PM2.5 pollution, population exposed to levels exceeding WHO Interim in Sierra Leone
Sierra Leone: PM2.5 pollution, population exposed to levels exceeding WHO Interim was 1.9% in 2017. ◆ Volatile
PM2.5 pollution, population exposed to levels exceeding WHO Interim in Sierra Leone, 1990–2017
Source: Brauer, M. et al. 2017, for the Global Burden of Disease Study 2017. Measured in % of total.
Analysis
The most recent figure for pm2.5 pollution, population exposed to levels exceeding who interim in Sierra Leone is 1.9%, measured in 2017.
That represents a change of up 16.4% on the previous year.
Over the whole period, pm2.5 pollution, population exposed to levels exceeding who interim in Sierra Leone peaked at 3.8% in 2015 and was at its lowest, 0.0%, in 2005.
Sierra Leone ranks 118th of 194 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
PM2.5 pollution, population exposed to levels exceeding WHO Interim in Sierra Leone, year by year
| Year | % of total | Change |
|---|---|---|
| 1990 | 0.1% | — |
| 1995 | 0.1% | -15.9% |
| 2000 | 0.2% | +71.2% |
| 2005 | 0.0% | -100.0% |
| 2010 | 0.0% | — |
| 2011 | 0.0% | — |
| 2012 | 0.0% | — |
| 2013 | 0.0% | — |
| 2014 | 0.0% | — |
| 2015 | 3.8% | — |
| 2016 | 1.7% | -57.1% |
| 2017 | 1.9% | +16.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0.1% | 0.1% | 0.1% | 2 |
| 2000s | 0.1% | 0.0% | 0.2% | 2 |
| 2010s | 0.9% | 0.0% | 3.8% | 8 |
Countries ranked near Sierra Leone
- 115 Belize 2.7% compare
- 116 Nicaragua 2.1% compare
- 117 Venezuela, Bolivarian Republic of 2.0% compare
- 119 Kazakhstan 1.4% compare
- 120 Colombia 1.3% compare
- 121 United States of America 0.1% compare
More environment data for Sierra Leone
- Historical exposure to drought — Land soil moisture anomaly -5.4 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -5.39 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.232 °C (2025)
- Temperature change 1.28 °C (2025)
- Newsprint — Import quantity, gaps filled 151 t (2024)
- Newsprint — Import quantity, annual growth rate 208.16 % change on previous year (2024)
- Newsprint — Import value, gaps filled 134 1000 USD (2024)
- Newsprint — Import value, annual growth rate 204.54 % change on previous year (2024)
- Printing and writing papers — Import quantity, annual growth rate -38.14 % change on previous year (2024)
Frequently asked questions
- What is pm2.5 pollution, population exposed to levels exceeding who interim in Sierra Leone?
- Pm2.5 pollution, population exposed to levels exceeding who interim in Sierra Leone was 1.9% in 2017, according to Brauer, M. et al. 2017, for the Global Burden of Disease Study 2017.
- What is the highest pm2.5 pollution, population exposed to levels exceeding who interim recorded in Sierra Leone?
- The highest recorded value was 3.8% in 2015.
- What is the lowest pm2.5 pollution, population exposed to levels exceeding who interim recorded in Sierra Leone?
- The lowest recorded value was 0.0% in 2005.
- How does Sierra Leone rank for pm2.5 pollution, population exposed to levels exceeding who interim?
- Sierra Leone ranks 118th out of 194 countries with data for 2017.
- Where does this Sierra Leone data come from?
- The figures come from Brauer, M. et al. 2017, for the Global Burden of Disease Study 2017, published as part of PM2.5 pollution, population exposed to levels exceeding WHO Interim Target-2 value (% of total). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 12 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
Percent of population exposed to ambient concentrations of PM2.5 that exceed the World Health Organization (WHO) Interim Target 2 (IT-2) is defined as the portion of a country’s population living in places where mean annual concentrations of PM2.5 are greater than 25 micrograms per cubic meter. The Air Quality Guideline (AQG) of 10 micrograms per cubic meter is recommended by the WHO as the lower end of the range of concentrations over which adverse health effects due to PM2.5 exposure have been observed.