Nitrous oxide emissions in Hong Kong
Hong Kong: Nitrous oxide emissions was 442,131 tonnes of CO₂ equivalents in 2024. ◆ Volatile
Latest (2024)
442,131 tonnes of CO₂ equivalents
Change on year
down 12.4%
World rank
152nd
of 201 countries
All-time high
997,681 tonnes of CO₂ equivalents
in 1999
All-time low
29,385 tonnes of CO₂ equivalents
in 1850
Years of data
175
1850–2024
Nitrous oxide emissions in Hong Kong, 1850–2024
Source: Jones et al. (2025) – with major processing by Our World in Data. Measured in tonnes of CO₂ equivalents.
Analysis
The most recent figure for nitrous oxide emissions in Hong Kong is 442,131 tonnes of CO₂ equivalents, measured in 2024.
That represents a change of down 12.4% on the previous year and down 23.0% over ten years.
Over the whole period, nitrous oxide emissions in Hong Kong peaked at 997,681 tonnes of CO₂ equivalents in 1999 and was at its lowest, 29,385 tonnes of CO₂ equivalents, in 1850.
Hong Kong ranks 152nd of 201 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Nitrous oxide emissions in Hong Kong, year by year
| Year | tonnes of CO₂ equivalents | Change |
|---|---|---|
| 1850 | 29,385 tonnes of CO₂ equivalents | — |
| 1851 | 29,786 tonnes of CO₂ equivalents | +1.4% |
| 1852 | 30,180 tonnes of CO₂ equivalents | +1.3% |
| 1853 | 30,567 tonnes of CO₂ equivalents | +1.3% |
| 1854 | 30,941 tonnes of CO₂ equivalents | +1.2% |
| 1855 | 31,301 tonnes of CO₂ equivalents | +1.2% |
| 1856 | 31,642 tonnes of CO₂ equivalents | +1.1% |
| 1857 | 31,962 tonnes of CO₂ equivalents | +1.0% |
| 1858 | 32,257 tonnes of CO₂ equivalents | +0.9% |
| 1859 | 32,524 tonnes of CO₂ equivalents | +0.8% |
| 1860 | 32,759 tonnes of CO₂ equivalents | +0.7% |
| 1861 | 32,975 tonnes of CO₂ equivalents | +0.7% |
| 1862 | 33,186 tonnes of CO₂ equivalents | +0.6% |
| 1863 | 33,393 tonnes of CO₂ equivalents | +0.6% |
| 1864 | 33,598 tonnes of CO₂ equivalents | +0.6% |
| 1865 | 33,801 tonnes of CO₂ equivalents | +0.6% |
| 1866 | 34,005 tonnes of CO₂ equivalents | +0.6% |
| 1867 | 34,210 tonnes of CO₂ equivalents | +0.6% |
| 1868 | 34,418 tonnes of CO₂ equivalents | +0.6% |
| 1869 | 34,630 tonnes of CO₂ equivalents | +0.6% |
| 1870 | 34,847 tonnes of CO₂ equivalents | +0.6% |
| 1871 | 35,232 tonnes of CO₂ equivalents | +1.1% |
| 1872 | 35,905 tonnes of CO₂ equivalents | +1.9% |
| 1873 | 36,797 tonnes of CO₂ equivalents | +2.5% |
| 1874 | 37,844 tonnes of CO₂ equivalents | +2.8% |
| 1875 | 38,978 tonnes of CO₂ equivalents | +3.0% |
| 1876 | 40,132 tonnes of CO₂ equivalents | +3.0% |
| 1877 | 41,242 tonnes of CO₂ equivalents | +2.8% |
| 1878 | 42,240 tonnes of CO₂ equivalents | +2.4% |
| 1879 | 43,060 tonnes of CO₂ equivalents | +1.9% |
| 1880 | 43,635 tonnes of CO₂ equivalents | +1.3% |
| 1881 | 44,046 tonnes of CO₂ equivalents | +0.9% |
| 1882 | 44,422 tonnes of CO₂ equivalents | +0.9% |
| 1883 | 44,771 tonnes of CO₂ equivalents | +0.8% |
| 1884 | 45,098 tonnes of CO₂ equivalents | +0.7% |
| 1885 | 45,411 tonnes of CO₂ equivalents | +0.7% |
| 1886 | 45,718 tonnes of CO₂ equivalents | +0.7% |
| 1887 | 46,025 tonnes of CO₂ equivalents | +0.7% |
