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Statistical data set

Figure 1: Long term trends in emissions of PM10, PM2.5, nitrogen oxides, ammonia (NH3), non-methane volatile organic compounds (NMVOCs) and sulphur dioxide in the UK: 1990 to 2023

Updated 13 March 2025
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pollutant year emissions (indexed to 1990)
Ammonia 1990 100
Ammonia 1991 101.1951165
Ammonia 1992 96.67823099
Ammonia 1993 95.37492174
Ammonia 1994 97.00045974
Ammonia 1995 95.34859687
Ammonia 1996 97.31615148
Ammonia 1997 100.5748031
Ammonia 1998 100.3770388
Ammonia 1999 98.14061702
Ammonia 2000 95.99041811
Ammonia 2001 95.25289891
Ammonia 2002 93.78453207
Ammonia 2003 92.19729659
Ammonia 2004 93.91805214
Ammonia 2005 91.56767775
Ammonia 2006 90.36959716
Ammonia 2007 89.11638922
Ammonia 2008 83.72387698
Ammonia 2009 84.71520924
Ammonia 2010 85.30048303
Ammonia 2011 85.30819845
Ammonia 2012 84.94833484
Ammonia 2013 83.64736418
Ammonia 2014 87.43983658
Ammonia 2015 88.29957242
Ammonia 2016 89.02142878
Ammonia 2017 90.11109282
Ammonia 2018 88.6803854
Ammonia 2019 88.61009318
Ammonia 2020 85.79862615
Ammonia 2021 87.70335359
Ammonia 2022 85.21617782
Ammonia 2023 86.21798869
Nitrogen Oxides as NO2 1990 100
Nitrogen Oxides as NO2 1991 97.69736758
Nitrogen Oxides as NO2 1992 95.48275459
Nitrogen Oxides as NO2 1993 90.68085618
Nitrogen Oxides as NO2 1994 89.40904328
Nitrogen Oxides as NO2 1995 86.10122383
Nitrogen Oxides as NO2 1996 82.7608619
Nitrogen Oxides as NO2 1997 77.02201421
Nitrogen Oxides as NO2 1998 75.1604185
Nitrogen Oxides as NO2 1999 71.51844007
Nitrogen Oxides as NO2 2000 69.03294094
Nitrogen Oxides as NO2 2001 67.4624365
Nitrogen Oxides as NO2 2002 64.20596601
Nitrogen Oxides as NO2 2003 63.39839811
Nitrogen Oxides as NO2 2004 61.6349047
Nitrogen Oxides as NO2 2005 61.24472551
Nitrogen Oxides as NO2 2006 59.38018309
Nitrogen Oxides as NO2 2007 56.99438707
Nitrogen Oxides as NO2 2008 51.23602007
Nitrogen Oxides as NO2 2009 45.10428642
Nitrogen Oxides as NO2 2010 44.0802609
Nitrogen Oxides as NO2 2011 41.18099486
Nitrogen Oxides as NO2 2012 42.22779902
Nitrogen Oxides as NO2 2013 40.5008639
Nitrogen Oxides as NO2 2014 37.63866025
Nitrogen Oxides as NO2 2015 35.99376201
Nitrogen Oxides as NO2 2016 32.4327647
Nitrogen Oxides as NO2 2017 30.72166632
Nitrogen Oxides as NO2 2018 29.55888402
Nitrogen Oxides as NO2 2019 27.552992
Nitrogen Oxides as NO2 2020 23.64526574
Nitrogen Oxides as NO2 2021 23.45209871
Nitrogen Oxides as NO2 2022 22.56356467
Nitrogen Oxides as NO2 2023 21.30350409
Non Methane VOC 1990 100
Non Methane VOC 1991 98.71967472
Non Methane VOC 1992 95.32569806
Non Methane VOC 1993 91.20202935
Non Methane VOC 1994 86.95522994
Non Methane VOC 1995 83.05188682
Non Methane VOC 1996 80.93175752
Non Methane VOC 1997 77.52071153
Non Methane VOC 1998 74.09278092
Non Methane VOC 1999 66.69877912
Non Methane VOC 2000 61.97530292
Non Methane VOC 2001 58.29711571
Non Methane VOC 2002 54.28391249
Non Methane VOC 2003 51.65341411
Non Methane VOC 2004 48.02848182
Non Methane VOC 2005 45.06269464
Non Methane VOC 2006 43.1093168
Non Methane VOC 2007 41.61723547
