Sector	2011 Emissions of NOX (kt)	% share
Agriculture	184871	1.8
Commercial, institutional and households	1309461	12.8
Energy production and distribution	2298969	22.5
Energy use in industry	1289151	12.6
Industrial processes	242783	2.4
Non-road transport	751399	7.3
Other	521	0.0
Road transport	4142743	40.5
Solvent and product use	52	0.0
Waste	12404	0.1