Air Quality Lab — Isle of Lewis, United Kingdom
Air Quality Profile·
Isle of Lewis reports an annual PM2.5 of 4.3 µg/m³. That's below the WHO 2021 annual guideline of 5 µg/m³ — cleaner than most cities on the continent.
Isle of Lewis
United Kingdom
United KingdomAnnual Average
ExcellentWHO annual classification
4.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3.63.6 µg/m³ — Excellent
6.46.4 µg/m³ — Good
5.25.2 µg/m³ — Good
4.64.6 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
5.45.4 µg/m³ — Good
2.62.6 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
3.73.7 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
Jan
Feb
Mar
Apr
May
Jun
3.63.6 µg/m³ — Excellent
6.46.4 µg/m³ — Good
5.25.2 µg/m³ — Good
4.64.6 µg/m³ — Excellent
4.54.5 µg/m³ — Excellent
5.45.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
2.62.6 µg/m³ — Excellent
3.63.6 µg/m³ — Excellent
3.73.7 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
4.24.2 µg/m³ — Excellent
3.93.9 µg/m³ — Excellent
Best months: Jan, Jul–AugWorst 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 United Kingdom
Isle of Lewis: 4.3 µg/m³. Typical range in United Kingdom: 7.0–7.8 µg/m³. High anchor: London, 8.6 µg/m³.
494 cities tracked