Cameroon vs Nigeria: Exposure to outdoor air pollution
Cameroon
51.5 µg/m³
in 2024
Nigeria
50 µg/m³
in 2024
Cameroon rank
6th
Nigeria rank
8th
Exposure to outdoor air pollution over time
- Cameroon
- Nigeria
How they compare
Cameroon currently reports 51.5 µg/m³ against 50 µg/m³ in Nigeria, a difference of 1.5 µg/m³.
The two have swapped places 8 times across 27 shared years of data; in 1998 it was Cameroon ahead.
Cameroon ranks 6th and Nigeria ranks 8th of 241 countries.
Across the 4 decades both report, Cameroon averaged higher in 2 and Nigeria in 2.
Head to head by decade
| Decade | Cameroon | Nigeria | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 49.35 µg/m³ | 47.4 µg/m³ | 1.95 µg/m³ | Cameroon |
| 2000s | 49.92 µg/m³ | 53.05 µg/m³ | 3.13 µg/m³ | Nigeria |
| 2010s | 52.21 µg/m³ | 51.67 µg/m³ | 0.54 µg/m³ | Cameroon |
| 2020s | 51.04 µg/m³ | 52.04 µg/m³ | 1 µg/m³ | Nigeria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Cameroon or Nigeria?
- Cameroon, at 51.5 µg/m³ against 50 µg/m³ in Nigeria as of 2024.
- What is the difference in exposure to outdoor air pollution between Cameroon and Nigeria?
- 1.5 µg/m³, with Cameroon ahead.
- How many years of comparable data are there for Cameroon and Nigeria?
- 27 years are reported by both, from 1998 to 2024.
- How do Cameroon and Nigeria rank globally for exposure to outdoor air pollution?
- Cameroon ranks 6th and Nigeria ranks 8th of 241 countries.
- Where does this data come from?
- SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data, published as Exposure to outdoor air pollution. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual population-weighted average concentration of fine particulate matter (PM2.5) in the air, measured in micrograms per cubic meter (µg/m³). Fine particulate matter (PM2.5) are particles with a diameter of 2.5 micrometers or less, which can pose significant health risks.