Air Quality Lab — Ouidah, Benin
Air Quality Profile·
Ouidah reports an annual PM2.5 of 31.3 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Ouidah
Benin
BeninAnnual Average
PoorWHO annual classification
31.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4747 µg/m³ — Unhealthy
5656 µg/m³ — Very Unhealthy
3030 µg/m³ — Poor
2929 µg/m³ — Poor
1919 µg/m³ — Moderate
1919 µg/m³ — Moderate
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
2020 µg/m³ — Moderate
2121 µg/m³ — Moderate
3333 µg/m³ — Poor
5353 µg/m³ — Very Unhealthy
Jan
Feb
Mar
Apr
May
Jun
4747 µg/m³ — Unhealthy
5656 µg/m³ — Very Unhealthy
3030 µg/m³ — Poor
2929 µg/m³ — Poor
1919 µg/m³ — Moderate
1919 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2424 µg/m³ — Moderate
2424 µg/m³ — Moderate
2020 µg/m³ — Moderate
2121 µg/m³ — Moderate
3333 µg/m³ — Poor
5353 µg/m³ — Very Unhealthy
Best months: May–Jun, SepWorst months: Jan–Feb, Dec
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Benin
Ouidah: 31.3 µg/m³. Typical range in Benin: 31.2–37.4 µg/m³. Low anchor: Djidja, 28.2 µg/m³. High anchor: Parakou, 42.0 µg/m³.
58 cities tracked