Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e), per in Hong Kong
Hong Kong: Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e), per was 0.0005 Mt CO2e per square kilometre in 2023. ▲ Rising
Latest (2023)
0.0005 Mt CO2e per square kilometre
Change on year
up 8.3%
World rank
4th
of 203 countries
All-time high
0.0009 Mt CO2e per square kilometre
in 1999
All-time low
0.0002 Mt CO2e per square kilometre
in 1970
Years of data
54
1970–2023
Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e), per in Hong Kong, 1970–2023
Source: Statizoid (derived). Measured in Mt CO2e per square kilometre.
Analysis
The most recent figure for nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per in Hong Kong is 0.0005 Mt CO2e per square kilometre, measured in 2023.
The figure is up 8.3% on the previous year and down 6.0% over ten years.
Over the whole period, nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per in Hong Kong peaked at 0.0009 Mt CO2e per square kilometre in 1999 and was at its lowest, 0.0002 Mt CO2e per square kilometre, in 1970.
That places Hong Kong 4th out of 203 countries with data for 2023, putting it in the top 10%.
The long-run direction has been consistently rising across the 54 years of available data.
Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e), per in Hong Kong, year by year
| Year | Mt CO2e per square kilometre | Change |
|---|---|---|
| 1970 | 0.0002 Mt CO2e per square kilometre | — |
| 1971 | 0.0002 Mt CO2e per square kilometre | +1.6% |
| 1972 | 0.0002 Mt CO2e per square kilometre | +4.6% |
| 1973 | 0.0002 Mt CO2e per square kilometre | -2.6% |
| 1974 | 0.0002 Mt CO2e per square kilometre | +0.0% |
| 1975 | 0.0002 Mt CO2e per square kilometre | +2.1% |
| 1976 | 0.0003 Mt CO2e per square kilometre | +7.8% |
| 1977 | 0.0003 Mt CO2e per square kilometre | +7.2% |
| 1978 | 0.0003 Mt CO2e per square kilometre | +5.3% |
| 1979 | 0.0003 Mt CO2e per square kilometre | +8.7% |
| 1980 | 0.0003 Mt CO2e per square kilometre | -2.1% |
| 1981 | 0.0003 Mt CO2e per square kilometre | +6.6% |
| 1982 | 0.0004 Mt CO2e per square kilometre | +9.4% |
| 1983 | 0.0004 Mt CO2e per square kilometre | +10.3% |
| 1984 | 0.0004 Mt CO2e per square kilometre | +3.6% |
| 1985 | 0.0004 Mt CO2e per square kilometre | +0.8% |
| 1986 | 0.0005 Mt CO2e per square kilometre | +11.7% |
| 1987 | 0.0005 Mt CO2e per square kilometre | -0.4% |
| 1988 | 0.0005 Mt CO2e per square kilometre | +8.8% |
| 1989 | 0.0005 Mt CO2e per square kilometre | +1.0% |
| 1990 | 0.0005 Mt CO2e per square kilometre | +4.3% |
| 1991 | 0.0007 Mt CO2e per square kilometre | +28.4% |
| 1992 | 0.0007 Mt CO2e per square kilometre | +8.2% |
| 1993 | 0.0008 Mt CO2e per square kilometre | +4.4% |
| 1994 | 0.0007 Mt CO2e per square kilometre | -4.1% |
| 1995 | 0.0007 Mt CO2e per square kilometre | -7.9% |
| 1996 | 0.0006 Mt CO2e per square kilometre | -16.5% |
| 1997 | 0.0005 Mt CO2e per square kilometre | -2.1% |
| 1998 | 0.0008 Mt CO2e per square kilometre | +41.1% |
| 1999 | 0.0009 Mt CO2e per square kilometre | +18.1% |
| 2000 | 0.0007 Mt CO2e per square kilometre | -24.5% |
| 2001 | 0.0006 Mt CO2e per square kilometre | -11.2% |
| 2002 | 0.0005 Mt CO2e per square kilometre | -12.2% |
| 2003 | 0.0006 Mt CO2e per square kilometre | +4.4% |
| 2004 | 0.0005 Mt CO2e per square kilometre | -17.6% |
| 2005 | 0.0005 Mt CO2e per square kilometre | +4.8% |
| 2006 | 0.0005 Mt CO2e per square kilometre | -1.8% |
| 2007 | 0.0005 Mt CO2e per square kilometre | +4.7% |
| 2008 | 0.0005 Mt CO2e per square kilometre | -1.5% |
| 2009 | 0.0006 Mt CO2e per square kilometre | +13.1% |
| 2010 | 0.0005 Mt CO2e per square kilometre | -6.0% |
| 2011 | 0.0005 Mt CO2e per square kilometre | +5.0% |
| 2012 | 0.0005 Mt CO2e per square kilometre | -0.1% |
| 2013 | 0.0005 Mt CO2e per square kilometre | -4.1% |
| 2014 | 0.0005 Mt CO2e per square kilometre | +2.1% |
| 2015 | 0.0005 Mt CO2e per square kilometre | -2.4% |
| 2016 | 0.0005 Mt CO2e per square kilometre | +4.7% |
| 2017 | 0.0006 Mt CO2e per square kilometre | +3.9% |
| 2018 | 0.0006 Mt CO2e per square kilometre | -0.1% |
| 2019 | 0.0006 Mt CO2e per square kilometre | +0.1% |
| 2020 | 0.0005 Mt CO2e per square kilometre | -4.1% |
