What is the air quality in Brest?

Brest, France has an annual US AQI of 47 (Reasonable) and average PM2.5 of 9.1 µg/m³, ranking #573 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Brest?

August is typically the cleanest month (AQI 38) and March the most polluted (AQI 58).

Where does Brest's air quality data come from?

PM2.5: 1998–2026 (monitors 2011–2026, satellite 1998–2012; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Brest, France — Air Quality & Clean City Guide 2026

Brest Air Quality Data

Global rank	City	Continent	AQI	PM2.5
573	Brest, France	Europe	AQI 47	PM2.5 9.1 µg/m³