Liberia vs Morocco: Exposure to outdoor air pollution
Liberia
17.2 µg/m³
in 2024
Morocco
17.4 µg/m³
in 2024
Liberia rank
99th
Morocco rank
98th
Exposure to outdoor air pollution over time
- Liberia
- Morocco
How they compare
Morocco currently reports 17.4 µg/m³ against 17.2 µg/m³ in Liberia, a difference of 0.2 µg/m³.
The two have swapped places 8 times across 27 shared years of data; in 1998 it was Morocco ahead.
Liberia ranks 99th and Morocco ranks 98th of 241 countries.
Morocco has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Liberia | Morocco | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 16.95 µg/m³ | 17 µg/m³ | 0.05 µg/m³ | Morocco |
| 2000s | 16.13 µg/m³ | 17.59 µg/m³ | 1.46 µg/m³ | Morocco |
| 2010s | 16.55 µg/m³ | 17.47 µg/m³ | 0.92 µg/m³ | Morocco |
| 2020s | 16.18 µg/m³ | 17.66 µg/m³ | 1.48 µg/m³ | Morocco |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Liberia or Morocco?
- Morocco, at 17.4 µg/m³ against 17.2 µg/m³ in Liberia as of 2024.
- What is the difference in exposure to outdoor air pollution between Liberia and Morocco?
- 0.2 µg/m³, with Morocco ahead.
- How many years of comparable data are there for Liberia and Morocco?
- 27 years are reported by both, from 1998 to 2024.
- How do Liberia and Morocco rank globally for exposure to outdoor air pollution?
- Liberia ranks 99th and Morocco ranks 98th 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.