Guinea vs Lesotho: Exposure to outdoor air pollution
Guinea
23.9 µg/m³
in 2024
Lesotho
24.5 µg/m³
in 2024
Guinea rank
66th
Lesotho rank
63rd
Exposure to outdoor air pollution over time
- Guinea
- Lesotho
How they compare
Lesotho currently reports 24.5 µg/m³ against 23.9 µg/m³ in Guinea, a difference of 0.6 µg/m³.
The two have swapped places 7 times across 27 shared years of data; in 1998 it was Guinea ahead.
Guinea ranks 66th and Lesotho ranks 63rd of 241 countries.
Across the 4 decades both report, Guinea averaged higher in 3 and Lesotho in 1.
Head to head by decade
| Decade | Guinea | Lesotho | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 30.45 µg/m³ | 17.2 µg/m³ | 13.25 µg/m³ | Guinea |
| 2000s | 26.16 µg/m³ | 24.4 µg/m³ | 1.76 µg/m³ | Guinea |
| 2010s | 25.91 µg/m³ | 24.26 µg/m³ | 1.65 µg/m³ | Guinea |
| 2020s | 23.38 µg/m³ | 25.72 µg/m³ | 2.34 µg/m³ | Lesotho |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Guinea or Lesotho?
- Lesotho, at 24.5 µg/m³ against 23.9 µg/m³ in Guinea as of 2024.
- What is the difference in exposure to outdoor air pollution between Guinea and Lesotho?
- 0.6 µg/m³, with Lesotho ahead.
- How many years of comparable data are there for Guinea and Lesotho?
- 27 years are reported by both, from 1998 to 2024.
- How do Guinea and Lesotho rank globally for exposure to outdoor air pollution?
- Guinea ranks 66th and Lesotho ranks 63rd 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.