Air Quality Lab — Calais, France
Air Quality Profile·
Calais reports an annual PM2.5 of 9.1 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Calais
France
FranceAnnual Average
GoodWHO annual classification
9.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
8.68.6 µg/m³ — Good
8.18.1 µg/m³ — Good
9.59.5 µg/m³ — Good
1717 µg/m³ — Moderate
9.69.6 µg/m³ — Good
9.59.5 µg/m³ — Good
7.17.1 µg/m³ — Good
7.67.6 µg/m³ — Good
8.48.4 µg/m³ — Good
6.46.4 µg/m³ — Good
8.18.1 µg/m³ — Good
9.29.2 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
8.68.6 µg/m³ — Good
8.18.1 µg/m³ — Good
9.59.5 µg/m³ — Good
1717 µg/m³ — Moderate
9.69.6 µg/m³ — Good
9.59.5 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
7.17.1 µg/m³ — Good
7.67.6 µg/m³ — Good
8.48.4 µg/m³ — Good
6.46.4 µg/m³ — Good
8.18.1 µg/m³ — Good
9.29.2 µg/m³ — Good
Best months: Jul–Aug, OctWorst months: Apr–Jun
Good5–10 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across France
Calais: 9.1 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