What is the air quality in Nishitōkyō?

Nishitōkyō, Japan has an annual US AQI of 60 (Reasonable) and average PM2.5 of 13.6 µg/m³, ranking #2047 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Nishitōkyō?

January is typically the cleanest month (AQI 55) and May the most polluted (AQI 69).

Where does Nishitōkyō's air quality data come from?

PM2.5: 1998–2026 (monitors 2013–2026, satellite 1998–2013; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Nishitōkyō, Japan — Air Quality & Clean City Guide 2026

Nishitōkyō Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2047	Nishitōkyō, Japan	Asia	AQI 60	PM2.5 13.6 µg/m³