PM2.5 air pollution, mean annual exposure in Least developed countries

Least developed countries: PM2.5 air pollution, mean annual exposure was 36.56 micrograms per cubic meter in 2023. ▬ Flat

Latest (2023)
36.56 micrograms per cubic meter
Change on year
up 0.0%
Rank
15th
of 45 groups
All-time high
39.83 micrograms per cubic meter
in 2012
All-time low
36.4 micrograms per cubic meter
in 2017
Years of data
34
1990–2023

PM2.5 air pollution, mean annual exposure in Least developed countries, 1990–2023

0102030401990200620231990: 38.9 micrograms per cubic meter1991: 38.2 micrograms per cubic meter1992: 38.2 micrograms per cubic meter1993: 38.2 micrograms per cubic meter1994: 38.2 micrograms per cubic meter1995: 36.6 micrograms per cubic meter1996: 38.2 micrograms per cubic meter1997: 38.2 micrograms per cubic meter1998: 38.2 micrograms per cubic meter1999: 38.2 micrograms per cubic meter2000: 39 micrograms per cubic meter2001: 38.9 micrograms per cubic meter2002: 38.9 micrograms per cubic meter2003: 37.6 micrograms per cubic meter2004: 39.2 micrograms per cubic meter2005: 38.5 micrograms per cubic meter2006: 37.8 micrograms per cubic meter2007: 37.9 micrograms per cubic meter2008: 38.7 micrograms per cubic meter2009: 38.7 micrograms per cubic meter2010: 38.9 micrograms per cubic meter2011: 39.4 micrograms per cubic meter2012: 39.8 micrograms per cubic meter2013: 37.9 micrograms per cubic meter2014: 36.6 micrograms per cubic meter2015: 38.9 micrograms per cubic meter2016: 37.4 micrograms per cubic meter2017: 36.4 micrograms per cubic meter2018: 38.5 micrograms per cubic meter2019: 36.7 micrograms per cubic meter2020: 37.2 micrograms per cubic meter2021: 37.4 micrograms per cubic meter2022: 36.5 micrograms per cubic meter2023: 36.6 micrograms per cubic meter

Source: Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network. Measured in micrograms per cubic meter.

Analysis

In 2023, pm2.5 air pollution, mean annual exposure in Least developed countries stood at 36.56 micrograms per cubic meter.

The figure is down 3.5% over ten years.

Over the whole period, pm2.5 air pollution, mean annual exposure in Least developed countries peaked at 39.83 micrograms per cubic meter in 2012 and was at its lowest, 36.4 micrograms per cubic meter, in 2017.

That places Least developed countries 15th out of 45 groups with data for 2023, putting it in the middle of the range.

PM2.5 air pollution, mean annual exposure in Least developed countries, year by year

Annual values for PM2.5 air pollution, mean annual exposure (micrograms per cubic meter) in Least developed countries, 1990 to 2023.
Year micrograms per cubic meter Change
1990 38.91 micrograms per cubic meter
1991 38.16 micrograms per cubic meter -1.9%
1992 38.18 micrograms per cubic meter +0.1%
1993 38.19 micrograms per cubic meter +0.0%
1994 38.17 micrograms per cubic meter -0.1%
1995 36.62 micrograms per cubic meter -4.1%
1996 38.16 micrograms per cubic meter +4.2%
1997 38.16 micrograms per cubic meter +0.0%
1998 38.17 micrograms per cubic meter +0.0%
1999 38.19 micrograms per cubic meter +0.1%
2000 38.96 micrograms per cubic meter +2.0%
2001 38.89 micrograms per cubic meter -0.2%
2002 38.89 micrograms per cubic meter +0.0%
2003 37.63 micrograms per cubic meter -3.2%
2004 39.24 micrograms per cubic meter +4.3%
2005 38.54 micrograms per cubic meter -1.8%
2006 37.8 micrograms per cubic meter -1.9%
2007 37.9 micrograms per cubic meter +0.3%
2008 38.74 micrograms per cubic meter +2.2%
2009 38.74 micrograms per cubic meter +0.0%
2010 38.95 micrograms per cubic meter +0.5%
2011 39.44 micrograms per cubic meter +1.3%
2012 39.83 micrograms per cubic meter +1.0%
2013 37.88 micrograms per cubic meter -4.9%
2014 36.55 micrograms per cubic meter -3.5%
2015 38.86 micrograms per cubic meter +6.3%
2016 37.41 micrograms per cubic meter -3.7%
2017 36.4 micrograms per cubic meter -2.7%
2018 38.48 micrograms per cubic meter +5.7%
2019 36.65 micrograms per cubic meter -4.8%
2020 37.2 micrograms per cubic meter +1.5%
2021 37.41 micrograms per cubic meter +0.6%
2022 36.54 micrograms per cubic meter -2.3%
2023 36.56 micrograms per cubic meter +0.0%

