Air Quality Lab — Ntoum, Gabon
Air Quality Profile·
Ntoum reports an annual PM2.5 of 19.7 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Ntoum
Gabon
GabonAnnual Average
ModerateWHO annual classification
19.7µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2626 µg/m³ — Poor
3535 µg/m³ — Poor
2222 µg/m³ — Moderate
1212 µg/m³ — Fair
1717 µg/m³ — Moderate
2424 µg/m³ — Moderate
2525 µg/m³ — Poor
1919 µg/m³ — Moderate
1313 µg/m³ — Fair
1212 µg/m³ — Fair
9.49.4 µg/m³ — Good
2424 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2626 µg/m³ — Poor
3535 µg/m³ — Poor
2222 µg/m³ — Moderate
1212 µg/m³ — Fair
1717 µg/m³ — Moderate
2424 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2525 µg/m³ — Poor
1919 µg/m³ — Moderate
1313 µg/m³ — Fair
1212 µg/m³ — Fair
9.49.4 µg/m³ — Good
2424 µg/m³ — Moderate
Best months: Apr, Oct–NovWorst months: Jan–Feb, Jul
Good5–10 µg/m³Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across Gabon
Ntoum: 19.7 µg/m³. Typical range in Gabon: 19.4–28.1 µg/m³. Low anchor: Port-Gentil, 16.0 µg/m³. High anchor: Franceville, 33.1 µg/m³.
13 cities tracked