Eritrea vs Tanzania: Exposure to outdoor air pollution
Eritrea
25 µg/m³
in 2024
Tanzania
24.6 µg/m³
in 2024
Eritrea rank
60th
Tanzania rank
62nd
Exposure to outdoor air pollution over time
- Eritrea
- Tanzania
How they compare
Eritrea currently reports 25 µg/m³ against 24.6 µg/m³ in Tanzania, a difference of 0.4 µg/m³.
Across all 27 years both countries report, Eritrea has been ahead every year.
Eritrea ranks 60th and Tanzania ranks 62nd of 241 countries.
Eritrea has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Eritrea | Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 22.75 µg/m³ | 13.9 µg/m³ | 8.85 µg/m³ | Eritrea |
| 2000s | 26.9 µg/m³ | 22.37 µg/m³ | 4.53 µg/m³ | Eritrea |
| 2010s | 28.66 µg/m³ | 22.68 µg/m³ | 5.98 µg/m³ | Eritrea |
| 2020s | 25.54 µg/m³ | 22.26 µg/m³ | 3.28 µg/m³ | Eritrea |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Eritrea or Tanzania?
- Eritrea, at 25 µg/m³ against 24.6 µg/m³ in Tanzania as of 2024.
- What is the difference in exposure to outdoor air pollution between Eritrea and Tanzania?
- 0.4 µg/m³, with Eritrea ahead.
- How many years of comparable data are there for Eritrea and Tanzania?
- 27 years are reported by both, from 1998 to 2024.
- How do Eritrea and Tanzania rank globally for exposure to outdoor air pollution?
- Eritrea ranks 60th and Tanzania ranks 62nd 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.