Average annual exposure to PM2.5 air pollution in East Timor

East Timor: Average annual exposure to PM2.5 air pollution was 11.99 micrograms per cubic meter in 2023. ▼ Falling

Latest (2023)
11.99 micrograms per cubic meter
Change on year
down 5.8%
World rank
140th
of 200 countries
All-time high
16.87 micrograms per cubic meter
in 2004
All-time low
11.15 micrograms per cubic meter
in 2020
Years of data
34
1990–2023

Average annual exposure to PM2.5 air pollution in East Timor, 1990–2023

0510151990200620231990: 16.6 micrograms per cubic meter1991: 16.2 micrograms per cubic meter1992: 16.1 micrograms per cubic meter1993: 16 micrograms per cubic meter1994: 15.9 micrograms per cubic meter1995: 15.2 micrograms per cubic meter1996: 15.6 micrograms per cubic meter1997: 15.5 micrograms per cubic meter1998: 15.4 micrograms per cubic meter1999: 15.3 micrograms per cubic meter2000: 15.4 micrograms per cubic meter2001: 15.8 micrograms per cubic meter2002: 16.4 micrograms per cubic meter2003: 15.1 micrograms per cubic meter2004: 16.9 micrograms per cubic meter2005: 15.6 micrograms per cubic meter2006: 13.9 micrograms per cubic meter2007: 13.1 micrograms per cubic meter2008: 13.7 micrograms per cubic meter2009: 14 micrograms per cubic meter2010: 13.6 micrograms per cubic meter2011: 15.6 micrograms per cubic meter2012: 14.9 micrograms per cubic meter2013: 12 micrograms per cubic meter2014: 13.6 micrograms per cubic meter2015: 12.5 micrograms per cubic meter2016: 11.8 micrograms per cubic meter2017: 12.8 micrograms per cubic meter2018: 12.9 micrograms per cubic meter2019: 13.2 micrograms per cubic meter2020: 11.2 micrograms per cubic meter2021: 12.9 micrograms per cubic meter2022: 12.7 micrograms per cubic meter2023: 12 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. Measured in micrograms per cubic meter.

Analysis

In 2023, average annual exposure to pm2.5 air pollution in East Timor stood at 11.99 micrograms per cubic meter.

The figure is down 5.8% on the previous year and down 0.2% over ten years.

Over the whole period, average annual exposure to pm2.5 air pollution in East Timor peaked at 16.87 micrograms per cubic meter in 2004 and was at its lowest, 11.15 micrograms per cubic meter, in 2020.

That places East Timor 140th out of 200 countries with data for 2023, putting it in the middle of the range.

The long-run direction has been consistently falling across the 34 years of available data.

Average annual exposure to PM2.5 air pollution in East Timor, year by year

Annual values for Average annual exposure to PM2.5 air pollution in East Timor, 1990 to 2023.
Year micrograms per cubic meter Change
1990 16.61 micrograms per cubic meter
1991 16.21 micrograms per cubic meter -2.4%
1992 16.09 micrograms per cubic meter -0.7%
1993 15.97 micrograms per cubic meter -0.7%
1994 15.86 micrograms per cubic meter -0.7%
1995 15.17 micrograms per cubic meter -4.3%
1996 15.62 micrograms per cubic meter +3.0%
1997 15.51 micrograms per cubic meter -0.7%
1998 15.39 micrograms per cubic meter -0.8%
1999 15.27 micrograms per cubic meter -0.8%
2000 15.44 micrograms per cubic meter +1.1%
2001 15.79 micrograms per cubic meter +2.3%
2002 16.42 micrograms per cubic meter +4.0%
2003 15.12 micrograms per cubic meter -7.9%
2004 16.87 micrograms per cubic meter +11.6%
2005 15.55 micrograms per cubic meter -7.8%
2006 13.92 micrograms per cubic meter -10.5%
2007 13.06 micrograms per cubic meter -6.2%
2008 13.74 micrograms per cubic meter +5.2%
2009 13.95 micrograms per cubic meter +1.6%
2010 13.57 micrograms per cubic meter -2.7%
2011 15.62 micrograms per cubic meter +15.0%
2012 14.9 micrograms per cubic meter -4.6%
2013 12.01 micrograms per cubic meter -19.3%
2014 13.58 micrograms per cubic meter +13.1%
2015 12.49 micrograms per cubic meter -8.0%
2016 11.84 micrograms per cubic meter -5.2%
2017 12.83 micrograms per cubic meter +8.3%
2018 12.93 micrograms per cubic meter +0.8%
2019 13.19 micrograms per cubic meter +2.1%
2020 11.15 micrograms per cubic meter -15.5%
2021 12.92 micrograms per cubic meter +15.8%
2022 12.72 micrograms per cubic meter -1.5%
2023 11.99 micrograms per cubic meter -5.8%

East Timor compared with similar countries

  • East Timor's 11.99 micrograms per cubic meter is below the median for lower middle income countries, which is 25.98 micrograms per cubic meter, 46% of the median. (47 countries reporting)
  • East Timor's 11.99 micrograms per cubic meter is above the median for East Asia & Pacific, which is 9.77 micrograms per cubic meter, 1.2× the median. (33 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1990s 15.77 micrograms per cubic meter 15.17 micrograms per cubic meter 16.61 micrograms per cubic meter 10
2000s 14.99 micrograms per cubic meter 13.06 micrograms per cubic meter 16.87 micrograms per cubic meter 10
2010s 13.3 micrograms per cubic meter 11.84 micrograms per cubic meter 15.62 micrograms per cubic meter 10
2020s 12.19 micrograms per cubic meter 11.15 micrograms per cubic meter 12.92 micrograms per cubic meter 4

Countries ranked near East Timor

  1. 137 San Marino 12.74 micrograms per cubic meter compare
  2. 138 Slovenia 12.56 micrograms per cubic meter compare
  3. 139 Madagascar 12.39 micrograms per cubic meter compare
  4. 141 Belarus 11.98 micrograms per cubic meter compare
  5. 142 Russia 11.57 micrograms per cubic meter compare
  6. 143 Dominica 11.52 micrograms per cubic meter compare

See the full ranking of 200 places →

More environment data for East Timor

All data for East Timor →

Frequently asked questions

What is average annual exposure to pm2.5 air pollution in East Timor?
Average annual exposure to pm2.5 air pollution in East Timor was 11.99 micrograms per cubic meter in 2023, according to Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data.
What is the highest average annual exposure to pm2.5 air pollution recorded in East Timor?
The highest recorded value was 16.87 micrograms per cubic meter in 2004.
What is the lowest average annual exposure to pm2.5 air pollution recorded in East Timor?
The lowest recorded value was 11.15 micrograms per cubic meter in 2020.
How does East Timor rank for average annual exposure to pm2.5 air pollution?
East Timor ranks 140th out of 200 countries with data for 2023.
Is average annual exposure to pm2.5 air pollution rising or falling in East Timor?
Over the last ten years it is down 0.2%. The long-run trend across the full record is falling.
Where does this East Timor data come from?
The figures come from Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data, published as part of Average annual exposure to PM2.5 air pollution. Statizoid updates them automatically from the source API.

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Average annual exposure to PM2.5 air pollution in East Timor. Statizoid, drawing on Global Burden of Disease Study 2023, Institute for Health Metrics and Evaluation (IHME), via World Bank (2026) – processed by Our World in Data. Retrieved 22 September 2026, from https://environment.statizoid.com/stat/average-exposure-pm25-pollution/timor-leste/

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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

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.