Emission summary data for Nitrous Oxide (kilotonne)
| Sectors | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Agriculture - field burning | 0.19 | 0.17 | 0.12 | 0.0042 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Agriculture - manure management | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10.0 | 9.9 | 10.0 | 9.8 | 9.7 | 9.6 | 9.7 | 9.7 | 9.6 | 9.6 | 9.5 | 9.5 | 9.4 | 9.4 |
| Agriculture - soils | 51 | 51 | 49 | 47 | 49 | 50 | 50 | 51 | 50 | 50 | 48 | 46 | 46 | 46 | 45 | 44 | 42 | 42 | 42 | 42 | 42 | 43 | 42 | 42 | 44 | 44 | 42 | 44 | 43 | 43 | 40 | 42 |
| Energy - fugitive emissions from fuels | 0.15 | 0.15 | 0.15 | 0.15 | 0.19 | 0.20 | 0.21 | 0.19 | 0.19 | 0.15 | 0.16 | 0.16 | 0.15 | 0.13 | 0.13 | 0.15 | 0.13 | 0.14 | 0.12 | 0.13 | 0.13 | 0.16 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.12 | 0.13 | 0.12 | 0.10 | 0.084 |
| Energy - Mobile Combustion | 5.5 | 5.4 | 5.4 | 5.7 | 6.2 | 6.8 | 6.4 | 6.4 | 6.4 | 6.4 | 6.3 | 6.0 | 5.9 | 5.6 | 5.4 | 5.2 | 4.9 | 4.8 | 4.1 | 3.8 | 3.8 | 3.8 | 3.9 | 4.0 | 4.1 | 4.3 | 4.4 | 4.5 | 4.5 | 4.4 | 3.8 | 4.1 |
| Energy - stationary combustion | 6.7 | 6.8 | 6.5 | 6.1 | 5.8 | 5.5 | 5.4 | 5.0 | 5.2 | 4.9 | 5.0 | 5.3 | 5.1 | 5.1 | 5.0 | 5.0 | 5.1 | 4.8 | 4.6 | 4.2 | 4.3 | 4.2 | 4.7 | 4.6 | 4.2 | 4.1 | 3.5 | 3.4 | 3.4 | 3.4 | 3.4 | 3.4 |
| Industrial processes and product use | 82 | 83 | 68 | 55 | 55 | 50 | 50 | 50 | 51 | 19 | 20 | 18 | 12 | 11 | 15 | 12 | 10 | 12 | 11 | 6.6 | 7.0 | 3.9 | 3.1 | 2.9 | 3.0 | 2.9 | 2.9 | 3.0 | 2.9 | 3.0 | 2.7 | 2.6 |
| Land use, land use change and forestry | 7.2 | 7.2 | 7.1 | 7.0 | 6.9 | 6.9 | 6.7 | 6.7 | 6.6 | 6.4 | 6.3 | 6.2 | 6.1 | 6.1 | 5.9 | 5.8 | 5.7 | 5.6 | 5.5 | 5.4 | 5.3 | 5.3 | 5.2 | 5.2 | 5.0 | 5.0 | 5.0 | 4.9 | 5.0 | 5.0 | 4.9 | 4.9 |
| Waste | 3.3 | 3.3 | 3.5 | 3.5 | 3.6 | 3.6 | 3.8 | 3.8 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.4 | 4.4 | 4.6 | 4.5 | 4.7 | 5.1 | 5.2 | 5.2 | 5.3 | 5.6 | 5.6 | 5.7 | 5.9 | 5.8 | 5.9 | 5.8 | 6.0 |