Averages by decade

DecadeAverage LowestHighest Years
1990s 38.09 micrograms per cubic meter 36.62 micrograms per cubic meter 38.91 micrograms per cubic meter 10
2000s 38.53 micrograms per cubic meter 37.63 micrograms per cubic meter 39.24 micrograms per cubic meter 10
2010s 38.05 micrograms per cubic meter 36.4 micrograms per cubic meter 39.83 micrograms per cubic meter 10
2020s 36.93 micrograms per cubic meter 36.54 micrograms per cubic meter 37.41 micrograms per cubic meter 4

Countries ranked near Least developed countries

  1. 12 Nepal 53.2 micrograms per cubic meter compare
  2. 13 Iraq 49.47 micrograms per cubic meter compare
  3. 14 Oman 46.86 micrograms per cubic meter compare
  4. 15 Yemen 46.84 micrograms per cubic meter compare
  5. 16 Mauritania 46.5 micrograms per cubic meter compare
  6. 17 Egypt 43.15 micrograms per cubic meter compare
  7. 18 Chad 42.96 micrograms per cubic meter compare

See the full ranking of 247 places →

More urban development data for Least developed countries

All data for Least developed countries →

Frequently asked questions

What is pm2.5 air pollution, mean annual exposure in Least developed countries?
Pm2.5 air pollution, mean annual exposure in Least developed countries was 36.56 micrograms per cubic meter in 2023, according to Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network.
What is the highest pm2.5 air pollution, mean annual exposure recorded in Least developed countries?
The highest recorded value was 39.83 micrograms per cubic meter in 2012.
What is the lowest pm2.5 air pollution, mean annual exposure recorded in Least developed countries?
The lowest recorded value was 36.4 micrograms per cubic meter in 2017.
How does Least developed countries rank for pm2.5 air pollution, mean annual exposure?
Least developed countries ranks 15th out of 45 groups with data for 2023.
Is pm2.5 air pollution, mean annual exposure rising or falling in Least developed countries?
Over the last ten years it is down 3.5%. The long-run trend across the full record is flat.
Where does this Least developed countries data come from?
The figures come from Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network, published as part of PM2.5 air pollution, mean annual exposure (micrograms per cubic meter). Statizoid updates them automatically from the source API.

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PM2.5 air pollution, mean annual exposure in Least developed countries. Statizoid, drawing on Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network. Retrieved 22 August 2026, from https://urban.statizoid.com/stat/pm2-5-air-pollution-mean-annual-exposure-micrograms-per-cubic-meter/least-developed-countries-un-classification/

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About this data

Indicator
PM2.5 air pollution, mean annual exposure (micrograms per cubic meter)
Unit
micrograms per cubic meter
Source
Global Burden of Disease Study 2023 (GBD 2023) Air Pollution Exposure Estimates and Risk Curves 1990-2023, GBD Collaborator Network
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
247 places, 8,398 data points, 1990–2023
Last refreshed

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.