| 1888 | 46,339 tonnes of CO₂ equivalents | +0.7% |
| 1889 | 46,667 tonnes of CO₂ equivalents | +0.7% |
| 1890 | 47,231 tonnes of CO₂ equivalents | +1.2% |
| 1891 | 47,647 tonnes of CO₂ equivalents | +0.9% |
| 1892 | 48,066 tonnes of CO₂ equivalents | +0.9% |
| 1893 | 48,492 tonnes of CO₂ equivalents | +0.9% |
| 1894 | 48,926 tonnes of CO₂ equivalents | +0.9% |
| 1895 | 49,369 tonnes of CO₂ equivalents | +0.9% |
| 1896 | 49,824 tonnes of CO₂ equivalents | +0.9% |
| 1897 | 50,293 tonnes of CO₂ equivalents | +0.9% |
| 1898 | 50,777 tonnes of CO₂ equivalents | +1.0% |
| 1899 | 51,278 tonnes of CO₂ equivalents | +1.0% |
| 1900 | 51,798 tonnes of CO₂ equivalents | +1.0% |
| 1901 | 52,355 tonnes of CO₂ equivalents | +1.1% |
| 1902 | 52,960 tonnes of CO₂ equivalents | +1.2% |
| 1903 | 53,604 tonnes of CO₂ equivalents | +1.2% |
| 1904 | 54,280 tonnes of CO₂ equivalents | +1.3% |
| 1905 | 54,982 tonnes of CO₂ equivalents | +1.3% |
| 1906 | 55,702 tonnes of CO₂ equivalents | +1.3% |
| 1907 | 56,431 tonnes of CO₂ equivalents | +1.3% |
| 1908 | 57,163 tonnes of CO₂ equivalents | +1.3% |
| 1909 | 57,890 tonnes of CO₂ equivalents | +1.3% |
| 1910 | 58,605 tonnes of CO₂ equivalents | +1.2% |
| 1911 | 59,318 tonnes of CO₂ equivalents | +1.2% |
| 1912 | 60,044 tonnes of CO₂ equivalents | +1.2% |
| 1913 | 60,781 tonnes of CO₂ equivalents | +1.2% |
| 1914 | 61,528 tonnes of CO₂ equivalents | +1.2% |
| 1915 | 62,283 tonnes of CO₂ equivalents | +1.2% |
| 1916 | 63,044 tonnes of CO₂ equivalents | +1.2% |
| 1917 | 63,810 tonnes of CO₂ equivalents | +1.2% |
| 1918 | 64,579 tonnes of CO₂ equivalents | +1.2% |
| 1919 | 65,350 tonnes of CO₂ equivalents | +1.2% |
| 1920 | 66,121 tonnes of CO₂ equivalents | +1.2% |
| 1921 | 66,896 tonnes of CO₂ equivalents | +1.2% |
| 1922 | 67,679 tonnes of CO₂ equivalents | +1.2% |
| 1923 | 68,468 tonnes of CO₂ equivalents | +1.2% |
| 1924 | 69,262 tonnes of CO₂ equivalents | +1.2% |
| 1925 | 70,060 tonnes of CO₂ equivalents | +1.2% |
| 1926 | 70,859 tonnes of CO₂ equivalents | +1.1% |
| 1927 | 71,658 tonnes of CO₂ equivalents | +1.1% |
| 1928 | 72,456 tonnes of CO₂ equivalents | +1.1% |
| 1929 | 73,252 tonnes of CO₂ equivalents | +1.1% |
| 1930 | 74,042 tonnes of CO₂ equivalents | +1.1% |
| 1931 | 74,811 tonnes of CO₂ equivalents | +1.0% |
| 1932 | 75,550 tonnes of CO₂ equivalents | +1.0% |
| 1933 | 76,276 tonnes of CO₂ equivalents | +1.0% |
| 1934 | 77,005 tonnes of CO₂ equivalents | +1.0% |
| 1935 | 77,754 tonnes of CO₂ equivalents | +1.0% |
| 1936 | 78,539 tonnes of CO₂ equivalents | +1.0% |
| 1937 | 79,376 tonnes of CO₂ equivalents | +1.1% |
| 1938 | 80,283 tonnes of CO₂ equivalents | +1.1% |
| 1939 | 81,274 tonnes of CO₂ equivalents | +1.2% |
| 1940 | 82,366 tonnes of CO₂ equivalents | +1.3% |
| 1941 | 84,269 tonnes of CO₂ equivalents | +2.3% |
| 1942 | 87,496 tonnes of CO₂ equivalents | +3.8% |
| 1943 | 91,764 tonnes of CO₂ equivalents | +4.9% |
| 1944 | 96,792 tonnes of CO₂ equivalents | +5.5% |
| 1945 | 102,299 tonnes of CO₂ equivalents | +5.7% |
| 1946 | 108,005 tonnes of CO₂ equivalents | +5.6% |
| 1947 | 113,628 tonnes of CO₂ equivalents | +5.2% |
