SmogRank / Countries / Cameroon / Littoral

Most polluted cities in Littoral, Cameroon

1 measured city ranked by PM2.5, last 7 days. Worst: Douala at 18.6 µg/m³, #170 in the world.

#City µg/m³
1Douala low-cost sensorsLittoral
18.6
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Littoral cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Nkongsamba estimated≈ 5 µg/m³Good
Edéa estimated≈ 4 µg/m³Good
Melong estimated≈ 9 µg/m³Moderate
Loum estimated≈ 7 µg/m³Good
Mbanga estimated≈ 7 µg/m³Good
Manjo estimated≈ 5 µg/m³Good
Njombé estimated≈ 7 µg/m³Good
Souza Gare estimated≈ 7 µg/m³Good
Penja estimated≈ 7 µg/m³Good
Dizangué estimated≈ 4 µg/m³Good

Updated 2026-10-01 08:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.