Air Quality Lab — Bilbao, Spain
Air Quality Profile
Bilbao reports an annual PM2.5 of 8.7 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Bilbao
Spain
SpainAnnual Average
GoodWHO annual classification
8.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1111 µg/m³ — Fair
1010 µg/m³ — Fair
1010 µg/m³ — Fair
9.19.1 µg/m³ — Good
8.48.4 µg/m³ — Good
8.98.9 µg/m³ — Good
9.29.2 µg/m³ — Good
8.58.5 µg/m³ — Good
6.86.8 µg/m³ — Good
6.86.8 µg/m³ — Good
8.68.6 µg/m³ — Good
7.07.0 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
1111 µg/m³ — Fair
1010 µg/m³ — Fair
1010 µg/m³ — Fair
9.19.1 µg/m³ — Good
8.48.4 µg/m³ — Good
8.98.9 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
9.29.2 µg/m³ — Good
8.58.5 µg/m³ — Good
6.86.8 µg/m³ — Good
6.86.8 µg/m³ — Good
8.68.6 µg/m³ — Good
7.07.0 µg/m³ — Good
Best months: Sep–Oct, DecWorst months: Jan–Mar
Good5–10 µg/m³Fair10–15 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Spain
Bilbao: 8.7 µg/m³. Typical range in Spain: 8.2–9.8 µg/m³. Low anchor: Soria, 6.2 µg/m³. High anchor: Barcelona, 13.7 µg/m³.
437 cities tracked