Air Quality Lab — Clausthal-Zellerfeld, Germany
Air Quality Profile·
Clausthal-Zellerfeld reports an annual PM2.5 of 5.4 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Clausthal-Zellerfeld
Germany
GermanyAnnual Average
GoodWHO annual classification
5.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
5.15.1 µg/m³ — Good
5.45.4 µg/m³ — Good
5.85.8 µg/m³ — Good
7.47.4 µg/m³ — Good
5.85.8 µg/m³ — Good
6.46.4 µg/m³ — Good
4.94.9 µg/m³ — Excellent
4.84.8 µg/m³ — Excellent
5.05.0 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
5.15.1 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
5.15.1 µg/m³ — Good
5.45.4 µg/m³ — Good
5.85.8 µg/m³ — Good
7.47.4 µg/m³ — Good
5.85.8 µg/m³ — Good
6.46.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
4.94.9 µg/m³ — Excellent
4.84.8 µg/m³ — Excellent
5.05.0 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
5.15.1 µg/m³ — Good
Best months: Aug, Oct–NovWorst months: Apr–Jun
Excellent0–5 µg/m³Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Germany
Clausthal-Zellerfeld: 5.4 µg/m³. Typical range in Germany: 7.6–8.6 µg/m³. High anchor: Berlin, 9.8 µg/m³.
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