Air Quality Lab — Thiès, Senegal
Air Quality Profile·
Thiès reports an annual PM2.5 of 35.6 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Thiès
Senegal
SenegalAnnual Average
UnhealthyWHO annual classification
35.6µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3535 µg/m³ — Poor
5050 µg/m³ — Very Unhealthy
3939 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
4040 µg/m³ — Unhealthy
3838 µg/m³ — Unhealthy
3030 µg/m³ — Poor
2828 µg/m³ — Poor
3131 µg/m³ — Poor
3131 µg/m³ — Poor
2929 µg/m³ — Poor
3838 µg/m³ — Unhealthy
Jan
Feb
Mar
Apr
May
Jun
3535 µg/m³ — Poor
5050 µg/m³ — Very Unhealthy
3939 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
4040 µg/m³ — Unhealthy
3838 µg/m³ — Unhealthy
Jul
Aug
Sep
Oct
Nov
Dec
3030 µg/m³ — Poor
2828 µg/m³ — Poor
3131 µg/m³ — Poor
3131 µg/m³ — Poor
2929 µg/m³ — Poor
3838 µg/m³ — Unhealthy
Best months: Jul–Aug, NovWorst months: Feb–Mar, May
Poor25–35 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 Senegal
Thiès: 35.6 µg/m³. Typical range in Senegal: 29.9–34.4 µg/m³. Low anchor: Kayar, 27.3 µg/m³. High anchor: Saint-Louis, 40.3 µg/m³.
44 cities tracked