| 1948 | 118,886 tonnes of CO₂ equivalents | +4.6% |
| 1949 | 123,500 tonnes of CO₂ equivalents | +3.9% |
| 1950 | 127,186 tonnes of CO₂ equivalents | +3.0% |
| 1951 | 130,199 tonnes of CO₂ equivalents | +2.4% |
| 1952 | 133,017 tonnes of CO₂ equivalents | +2.2% |
| 1953 | 135,698 tonnes of CO₂ equivalents | +2.0% |
| 1954 | 138,302 tonnes of CO₂ equivalents | +1.9% |
| 1955 | 140,888 tonnes of CO₂ equivalents | +1.9% |
| 1956 | 143,513 tonnes of CO₂ equivalents | +1.9% |
| 1957 | 146,237 tonnes of CO₂ equivalents | +1.9% |
| 1958 | 149,118 tonnes of CO₂ equivalents | +2.0% |
| 1959 | 152,216 tonnes of CO₂ equivalents | +2.1% |
| 1960 | 155,588 tonnes of CO₂ equivalents | +2.2% |
| 1961 | 160,527 tonnes of CO₂ equivalents | +3.2% |
| 1962 | 167,974 tonnes of CO₂ equivalents | +4.6% |
| 1963 | 175,289 tonnes of CO₂ equivalents | +4.4% |
| 1964 | 173,344 tonnes of CO₂ equivalents | -1.1% |
| 1965 | 173,240 tonnes of CO₂ equivalents | -0.1% |
| 1966 | 178,134 tonnes of CO₂ equivalents | +2.8% |
| 1967 | 183,646 tonnes of CO₂ equivalents | +3.1% |
| 1968 | 194,217 tonnes of CO₂ equivalents | +5.8% |
| 1969 | 205,659 tonnes of CO₂ equivalents | +5.9% |
| 1970 | 256,322 tonnes of CO₂ equivalents | +24.6% |
| 1971 | 261,452 tonnes of CO₂ equivalents | +2.0% |
| 1972 | 273,481 tonnes of CO₂ equivalents | +4.6% |
| 1973 | 263,202 tonnes of CO₂ equivalents | -3.8% |
| 1974 | 260,401 tonnes of CO₂ equivalents | -1.1% |
| 1975 | 262,209 tonnes of CO₂ equivalents | +0.7% |
| 1976 | 282,826 tonnes of CO₂ equivalents | +7.9% |
| 1977 | 301,947 tonnes of CO₂ equivalents | +6.8% |
| 1978 | 317,092 tonnes of CO₂ equivalents | +5.0% |
| 1979 | 349,477 tonnes of CO₂ equivalents | +10.2% |
| 1980 | 343,040 tonnes of CO₂ equivalents | -1.8% |
| 1981 | 361,149 tonnes of CO₂ equivalents | +5.3% |
| 1982 | 389,261 tonnes of CO₂ equivalents | +7.8% |
| 1983 | 426,089 tonnes of CO₂ equivalents | +9.5% |
| 1984 | 438,242 tonnes of CO₂ equivalents | +2.9% |
| 1985 | 439,750 tonnes of CO₂ equivalents | +0.3% |
| 1986 | 487,577 tonnes of CO₂ equivalents | +10.9% |
| 1987 | 486,388 tonnes of CO₂ equivalents | -0.2% |
| 1988 | 525,366 tonnes of CO₂ equivalents | +8.0% |
| 1989 | 529,196 tonnes of CO₂ equivalents | +0.7% |
| 1990 | 550,663 tonnes of CO₂ equivalents | +4.1% |
| 1991 | 701,450 tonnes of CO₂ equivalents | +27.4% |
| 1992 | 756,727 tonnes of CO₂ equivalents | +7.9% |
| 1993 | 787,511 tonnes of CO₂ equivalents | +4.1% |
| 1994 | 755,936 tonnes of CO₂ equivalents | -4.0% |
| 1995 | 739,161 tonnes of CO₂ equivalents | -2.2% |
| 1996 | 618,849 tonnes of CO₂ equivalents | -16.3% |
| 1997 | 605,760 tonnes of CO₂ equivalents | -2.1% |
| 1998 | 848,070 tonnes of CO₂ equivalents | +40.0% |
| 1999 | 997,681 tonnes of CO₂ equivalents | +17.6% |
| 2000 | 755,627 tonnes of CO₂ equivalents | -24.3% |
| 2001 | 671,801 tonnes of CO₂ equivalents | -11.1% |
| 2002 | 591,099 tonnes of CO₂ equivalents | -12.0% |
| 2003 | 616,671 tonnes of CO₂ equivalents | +4.3% |
| 2004 | 509,966 tonnes of CO₂ equivalents | -17.3% |
| 2005 | 534,438 tonnes of CO₂ equivalents | +4.8% |
