Air Quality Lab — Alta, Norway
Air Quality Profile·
Alta reports an annual PM2.5 of 0.0 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
Alta
Norway
NorwayAnnual Average
ExcellentWHO annual classification
0.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
Jul
Aug
Sep
Oct
Nov
Dec
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
0.00.0 µg/m³ — Excellent
Best months: Jan–MarWorst months: Oct–Dec
Excellent0–5 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Norway
Alta: 0.0 µg/m³. Typical range in Norway: 4.3–5.8 µg/m³. High anchor: Oslo, 6.5 µg/m³.
34 cities tracked