What is the air quality trend in Iwata?

Over the past 8 days, Iwata had an average AQI of 49 based on station measurements. The worst day was 2026-10-14 with AQI 78.

How is Iwata air quality measured?

Air quality in Iwata 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 Iwata, Japan

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

164h

PM2.5 Station

164h · 27 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	30	24–35	7.2 µg/m³	10.0	6h	25
2026-10-20	41	27–74	10.2 µg/m³	14.8	24h	21
2026-10-19	50	27–139	13.8 µg/m³	14.4	24h	17
2026-10-18	33	21–45	7.8 µg/m³	9.1	24h	24
2026-10-17	45	28–68	11.1 µg/m³	16.1	24h	16
2026-10-16	61	35–157	17.6 µg/m³	13.4	23h	17
2026-10-15	58	28–158	17.6 µg/m³	9.4	24h	17
2026-10-14	78	30–152	25.7 µg/m³	8.0	15h	16

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