Air Quality Lab — Medellín, Colombia
Air Quality Profile
Medellín reports an annual PM2.5 of 19.4 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Medellín
Colombia
ColombiaAnnual Average
ModerateWHO annual classification
19.4µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2222 µg/m³ — Moderate
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
2020 µg/m³ — Moderate
1818 µg/m³ — Moderate
1616 µg/m³ — Moderate
1717 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2222 µg/m³ — Moderate
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
2020 µg/m³ — Moderate
1818 µg/m³ — Moderate
1616 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1717 µg/m³ — Moderate
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
Best months: May–JulWorst months: Jan–Mar
Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Colombia
Medellín: 19.4 µg/m³. Typical range in Colombia: 14.9–17.6 µg/m³. Low anchor: Pasto, 11.7 µg/m³. High anchor: Barranquilla, 23.2 µg/m³.
293 cities tracked