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Statistical data set

Figure 7: UK annual emissions of nitrogen oxides by 2024 major emission sources: 1990, 2005, 2023 and 2024

Updated 12 February 2026
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source year emissions (million tonnes)
Total 1990 2.6960046156257254
Total 2005 1.6283852120305504
Total 2023 0.5630128464187457
Total 2024 0.5382212252395014
Road Transport 1990 1.1638137061627685
Road Transport 2005 0.6079767671385004
Road Transport 2023 0.17929350458240953
Road Transport 2024 0.16387899234463688
Energy Industries 1990 0.8164283064314568
Energy Industries 2005 0.48947098951106716
Energy Industries 2023 0.11449223911357707
Energy Industries 2024 0.10521764159492797
Industrial Combustion 1990 0.3137919200376277
Industrial Combustion 2005 0.20181384391146978
Industrial Combustion 2023 0.084575482380052
Industrial Combustion 2024 0.08314046037198537
Non-Road Transport 1990 0.08872041547027239
Non-Road Transport 2005 0.10203489608553355
Non-Road Transport 2023 0.06736581473211957
Non-Road Transport 2024 0.0702420211164155
Other 1990 0.31325026752359986
Other 2005 0.22708871538397948
Other 2023 0.11728580561058752
Other 2024 0.11574210981153575