Air Quality Lab — Heidelberg, Germany
Air Quality Profile
Heidelberg reports an annual PM2.5 of 7.8 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Heidelberg
Germany
GermanyAnnual Average
GoodWHO annual classification
7.8µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
9.79.7 µg/m³ — Good
6.16.1 µg/m³ — Good
7.77.7 µg/m³ — Good
9.19.1 µg/m³ — Good
7.17.1 µg/m³ — Good
8.08.0 µg/m³ — Good
6.86.8 µg/m³ — Good
8.18.1 µg/m³ — Good
7.67.6 µg/m³ — Good
6.36.3 µg/m³ — Good
8.78.7 µg/m³ — Good
8.68.6 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
9.79.7 µg/m³ — Good
6.16.1 µg/m³ — Good
7.77.7 µg/m³ — Good
9.19.1 µg/m³ — Good
7.17.1 µg/m³ — Good
8.08.0 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
6.86.8 µg/m³ — Good
8.18.1 µg/m³ — Good
7.67.6 µg/m³ — Good
6.36.3 µg/m³ — Good
8.78.7 µg/m³ — Good
8.68.6 µg/m³ — Good
Best months: Feb, Jul, OctWorst months: Jan, Apr, Nov
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Germany
Heidelberg: 7.8 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