Air Quality Lab — Keflavík, Iceland
Air Quality Profile·
Keflavík reports an annual PM2.5 of 3.7 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
Keflavík
Iceland
IcelandAnnual Average
ExcellentWHO annual classification
3.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3.03.0 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
4.94.9 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
2.92.9 µg/m³ — Excellent
2.62.6 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
3.03.0 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
3.53.5 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
4.14.1 µg/m³ — Excellent
Jul
Aug
Sep
Oct
Nov
Dec
3.93.9 µg/m³ — Excellent
4.94.9 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
2.92.9 µg/m³ — Excellent
2.62.6 µg/m³ — Excellent
3.13.1 µg/m³ — Excellent
Best months: Jan, Oct–NovWorst months: Apr–May, Aug
Excellent0–5 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Iceland
Keflavík: 3.7 µg/m³. Typical range in Iceland: 3.7–3.9 µg/m³. High anchor: Reykjavík, 5.0 µg/m³.
4 cities tracked