What is the air quality trend in Itako?

Over the past 15 days, Itako had an average AQI of 58 based on station measurements. The worst day was 2026-10-15 with AQI 75.

How is Itako air quality measured?

Air quality in Itako 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 Itako, Japan

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 17 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	48	26–166	15.1 µg/m³	13h	16
2026-10-20	45	26–62	11.2 µg/m³	24h	16
2026-10-19	61	29–112	17.6 µg/m³	24h	15
2026-10-18	37	26–55	8.9 µg/m³	24h	15
2026-10-17	61	32–141	17.6 µg/m³	24h	14
2026-10-16	69	35–154	20.8 µg/m³	24h	14
2026-10-15	75	31–142	23.5 µg/m³	24h	15
2026-10-14	74	32–185	26.8 µg/m³	24h	13
2026-10-13	71	47–134	21.5 µg/m³	24h	14
2026-10-12	61	34–156	17.9 µg/m³	24h	14
2026-10-11	64	34–92	18.9 µg/m³	24h	12
2026-10-10	72	32–162	23.9 µg/m³	24h	15
2026-10-09	59	28–117	17.4 µg/m³	24h	15
2026-10-08	36	27–56	8.6 µg/m³	24h	23
2026-10-07	38	32–48	9.0 µg/m³	8h	22

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