What is the air quality trend in Tatsuno?

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

How is Tatsuno air quality measured?

Air quality in Tatsuno 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 Tatsuno, Japan

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 26 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-21	40	32–51	9.6 µg/m³	6h	22
2026-10-20	46	26–124	12.3 µg/m³	24h	22
2026-10-19	49	28–92	12.8 µg/m³	24h	21
2026-10-18	33	25–52	7.9 µg/m³	24h	20
2026-10-17	52	34–77	13.6 µg/m³	24h	21
2026-10-16	65	41–125	19.1 µg/m³	24h	19
2026-10-15	60	30–163	18.2 µg/m³	24h	21
2026-10-14	61	28–132	18.4 µg/m³	15h	20

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