Non Methane VOC 2008 38.54671059
Non Methane VOC 2009 34.84011007
Non Methane VOC 2010 33.87598007
Non Methane VOC 2011 32.88447438
Non Methane VOC 2012 32.37319943
Non Methane VOC 2013 31.37922822
Non Methane VOC 2014 30.62150005
Non Methane VOC 2015 30.549426
Non Methane VOC 2016 29.94903567
Non Methane VOC 2017 30.27148511
Non Methane VOC 2018 31.08342926
Non Methane VOC 2019 30.42671941
Non Methane VOC 2020 29.32261995
Non Methane VOC 2021 28.62941349
Non Methane VOC 2022 27.38267445
Non Methane VOC 2023 27.01768069
PM10 1990 100
PM10 1991 99.23239461
PM10 1992 93.03995687
PM10 1993 85.89156868
PM10 1994 80.75463062
PM10 1995 74.22605946
PM10 1996 73.73213633
PM10 1997 68.5894511
PM10 1998 65.20733237
PM10 1999 63.03135545
PM10 2000 59.50808717
PM10 2001 60.62379356
PM10 2002 52.82871987
PM10 2003 56.10215614
PM10 2004 51.53997377
PM10 2005 50.03852889
PM10 2006 48.58011065
PM10 2007 45.62783268
PM10 2008 41.68544906
PM10 2009 38.24066591
PM10 2010 40.73787047
PM10 2011 37.90512076
PM10 2012 36.44241676
PM10 2013 38.34472941
PM10 2014 36.79559755
PM10 2015 36.039407
PM10 2016 36.28923424
PM10 2017 37.73751365
PM10 2018 36.54201698
PM10 2019 35.57788345
PM10 2020 31.173826
PM10 2021 32.96642475
PM10 2022 33.07132551
PM10 2023 30.34477972
PM2.5 1990 100
PM2.5 1991 99.31217064
PM2.5 1992 94.64830237
PM2.5 1993 87.91053718
PM2.5 1994 83.44374627
PM2.5 1995 75.21976379
PM2.5 1996 73.54691081
PM2.5 1997 68.73153518
PM2.5 1998 65.79030727
PM2.5 1999 63.47675068
PM2.5 2000 57.29240132
PM2.5 2001 56.13273161
PM2.5 2002 49.16519568
PM2.5 2003 48.53290891
PM2.5 2004 46.88273112
PM2.5 2005 45.99622427
PM2.5 2006 45.08614788
PM2.5 2007 42.37824661
PM2.5 2008 39.43963621
PM2.5 2009 35.62403926
PM2.5 2010 36.12132178
PM2.5 2011 33.92940078
PM2.5 2012 33.99162528
PM2.5 2013 34.05027877
PM2.5 2014 32.39043483
PM2.5 2015 31.54850642
PM2.5 2016 30.40788424
PM2.5 2017 30.5191727
PM2.5 2018 30.57512137
PM2.5 2019 29.23189269
PM2.5 2020 26.15394326
PM2.5 2021 27.00186941
PM2.5 2022 26.07285218
PM2.5 2023 24.45220332
Sulphur Dioxide 1990 100
Sulphur Dioxide 1991 98.32545804
Sulphur Dioxide 1992 95.3637856
Sulphur Dioxide 1993 86.38917342
Sulphur Dioxide 1994 78.38513046
Sulphur Dioxide 1995 70.22996216
Sulphur Dioxide 1996 59.38702513
Sulphur Dioxide 1997 48.06176127
Sulphur Dioxide 1998 48.23201548
Sulphur Dioxide 1999 37.07111993
Sulphur Dioxide 2000 35.53050539
Sulphur Dioxide 2001 33.60284577
Sulphur Dioxide 2002 30.3485561
Sulphur Dioxide 2003 29.60600928
Sulphur Dioxide 2004 24.8489132
Sulphur Dioxide 2005 21.57740576
Sulphur Dioxide 2006 20.42352476
Sulphur Dioxide 2007 17.77795616
Sulphur Dioxide 2008 14.88005331
Sulphur Dioxide 2009 12.36606434
Sulphur Dioxide 2010 12.57984711
Sulphur Dioxide 2011 11.73025825
Sulphur Dioxide 2012 13.08266806
Sulphur Dioxide 2013 11.53295981
Sulphur Dioxide 2014 8.908897459
Sulphur Dioxide 2015 6.990350827
Sulphur Dioxide 2016 4.942120962
Sulphur Dioxide 2017 4.747352115
Sulphur Dioxide 2018 4.330395155
Sulphur Dioxide 2019 3.675525933
Sulphur Dioxide 2020 3.116562132
Sulphur Dioxide 2021 2.87404817
Sulphur Dioxide 2022 2.842668949
Sulphur Dioxide 2023 2.698865458