Air Quality Lab — Köln, Germany
Air Quality Profile
Köln reports an annual PM2.5 of 9.6 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Köln
Germany
GermanyAnnual Average
GoodWHO annual classification
9.6µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
7.77.7 µg/m³ — Good
1010 µg/m³ — Good
1111 µg/m³ — Fair
8.78.7 µg/m³ — Good
9.69.6 µg/m³ — Good
7.87.8 µg/m³ — Good
8.78.7 µg/m³ — Good
1010 µg/m³ — Good
9.39.3 µg/m³ — Good
9.39.3 µg/m³ — Good
1111 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
7.77.7 µg/m³ — Good
1010 µg/m³ — Good
1111 µg/m³ — Fair
8.78.7 µg/m³ — Good
9.69.6 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
7.87.8 µg/m³ — Good
8.78.7 µg/m³ — Good
1010 µg/m³ — Good
9.39.3 µg/m³ — Good
9.39.3 µg/m³ — Good
1111 µg/m³ — Fair
Best months: Feb, May, JulWorst months: Jan, Apr, Dec
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 Germany
Köln: 9.6 µg/m³. Typical range in Germany: 7.6–8.6 µg/m³. Low anchor: Clausthal-Zellerfeld, 5.4 µg/m³. High anchor: Berlin, 9.8 µg/m³.
869 cities tracked