Chile vs Sierra Leone: Average annual exposure to PM2.5 air pollution

Chile

23.1 micrograms per cubic meter

in 2023

Sierra Leone

22.46 micrograms per cubic meter

in 2023

Chile rank

67th

Sierra Leone rank

69th

Average annual exposure to PM2.5 air pollution over time

Chile
Sierra Leone

How they compare

Chile currently reports 23.1 micrograms per cubic meter against 22.46 micrograms per cubic meter in Sierra Leone, a difference of 0.6419 micrograms per cubic meter.

The two have swapped places 6 times across 34 shared years of data; in 1990 it was Chile ahead.

Chile ranks 67th and Sierra Leone ranks 69th of 200 countries.

Individual pages

About this data

Indicator: Average annual exposure to PM2.5 air pollution
Unit: micrograms per cubic meter
Source: Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 200 places, 6,800 data points, 1990–2023
Last refreshed: 07 August 2026

The average level of exposure of the population to suspended particles less than 2.5 microns in diameter, which are capable of penetrating deep into the respiratory tract and damaging health. This is measured in micrograms per cubic meter.