| 2006 | 524,919 tonnes of CO₂ equivalents | -1.8% |
| 2007 | 549,235 tonnes of CO₂ equivalents | +4.6% |
| 2008 | 541,416 tonnes of CO₂ equivalents | -1.4% |
| 2009 | 604,775 tonnes of CO₂ equivalents | +11.7% |
| 2010 | 563,269 tonnes of CO₂ equivalents | -6.9% |
| 2011 | 586,142 tonnes of CO₂ equivalents | +4.1% |
| 2012 | 585,538 tonnes of CO₂ equivalents | -0.1% |
| 2013 | 562,268 tonnes of CO₂ equivalents | -4.0% |
| 2014 | 574,562 tonnes of CO₂ equivalents | +2.2% |
| 2015 | 564,399 tonnes of CO₂ equivalents | -1.8% |
| 2016 | 590,944 tonnes of CO₂ equivalents | +4.7% |
| 2017 | 613,677 tonnes of CO₂ equivalents | +3.8% |
| 2018 | 612,144 tonnes of CO₂ equivalents | -0.2% |
| 2019 | 614,852 tonnes of CO₂ equivalents | +0.4% |
| 2020 | 537,507 tonnes of CO₂ equivalents | -12.6% |
| 2021 | 518,175 tonnes of CO₂ equivalents | -3.6% |
| 2022 | 468,710 tonnes of CO₂ equivalents | -9.5% |
| 2023 | 504,790 tonnes of CO₂ equivalents | +7.7% |
| 2024 | 442,131 tonnes of CO₂ equivalents | -12.4% |
Hong Kong compared with similar countries
- Hong Kong's 442,131 tonnes of CO₂ equivalents is below the median for high income countries, which is 2.56 million tonnes of CO₂ equivalents, 17% of the median. (67 countries reporting)
- Hong Kong's 442,131 tonnes of CO₂ equivalents is below the median for East Asia & Pacific, which is 1.57 million tonnes of CO₂ equivalents, 28% of the median. (32 countries reporting)
Biggest year-on-year movements
Years where Nitrous oxide emissions in Hong Kong changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1998 | +40.0% | 605,760 tonnes of CO₂ equivalents | 848,070 tonnes of CO₂ equivalents |
| 1991 | +27.4% | 550,663 tonnes of CO₂ equivalents | 701,450 tonnes of CO₂ equivalents |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1850s | 31,055 tonnes of CO₂ equivalents | 29,385 tonnes of CO₂ equivalents | 32,524 tonnes of CO₂ equivalents | 10 |
| 1860s | 33,698 tonnes of CO₂ equivalents | 32,759 tonnes of CO₂ equivalents | 34,630 tonnes of CO₂ equivalents | 10 |
| 1870s | 38,628 tonnes of CO₂ equivalents | 34,847 tonnes of CO₂ equivalents | 43,060 tonnes of CO₂ equivalents | 10 |
| 1880s | 45,213 tonnes of CO₂ equivalents | 43,635 tonnes of CO₂ equivalents | 46,667 tonnes of CO₂ equivalents | 10 |
| 1890s | 49,190 tonnes of CO₂ equivalents | 47,231 tonnes of CO₂ equivalents | 51,278 tonnes of CO₂ equivalents | 10 |
| 1900s | 54,717 tonnes of CO₂ equivalents | 51,798 tonnes of CO₂ equivalents | 57,890 tonnes of CO₂ equivalents | 10 |
| 1910s | 61,934 tonnes of CO₂ equivalents | 58,605 tonnes of CO₂ equivalents | 65,350 tonnes of CO₂ equivalents | 10 |
| 1920s | 69,671 tonnes of CO₂ equivalents | 66,121 tonnes of CO₂ equivalents | 73,252 tonnes of CO₂ equivalents | 10 |
| 1930s | 77,491 tonnes of CO₂ equivalents | 74,042 tonnes of CO₂ equivalents | 81,274 tonnes of CO₂ equivalents | 10 |
| 1940s | 100,900 tonnes of CO₂ equivalents | 82,366 tonnes of CO₂ equivalents | 123,500 tonnes of CO₂ equivalents | 10 |
| 1950s | 139,637 tonnes of CO₂ equivalents | 127,186 tonnes of CO₂ equivalents | 152,216 tonnes of CO₂ equivalents | 10 |
