of 35 based on station measurements. The worst day was 2026-09-01 with AQI 43.

How is Okunoya air quality measured?

Air quality in Okunoya 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 Okunoya, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 16 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	25	19–34	6.0 µg/m³	10h	22
2026-09-04	28	15–59	6.9 µg/m³	24h	21
2026-09-03	30	12–157	8.5 µg/m³	24h	18
2026-09-02	40	19–165	11.8 µg/m³	24h	19
2026-09-01	43	23–104	11.1 µg/m³	24h	19
2026-08-31	42	19–98	10.7 µg/m³	24h	14
2026-08-30	42	17–171	12.8 µg/m³	24h	17
2026-08-29	36	26–57	8.7 µg/m³	11h	18

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