Air Quality Lab — Alcalá de Henares, Spain
Air Quality Profile·
Alcalá de Henares reports an annual PM2.5 of 9.0 µg/m³. That's close to the WHO 2021 annual guideline (5 µg/m³) and well inside historically healthy ranges.
Alcalá de Henares
Spain
SpainAnnual Average
GoodWHO annual classification
9.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1212 µg/m³ — Fair
1111 µg/m³ — Fair
8.58.5 µg/m³ — Good
7.57.5 µg/m³ — Good
7.97.9 µg/m³ — Good
8.18.1 µg/m³ — Good
1111 µg/m³ — Fair
9.69.6 µg/m³ — Good
7.67.6 µg/m³ — Good
7.87.8 µg/m³ — Good
7.87.8 µg/m³ — Good
9.89.8 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
1212 µg/m³ — Fair
1111 µg/m³ — Fair
8.58.5 µg/m³ — Good
7.57.5 µg/m³ — Good
7.97.9 µg/m³ — Good
8.18.1 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
1111 µg/m³ — Fair
9.69.6 µg/m³ — Good
7.67.6 µg/m³ — Good
7.87.8 µg/m³ — Good
7.87.8 µg/m³ — Good
9.89.8 µg/m³ — Good
Best months: Apr, Sep–OctWorst months: Jan–Feb, Jul
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
Alcalá de Henares: 9.0 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