Sierra Leone vs Sri Lanka: Particulate matter exposure in 1990 vs. 2017
Sierra Leone
22.46 micrograms per cubic meter
in 2023
Sri Lanka
22.68 micrograms per cubic meter
in 2023
Sierra Leone rank
69th
Sri Lanka rank
68th
Particulate matter exposure in 1990 vs. 2017 over time
- Sierra Leone
- Sri Lanka
How they compare
Sri Lanka currently reports 22.68 micrograms per cubic meter against 22.46 micrograms per cubic meter in Sierra Leone, a difference of 0.22 micrograms per cubic meter.
The two have swapped places 4 times across 34 shared years of data; in 1990 it was Sri Lanka ahead.
Sierra Leone ranks 69th and Sri Lanka ranks 68th of 200 countries.
Sri Lanka has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Sierra Leone | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 22.82 micrograms per cubic meter | 32.77 micrograms per cubic meter | 9.95 micrograms per cubic meter | Sri Lanka |
| 2000s | 23.1 micrograms per cubic meter | 30.32 micrograms per cubic meter | 7.22 micrograms per cubic meter | Sri Lanka |
| 2010s | 23.06 micrograms per cubic meter | 25.77 micrograms per cubic meter | 2.71 micrograms per cubic meter | Sri Lanka |
| 2020s | 22.22 micrograms per cubic meter | 22.65 micrograms per cubic meter | 0.4318 micrograms per cubic meter | Sri Lanka |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher particulate matter exposure in 1990 vs. 2017, Sierra Leone or Sri Lanka?
- Sri Lanka, at 22.68 micrograms per cubic meter against 22.46 micrograms per cubic meter in Sierra Leone as of 2023.
- What is the difference in particulate matter exposure in 1990 vs. 2017 between Sierra Leone and Sri Lanka?
- 0.22 micrograms per cubic meter, with Sri Lanka ahead.
- How many years of comparable data are there for Sierra Leone and Sri Lanka?
- 34 years are reported by both, from 1990 to 2023.
- How do Sierra Leone and Sri Lanka rank globally for particulate matter exposure in 1990 vs. 2017?
- Sierra Leone ranks 69th and Sri Lanka ranks 68th of 200 countries.
- Where does this data come from?
- Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data, published as Particulate matter exposure in 1990 vs. 2017. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Population-weighted average level of exposure to concentrations of suspended particles measuring less than 2.5 microns in diameter. Exposure is measured in micrograms per cubic meter (µg/m³).