Air Quality Lab — Rennes, France
Air Quality Profile
Rennes reports an annual PM2.5 of 8.3 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Rennes
France
FranceAnnual Average
GoodWHO annual classification
8.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1111 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
8.18.1 µg/m³ — Good
6.46.4 µg/m³ — Good
6.46.4 µg/m³ — Good
6.16.1 µg/m³ — Good
5.35.3 µg/m³ — Good
7.77.7 µg/m³ — Good
7.77.7 µg/m³ — Good
9.39.3 µg/m³ — Good
9.59.5 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
1111 µg/m³ — Fair
1111 µg/m³ — Fair
1111 µg/m³ — Fair
8.18.1 µg/m³ — Good
6.46.4 µg/m³ — Good
6.46.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
6.16.1 µg/m³ — Good
5.35.3 µg/m³ — Good
7.77.7 µg/m³ — Good
7.77.7 µg/m³ — Good
9.39.3 µg/m³ — Good
9.59.5 µg/m³ — Good
Best months: May, Jul–AugWorst months: Jan–Mar
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across France
Rennes: 8.3 µg/m³. Typical range in France: 7.5–8.6 µg/m³. Low anchor: Saint-Leu, 6.0 µg/m³. High anchor: Paris, 10.1 µg/m³.
318 cities tracked