How does Sierra Leone rank globally on PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)?

In 2020, Sierra Leone ranked #24 out of 200 countries reporting PM2.5 air pollution, mean annual exposure (micrograms per cubic meter).

Sierra Leone: PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)

Name: Sierra Leone: PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)
Creator: World Bank
License: https://datacatalog.worldbank.org/public-licenses#cc-by

In 2020, Sierra Leone's PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) was 43.22.

That's up 12.0% from 2019, the highest value since 2018.

The global average for this indicator in 2020 was 23.53 . Sierra Leone ranks #24 globally out of 200 reporting countries. Within Sub-Saharan Africa, it ranks #16 of 48.

Source: World Bank Open Data (EN.ATM.PM25.MC.M3) • Data as of 2020

Trend (2001–2020)

Highlights

Peak: 51.81; 2015
Trough: 34.42; 2013
1-year change: +12.0%
5-year change: -16.6%; -3.6% / yr
10-year change: +17.1%; +1.6% / yr

Historical Data — Last 10 Years

Year	PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)
2020	43.2211
2019	38.5921
2018	44.3352
2017	44.7074
2016	48.7037
2015	51.8062
2014	36.2194
2013	34.4203
2012	42.3970
2011	43.1349

About PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)

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.

Indicator code: EN.ATM.PM25.MC.M3 • Category: Environment

Frequently asked questions

What was Sierra Leone's PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) in 2020?: In 2020, Sierra Leone's PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) was 43.22, according to World Bank Open Data.
Is Sierra Leone's PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) rising or falling?: Sierra Leone's PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) rose 12.0% from 2019 to 2020.
How does Sierra Leone rank globally on PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)?: In 2020, Sierra Leone ranked #24 out of 200 countries reporting PM2.5 air pollution, mean annual exposure (micrograms per cubic meter).
How does Sierra Leone's PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) compare to the world average?: The global average for PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) in 2020 was 23.53, so Sierra Leone is above the world average. Within Sub-Saharan Africa, it ranks #16 of 48.
What is PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) and how is it measured?: 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.

Download this data: CSV JSON

Source: World Bank Open Data (EN.ATM.PM25.MC.M3), CC BY 4.0.