Air Quality Lab — Siguiri, Guinea
Air Quality Profile·
Siguiri reports an annual PM2.5 of 26.1 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Siguiri
Guinea
GuineaAnnual Average
PoorWHO annual classification
26.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
4141 µg/m³ — Unhealthy
3434 µg/m³ — Poor
2424 µg/m³ — Moderate
3131 µg/m³ — Poor
2828 µg/m³ — Poor
2323 µg/m³ — Moderate
1919 µg/m³ — Moderate
1414 µg/m³ — Fair
1616 µg/m³ — Moderate
2424 µg/m³ — Moderate
3030 µg/m³ — Poor
2929 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
4141 µg/m³ — Unhealthy
3434 µg/m³ — Poor
2424 µg/m³ — Moderate
3131 µg/m³ — Poor
2828 µg/m³ — Poor
2323 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1919 µg/m³ — Moderate
1414 µg/m³ — Fair
1616 µg/m³ — Moderate
2424 µg/m³ — Moderate
3030 µg/m³ — Poor
2929 µg/m³ — Poor
Best months: Jul–SepWorst months: Jan–Feb, Apr
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
Siguiri: 26.1 µg/m³. Typical range in Guinea: 26.1–29.2 µg/m³. Low anchor: Sangarédi, 23.1 µg/m³. High anchor: Labé, 36.3 µg/m³.
30 cities tracked