Key Category Analysis - NOx

Last updated on 10 Dec 2013 11:53 (cf. Authors)

The tables below show detailed information on how the key categories for NOx were calculated.

Level

Source Emissions in 2011 (Gg) Proportion NOx
1.A.1.a Public Electricity and Heat Production 288.60 22.40% 22.40%
1.A.3.b.iii Road Transport: Heavy duty vehicles 238.49 18.51% 40.91%
1.A.3.b.i Road Transport: Passenger cars 203.14 15.77% 56.68%
1.A.2.f.i Stationary Combustion in Manufacturing Industries and Construction: Other 81.48 6.32% 63.01%
4.D.1.a Synthetic N-fertilizers 70.44 5.47% 68.47%
1.A.4.b.i Residential: Stationary plants 57.54 4.47% 72.94%
4.D.2.a Farm-level agricultural operations including storage. handling and transport of agricultural products 36.91 2.87% 75.80%
1.A.4.c.ii Agriculture/Forestry/Fishing: Off-road Vehicles and Other Machinery 36.85 2.86% 78.66%
1.A.3.b.ii Road Transport: Light duty vehicles 36.07 2.80% 81.46%
2.B.2 Nitric Acid Production 24.73 1.92% 83.38%
1.A.4.a.i Commercial / Institutional: Stationary 21.75 1.69% 85.07%
2.C.1 Iron and Steel Production 20.80 1.61% 86.69%
1.A.1.c Manufacture of Solid Fuels and Other Energy Industries 19.75 1.53% 88.22%
2.A.1 Cement Production 18.93 1.47% 89.69%
1.A.2.f.ii Mobile Combustion in Manufacturing Industries and Construction 17.66 1.37% 91.06%
1.A.1.b Petroleum refining 16.66 1.29% 92.35%
1.A.3.c Railways 15.36 1.19% 93.54%
1.A.3.d.ii National Navigation (Shipping) 14.34 1.11% 94.66%
2.A.7.d Other Mineral products 13.79 1.07% 95.73%

Trend

Source Emissions in 1990 (Gg) Emissions in 2011 (Gg) Contribution to trend NOx
1.A.3.b.i Road Transport:. Passenger cars 856.16 203.14 34.44% 34.44%
1.A.3.b.iii Road Transport:. Heavy duty vehicles 452.63 238.49 14.20% 48.63%
1.A.1.a Public Electricity and Heat Production 464.36 288.60 13.22% 61.86%
1.A.2.f.i Stationary Combustion in Manufacturing Industries and Construction: Other 273.42 81.48 10.49% 72.35%
1.A.1.c Manufacture of Solid Fuels and Other Energy Industries 107.18 19.75 4.49% 76.83%
1.A.4.b.i Residential: Stationary plants 90.29 57.54 2.53% 79.36%
1.A.2.a Stationary Combustion in Manufacturing Industries and Construction: Iron and Steel 51.18 3.81 2.31% 81.67%
4.D.1.a Synthetic N-fertilizers 85.31 70.44 1.90% 85.57%
1.A.5.b Other. Mobile (Including military. land based and recreational boats) 40.52 5.30 1.76% 85.33%
1.A.2.f.ii Mobile Combustion in Manufacturing Industries and Construction 46.64 17.66 1.67% 87.00%
1.A.4.c.ii Agriculture/Forestry/Fishing: Off-road Vehicles and Other Machinery 58.37 36.85 1.64% 88.65%
1.A.3.c Railways 44.47 15.36 1.64% 90.29%
1.A.4.a.i Commercial / Institutional: Stationary 47.49 21.75 1.59% 91.88%
1.A.3.d.ii National Navigation (Shipping) 38.70 14.34 1.40% 93.28%
1.A.1.b Petroleum refining 36.84 16.66 1.24% 94.52%
4.D.2.a Farm-level agricultural operations including storage, handling and transport of agricultural products 45.89 36.91 1.05% 95.57%
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