What is the air quality in Hitachi?

Hitachi, Japan has an annual US AQI of 52 (Reasonable) and average PM2.5 of 10.7 µg/m³, ranking #973 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Hitachi?

December is typically the cleanest month (AQI 43) and May the most polluted (AQI 61).

Where does Hitachi's air quality data come from?

PM2.5: 1998–2026 (monitors 2014–2026, satellite 1998–2013; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Hitachi, Japan — Air Quality & Clean City Guide 2026

Hitachi Air Quality Data

Global rank	City	Continent	AQI	PM2.5
973	Hitachi, Japan	Asia	AQI 52	PM2.5 10.7 µg/m³