| 2021 | 0.0005 Mt CO2e per square kilometre | -5.1% |
| 2022 | 0.0005 Mt CO2e per square kilometre | -12.3% |
| 2023 | 0.0005 Mt CO2e per square kilometre | +8.3% |
Hong Kong compared with similar countries
- Hong Kong's 0.0005 Mt CO2e per square kilometre is above the median for high income countries, which is 0 Mt CO2e per square kilometre, 12.7× the median. (77 countries reporting)
- Hong Kong's 0.0005 Mt CO2e per square kilometre is above the median for East Asia & Pacific, which is 0 Mt CO2e per square kilometre, 24.3× the median. (37 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 0.0003 Mt CO2e per square kilometre | 0.0002 Mt CO2e per square kilometre | 0.0003 Mt CO2e per square kilometre | 10 |
| 1980s | 0.0004 Mt CO2e per square kilometre | 0.0003 Mt CO2e per square kilometre | 0.0005 Mt CO2e per square kilometre | 10 |
| 1990s | 0.0007 Mt CO2e per square kilometre | 0.0005 Mt CO2e per square kilometre | 0.0009 Mt CO2e per square kilometre | 10 |
| 2000s | 0.0005 Mt CO2e per square kilometre | 0.0005 Mt CO2e per square kilometre | 0.0007 Mt CO2e per square kilometre | 10 |
| 2010s | 0.0005 Mt CO2e per square kilometre | 0.0005 Mt CO2e per square kilometre | 0.0006 Mt CO2e per square kilometre | 10 |
| 2020s | 0.0005 Mt CO2e per square kilometre | 0.0005 Mt CO2e per square kilometre | 0.0005 Mt CO2e per square kilometre | 4 |
Countries ranked near Hong Kong
- 1 Macao 0.0012 Mt CO2e per square kilometre compare
- 2 Gibraltar 0.0008 Mt CO2e per square kilometre compare
- 3 Singapore 0.0007 Mt CO2e per square kilometre compare
- 5 Bahrain 0.0003 Mt CO2e per square kilometre compare
- 6 Belgium 0.0002 Mt CO2e per square kilometre compare
- 7 Netherlands 0.0002 Mt CO2e per square kilometre compare
More environment data for Hong Kong
- Historical exposure to drought — Land soil moisture anomaly -5.98 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -5.54 Percentage change (2025)
- Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), annual 1.14 % change on previous year (2024)
- Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Power Industry (Energy) (Mt CO2e) 8.23 % change on previous year (2024)
- Methane (CH4) emissions from Power Industry (Energy) (Mt CO2e), per 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Power Industry (Energy) (Mt CO2e), per 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Transport (Energy) (Mt CO2e), annual 13.39 % change on previous year (2024)
- Methane (CH4) emissions from Transport (Energy) (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per in Hong Kong?
- Nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per in Hong Kong was 0.0005 Mt CO2e per square kilometre in 2023, according to Statizoid (derived).
- What is the highest nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per recorded in Hong Kong?
- The highest recorded value was 0.0009 Mt CO2e per square kilometre in 1999.
- What is the lowest nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per recorded in Hong Kong?
- The lowest recorded value was 0.0002 Mt CO2e per square kilometre in 1970.
- How does Hong Kong rank for nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per?
- Hong Kong ranks 4th out of 203 countries with data for 2023.
- Is nitrous oxide (n2o) emissions (total) excluding lulucf (mt co2e), per rising or falling in Hong Kong?
- Over the last ten years it is down 6.0%. The long-run trend across the full record is rising.
- Where does this Hong Kong data come from?
- The figures come from Statizoid (derived), published as part of Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e), per square kilometre. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 54 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e) ÷ Land area (sq. km)
Computed from
- Nitrous oxide (N2O) emissions (total) excluding LULUCF EDGAR (Emissions Database for Global Atmospheric Research) Community GHG Database, Joint Research Centre (JRC) - European Commission
- Land area FAOSTAT, Food and Agriculture Organization of the United Nations (FAO)
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Nitrous oxide (N2O) emissions (total) excluding LULUCF (Mt CO2e) divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.