What is the air quality in Ōta?

Ōta, Japan has an annual US AQI of 61 (Polluted) and average PM2.5 of 13.5 µg/m³, ranking #2189 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Ōta?

January is typically the cleanest month (AQI 54) and May the most polluted (AQI 73).

Where does Ōta's air quality data come from?

PM2.5: 1998–2026 (monitors 2012–2026, satellite 1998–2012; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Ōta, Japan — Air Quality & Clean City Guide 2026

Ōta Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2189	Ōta, Japan	Asia	AQI 61	PM2.5 13.5 µg/m³