Air Quality Lab — Grimstad, Norway
Air Quality Profile·
Grimstad reports an annual PM2.5 of 4.9 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
Grimstad
Norway
NorwayAnnual Average
ExcellentWHO annual classification
4.9µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
5.15.1 µg/m³ — Good
8.18.1 µg/m³ — Good
6.56.5 µg/m³ — Good
4.54.5 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
5.15.1 µg/m³ — Good
3.73.7 µg/m³ — Excellent
4.74.7 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
5.15.1 µg/m³ — Good
8.18.1 µg/m³ — Good
6.56.5 µg/m³ — Good
4.54.5 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
5.15.1 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
3.73.7 µg/m³ — Excellent
4.74.7 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
4.64.6 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
Best months: May, Jul, SepWorst months: Feb–Mar, 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 Norway
Grimstad: 4.9 µg/m³. Typical range in Norway: 4.3–5.8 µg/m³. Low anchor: Alta, 0.0 µg/m³. High anchor: Oslo, 6.5 µg/m³.
34 cities tracked