| 1960s | 176,762 tonnes of CO₂ equivalents | 155,588 tonnes of CO₂ equivalents | 205,659 tonnes of CO₂ equivalents | 10 |
| 1970s | 282,841 tonnes of CO₂ equivalents | 256,322 tonnes of CO₂ equivalents | 349,477 tonnes of CO₂ equivalents | 10 |
| 1980s | 442,606 tonnes of CO₂ equivalents | 343,040 tonnes of CO₂ equivalents | 529,196 tonnes of CO₂ equivalents | 10 |
| 1990s | 736,181 tonnes of CO₂ equivalents | 550,663 tonnes of CO₂ equivalents | 997,681 tonnes of CO₂ equivalents | 10 |
| 2000s | 589,995 tonnes of CO₂ equivalents | 509,966 tonnes of CO₂ equivalents | 755,627 tonnes of CO₂ equivalents | 10 |
| 2010s | 586,780 tonnes of CO₂ equivalents | 562,268 tonnes of CO₂ equivalents | 614,852 tonnes of CO₂ equivalents | 10 |
| 2020s | 494,263 tonnes of CO₂ equivalents | 442,131 tonnes of CO₂ equivalents | 537,507 tonnes of CO₂ equivalents | 5 |
Countries ranked near Hong Kong
- 149 Eswatini 502,823 tonnes of CO₂ equivalents compare
- 150 Lesotho 491,658 tonnes of CO₂ equivalents compare
- 151 North Macedonia 457,582 tonnes of CO₂ equivalents compare
- 153 Cyprus 360,982 tonnes of CO₂ equivalents compare
- 154 Jamaica 357,071 tonnes of CO₂ equivalents compare
- 155 Iceland 346,459 tonnes of CO₂ equivalents compare
More climate change data for Hong Kong
- Spring temperature anomalies 1.42 °C (2026)
- Summer temperature anomalies 0.441 °C (2026)
- Temperature anomalies by month 0.2868 °C (2026)
- Share of global CO₂ emissions and population 0.0% (2100)
- Population, total, annual growth rate -0.3349 % change on previous year (2025)
- Population, total, per unit of GDP 0 units per US$ of GDP (2025)
- Urban population, annual growth rate -0.3349 % change on previous year (2025)
- Urban population, per unit of GDP 0 units per US$ of GDP (2025)
- Urban population, per capita 1 units per person (2025)
- Precipitation anomalies, annual growth rate -76.56 % change on previous year (2025)
Frequently asked questions
- What is nitrous oxide emissions in Hong Kong?
- Nitrous oxide emissions in Hong Kong was 442,131 tonnes of CO₂ equivalents in 2024, according to Jones et al. (2025) – with major processing by Our World in Data.
- What is the highest nitrous oxide emissions recorded in Hong Kong?
- The highest recorded value was 997,681 tonnes of CO₂ equivalents in 1999.
- What is the lowest nitrous oxide emissions recorded in Hong Kong?
- The lowest recorded value was 29,385 tonnes of CO₂ equivalents in 1850.
- How does Hong Kong rank for nitrous oxide emissions?
- Hong Kong ranks 152nd out of 201 countries with data for 2024.
- Is nitrous oxide emissions rising or falling in Hong Kong?
- Over the last ten years it is down 23.0%. The long-run trend across the full record is volatile.
- Where does this Hong Kong data come from?
- The figures come from Jones et al. (2025) – with major processing by Our World in Data, published as part of Nitrous oxide emissions. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 175 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in tonnes of carbon dioxide-equivalents over a 100-year timescale.