Climate · West Africa
Sierra Leone PM2.5 Air Pollution
Population-weighted mean annual exposure to fine particulate matter (PM2.5), in micrograms per cubic metre. Source: World Bank — World Development Indicators. Updated June 25, 2026.
Trend
History
| Period | PM2.5 Air Pollution |
|---|---|
| 2020 | 43.2 µg/m³ |
| 2019 | 38.6 µg/m³ |
| 2018 | 44.3 µg/m³ |
| 2017 | 44.7 µg/m³ |
| 2016 | 48.7 µg/m³ |
| 2015 | 51.8 µg/m³ |
| 2014 | 36.2 µg/m³ |
| 2013 | 34.4 µg/m³ |
| 2012 | 42.4 µg/m³ |
| 2011 | 43.1 µg/m³ |
| 2010 | 36.9 µg/m³ |
| 2009 | 37.4 µg/m³ |
Get this via API
The series above is served by the /v1/data endpoint. With a free key you get JSON for every country and indicator on this site.
curl "https://api.africa-api.com/v1/data?country_code=SL&metric_key=pm25_air_pollution_ug_per_m3" \
-H "Authorization: Bearer $AFRICA_API_KEY"PM2.5 Air Pollution across Africa
Rank all 54 ->| Country | PM2.5 Air Pollution |
|---|---|
| Nigeria | 56.5 µg/m³ |
| Kenya | 24.4 µg/m³ |
| South Africa | 23.8 µg/m³ |
| Egypt | 54.9 µg/m³ |
| Ghana | 54.2 µg/m³ |
| Ethiopia | 27.3 µg/m³ |
Frequently asked questions
What is Sierra Leone's mean PM2.5 air pollution?
Sierra Leone's mean PM2.5 air pollution is 43.2 µg/m³ as of 2020, according to World Bank — World Development Indicators.
What is the source for this figure?
The figure comes from World Bank — World Development Indicators and is republished by the Africa API with the retrieval date shown on this page.
How do I get Sierra Leone PM2.5 Air Pollution data via API?
Call GET /v1/data?country_code=SL&metric_key=pm25_air_pollution_ug_per_m3 with a free Africa API key to receive the full time series as JSON.
More Sierra Leone climate data