Air Quality Lab — Bissau, Guinea-Bissau
Air Quality Profile·
Bissau reports an annual PM2.5 of 27.1 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Bissau
Guinea-Bissau
Guinea-BissauAnnual Average
PoorWHO annual classification
27.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2929 µg/m³ — Poor
4545 µg/m³ — Unhealthy
3939 µg/m³ — Unhealthy
2929 µg/m³ — Poor
2828 µg/m³ — Poor
1818 µg/m³ — Moderate
1616 µg/m³ — Moderate
1313 µg/m³ — Fair
1616 µg/m³ — Moderate
2929 µg/m³ — Poor
3434 µg/m³ — Poor
2929 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
2929 µg/m³ — Poor
4545 µg/m³ — Unhealthy
3939 µg/m³ — Unhealthy
2929 µg/m³ — Poor
2828 µg/m³ — Poor
1818 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1616 µg/m³ — Moderate
1313 µg/m³ — Fair
1616 µg/m³ — Moderate
2929 µg/m³ — Poor
3434 µg/m³ — Poor
2929 µg/m³ — Poor
Best months: Jul–SepWorst months: Feb–Mar, Nov
Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Guinea-Bissau
Bissau: 27.1 µg/m³. Typical range in Guinea-Bissau: 27.1–28.8 µg/m³. High anchor: Bafatá, 28.8 µg/m³.
3 cities tracked