What is the air quality trend in Tatsunochō-tominaga?

Over the past 8 days, Tatsunochō-tominaga had an average AQI of 50 based on station measurements. The worst day was 2026-10-16 with AQI 65.

How is Tatsunochō-tominaga air quality measured?

Air quality in Tatsunochō-tominaga 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 Tatsunochō-tominaga, Japan

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

Historical PM2.5 and AQI trend from monitoring stations near Tatsunochō-tominaga, Japan.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 24 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	41	32–51	9.8 µg/m³	7h	22
2026-10-20	46	27–122	12.2 µg/m³	24h	22
2026-10-19	49	28–92	12.8 µg/m³	24h	21
2026-10-18	33	25–52	7.8 µg/m³	24h	21
2026-10-17	52	34–76	13.5 µg/m³	24h	21
2026-10-16	65	41–121	18.9 µg/m³	24h	19
2026-10-15	60	31–162	17.8 µg/m³	24h	21
2026-10-14	61	27–132	18.3 µg/m³	15h	20

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