China vs United States: Emissions of air pollutants

China
20.99 million tonnes
in 2022
United States
9.00 million tonnes
in 2022
China rank
1st
United States rank
3rd

Emissions of air pollutants over time

  • China
  • United States
010.0M20.0M30.0M175018862022

How they compare

China currently reports 20.99 million tonnes against 9.00 million tonnes in United States, a difference of 11.99 million tonnes.

That makes China's figure about 2.3 times United States's.

The two have swapped places 2 times across 273 shared years of data; in 1750 it was China ahead.

China ranks 1st and United States ranks 3rd of 220 countries.

Across the 28 decades both report, China averaged higher in 13 and United States in 15.

Head to head by decade

Decade China United States Difference Ahead
1750s 26,529 tonnes 2,945 tonnes 23,584 tonnes China
1760s 27,120 tonnes 3,469 tonnes 23,652 tonnes China
1770s 30,466 tonnes 4,113 tonnes 26,353 tonnes China
1780s 35,049 tonnes 4,915 tonnes 30,134 tonnes China
1790s 35,074 tonnes 6,223 tonnes 28,851 tonnes China
1800s 36,235 tonnes 8,742 tonnes 27,493 tonnes China
1810s 39,027 tonnes 11,940 tonnes 27,087 tonnes China
1820s 40,585 tonnes 16,407 tonnes 24,179 tonnes China
1830s 42,749 tonnes 24,789 tonnes 17,960 tonnes China
1840s 43,407 tonnes 40,067 tonnes 3,340 tonnes China
1850s 42,343 tonnes 74,373 tonnes 32,030 tonnes United States
1860s 40,283 tonnes 111,366 tonnes 71,083 tonnes United States
1870s 40,955 tonnes 222,754 tonnes 181,799 tonnes United States
1880s 43,537 tonnes 494,759 tonnes 451,222 tonnes United States
1890s 47,050 tonnes 893,667 tonnes 846,617 tonnes United States
1900s 84,954 tonnes 1.98 million tonnes 1.90 million tonnes United States
1910s 145,598 tonnes 3.84 million tonnes 3.70 million tonnes United States
1920s 231,262 tonnes 7.17 million tonnes 6.94 million tonnes United States
1930s 335,358 tonnes 8.30 million tonnes 7.97 million tonnes United States
1940s 458,486 tonnes 12.74 million tonnes 12.29 million tonnes United States
1950s 1.08 million tonnes 15.95 million tonnes 14.86 million tonnes United States
1960s 1.97 million tonnes 21.69 million tonnes 19.72 million tonnes United States
1970s 4.29 million tonnes 27.89 million tonnes 23.60 million tonnes United States
1980s 7.18 million tonnes 26.24 million tonnes 19.06 million tonnes United States
1990s 12.87 million tonnes 25.31 million tonnes 12.44 million tonnes United States
2000s 23.24 million tonnes 19.27 million tonnes 3.97 million tonnes China
2010s 27.18 million tonnes 12.16 million tonnes 15.02 million tonnes China
2020s 21.41 million tonnes 8.83 million tonnes 12.58 million tonnes China

Averages of every year both report within each decade.

Frequently asked questions

Which has higher emissions of air pollutants, China or United States?
China, at 20.99 million tonnes against 9.00 million tonnes in United States as of 2022.
What is the difference in emissions of air pollutants between China and United States?
11.99 million tonnes, with China ahead.
How many years of comparable data are there for China and United States?
273 years are reported by both, from 1750 to 2022.
How do China and United States rank globally for emissions of air pollutants?
China ranks 1st and United States ranks 3rd 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.

Individual pages

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

Nitrogen oxides (NOₓ) are gases that are mainly formed during the burning of fossil fuels. Exposure to NOₓ gases can have negative impacts on respiratory health. NOₓ gases can also lead to the formation of ozone – another air pollutant.