Which has higher emissions of air pollutants, American Samoa or Marshall Islands?

Marshall Islands, at 1,061 tonnes against 610.7 tonnes in American Samoa as of 2022.

What is the difference in emissions of air pollutants between American Samoa and Marshall Islands?

450.3 tonnes, with Marshall Islands ahead.

How many years of comparable data are there for American Samoa and Marshall Islands?

273 years are reported by both, from 1750 to 2022.

Where does this data come from?

Hoesly et al. (2024) – Community Emissions Data System (CEDS) – with major processing by Our World in Data, published as emissions of air pollutants. Statizoid refreshes it automatically from the source and publishes the full history for both places.

American Samoa vs Marshall Islands: emissions of air pollutants

American Samoa

610.7 tonnes

in 2022

Marshall Islands

1,061 tonnes

in 2022

American Samoa rank

210th

Marshall Islands rank

208th

emissions of air pollutants over time

American Samoa
Marshall Islands

How they compare

Marshall Islands currently reports 1,061 tonnes against 610.7 tonnes in American Samoa, a difference of 450.3 tonnes.

That makes Marshall Islands's figure about 1.7 times American Samoa's.

The two have swapped places 8 times across 273 shared years of data; in 1750 it was Marshall Islands ahead.

American Samoa ranks 210th and Marshall Islands ranks 208th of 220 countries.

Across the 28 decades both report, American Samoa averaged higher in 5 and Marshall Islands in 23.

Head to head by decade

Decade	American Samoa	Marshall Islands	Difference	Ahead
1750s	32 tonnes	69.67 tonnes	37.67 tonnes	Marshall Islands
1760s	33.64 tonnes	72.91 tonnes	39.26 tonnes	Marshall Islands
1770s	35.36 tonnes	76.22 tonnes	40.85 tonnes	Marshall Islands
1780s	37.15 tonnes	79.58 tonnes	42.42 tonnes	Marshall Islands
1790s	39.02 tonnes	82.96 tonnes	43.95 tonnes	Marshall Islands
1800s	40.95 tonnes	86.35 tonnes	45.4 tonnes	Marshall Islands
1810s	43 tonnes	89.8 tonnes	46.8 tonnes	Marshall Islands
1820s	45.19 tonnes	93.3 tonnes	48.12 tonnes	Marshall Islands
1830s	47.43 tonnes	96.65 tonnes	49.23 tonnes	Marshall Islands
1840s	49.71 tonnes	99.77 tonnes	50.06 tonnes	Marshall Islands
1850s	52.03 tonnes	102.53 tonnes	50.51 tonnes	Marshall Islands
1860s	56.84 tonnes	103.84 tonnes	47.01 tonnes	Marshall Islands
1870s	64.72 tonnes	103.34 tonnes	38.61 tonnes	Marshall Islands
1880s	74.38 tonnes	101.96 tonnes	27.58 tonnes	Marshall Islands
1890s	85.17 tonnes	99.52 tonnes	14.35 tonnes	Marshall Islands
1900s	94.85 tonnes	102.13 tonnes	7.28 tonnes	Marshall Islands
1910s	112.72 tonnes	109.48 tonnes	3.24 tonnes	American Samoa
1920s	178.06 tonnes	145.03 tonnes	33.03 tonnes	American Samoa
1930s	201.12 tonnes	220.84 tonnes	19.72 tonnes	Marshall Islands
1940s	335.87 tonnes	326.5 tonnes	9.37 tonnes	American Samoa
1950s	449.94 tonnes	458.45 tonnes	8.52 tonnes	Marshall Islands
1960s	414.92 tonnes	567.02 tonnes	152.1 tonnes	Marshall Islands
1970s	506.75 tonnes	644.46 tonnes	137.71 tonnes	Marshall Islands
1980s	1,026 tonnes	867.64 tonnes	157.87 tonnes	American Samoa
1990s	2,263 tonnes	2,439 tonnes	176.29 tonnes	Marshall Islands
2000s	1,520 tonnes	1,451 tonnes	69.32 tonnes	American Samoa
2010s	763.84 tonnes	1,177 tonnes	412.71 tonnes	Marshall Islands
2020s	592.47 tonnes	1,087 tonnes	494.53 tonnes	Marshall Islands

Averages of every year both report within each decade.

Frequently asked questions

Which has higher emissions of air pollutants, American Samoa or Marshall Islands?: Marshall Islands, at 1,061 tonnes against 610.7 tonnes in American Samoa as of 2022.
What is the difference in emissions of air pollutants between American Samoa and Marshall Islands?: 450.3 tonnes, with Marshall Islands ahead.
How many years of comparable data are there for American Samoa and Marshall Islands?: 273 years are reported by both, from 1750 to 2022.
How do American Samoa and Marshall Islands rank globally for emissions of air pollutants?: American Samoa ranks 210th and Marshall Islands ranks 208th of 220 countries.
Where does this data come from?: Hoesly et al. (2024) – Community Emissions Data System (CEDS) – with major processing by Our World in Data, published as emissions of air pollutants. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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American Samoa vs Marshall Islands: emissions of air pollutants. Statizoid, drawing on Hoesly et al. (2024) – Community Emissions Data System (CEDS) – with major processing by Our World in Data. Retrieved 11 October 2026, from https://climate.statizoid.com/compare/change-air-pollutant-emissions/american-samoa/marshall-islands/

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About this data

Indicator: emissions of air pollutants
Unit: tonnes
Source: Hoesly et al. (2024) – Community Emissions Data System (CEDS) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 220 places, 60,060 data points, 1750–2022
Last refreshed: 09 October 2026

Carbon monoxide (CO) is a pollutant produced from the incomplete combustion of carbon-based fuels such as oil, gas, wood, and coal. CO is a harmful gas that contributes to both outdoor and indoor air pollution.