What is the air quality in Iruma?

Iruma, Japan has an annual US AQI of 60 (Reasonable) and average PM2.5 of 13.1 µg/m³, ranking #2032 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Iruma?

January is typically the cleanest month (AQI 52) and July the most polluted (AQI 76).

Where does Iruma's air quality data come from?

PM2.5: 1998–2025 (monitors 2013–2025, satellite 1998–2013, 2024; 2025 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Iruma, Japan — Air Quality & Clean City Guide 2026

Iruma Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2032	Iruma, Japan	Asia	AQI 60	PM2.5 13.1 µg/m³