Sierra Leone vs Sri Lanka: PM2.5 air pollution, mean annual exposure
PM2.5 air pollution, mean annual exposure 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 pm2.5 air pollution, mean annual exposure, 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 pm2.5 air pollution, mean annual exposure 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 pm2.5 air pollution, mean annual exposure?
- Sierra Leone ranks 69th and Sri Lanka ranks 68th of 200 countries.
- Where does this data come from?
- Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network, published as PM2.5 air pollution, mean annual exposure (micrograms per cubic meter). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Population-weighted exposure to ambient PM2.5 pollution is defined as the average level of exposure of a nation's population to concentrations of suspended particles measuring less than 2.5 microns in aerodynamic diameter, which are capable of penetrating deep into the respiratory tract and causing severe health damage. Exposure is calculated by weighting mean annual concentrations of PM2.5 by population in both urban and rural areas.