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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 2024

Updated 12 February 2026
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pollutant year emissions (indexed to 1990)
Ammonia 1990 100
Ammonia 1991 101.1427011163712
Ammonia 1992 96.58047286790958
Ammonia 1993 95.27378385125175
Ammonia 1994 96.8978065331455
Ammonia 1995 95.23989696393727
Ammonia 1996 97.24896505077393
Ammonia 1997 100.47879010776069
Ammonia 1998 100.25680467109044
Ammonia 1999 98.04048459706031
Ammonia 2000 95.80735791521985
Ammonia 2001 95.01172004246222
Ammonia 2002 93.4826857197644
Ammonia 2003 91.90671617342427
Ammonia 2004 93.63144514504482
Ammonia 2005 91.25924658625937
Ammonia 2006 90.01881327616594
Ammonia 2007 88.81843229951141
Ammonia 2008 83.32271363224498
Ammonia 2009 84.50122999366832
Ammonia 2010 85.17254986951829
Ammonia 2011 85.15304209973
Ammonia 2012 84.351709485759
Ammonia 2013 83.10021939740801
Ammonia 2014 86.90149390216804
Ammonia 2015 87.96106371900842
Ammonia 2016 88.66718623954306
Ammonia 2017 90.06226887519816
Ammonia 2018 87.86806942654727
Ammonia 2019 88.18219385408486
Ammonia 2020 84.5670867572929
Ammonia 2021 86.72537259812094
Ammonia 2022 84.37292012050578
Ammonia 2023 85.58109342355458
Ammonia 2024 83.00955815461819
Nitrogen Oxides as NO2 1990 100
Nitrogen Oxides as NO2 1991 97.57432577952126
Nitrogen Oxides as NO2 1992 95.32595832852269
Nitrogen Oxides as NO2 1993 90.28586145716004
Nitrogen Oxides as NO2 1994 88.23703421743035
Nitrogen Oxides as NO2 1995 84.50556376402844
Nitrogen Oxides as NO2 1996 81.29477581432243
Nitrogen Oxides as NO2 1997 75.44418226472249
Nitrogen Oxides as NO2 1998 73.61248720556588
Nitrogen Oxides as NO2 1999 69.31712343399634
Nitrogen Oxides as NO2 2000 67.21063058080195
Nitrogen Oxides as NO2 2001 65.54883882715808
Nitrogen Oxides as NO2 2002 61.896699956120635
Nitrogen Oxides as NO2 2003 62.01445404428316
Nitrogen Oxides as NO2 2004 60.44049045038744
Nitrogen Oxides as NO2 2005 60.399941550271144
Nitrogen Oxides as NO2 2006 59.676443874325635
Nitrogen Oxides as NO2 2007 56.765097226498675
Nitrogen Oxides as NO2 2008 50.34296444466195
Nitrogen Oxides as NO2 2009 43.94388602718661
Nitrogen Oxides as NO2 2010 43.036453621956625
Nitrogen Oxides as NO2 2011 40.41821290100226
Nitrogen Oxides as NO2 2012 41.66033971049954
Nitrogen Oxides as NO2 2013 40.21143553745915
Nitrogen Oxides as NO2 2014 37.50454866838165
Nitrogen Oxides as NO2 2015 35.99105520627034
Nitrogen Oxides as NO2 2016 32.13317744907534
Nitrogen Oxides as NO2 2017 30.466287858392647
Nitrogen Oxides as NO2 2018 29.20780297878872
Nitrogen Oxides as NO2 2019 27.076006781940503
Nitrogen Oxides as NO2 2020 22.9963946850045
Nitrogen Oxides as NO2 2021 22.902718285605125
Nitrogen Oxides as NO2 2022 22.30312727723404
Nitrogen Oxides as NO2 2023 20.883230064058107
Nitrogen Oxides as NO2 2024 19.963661119867325
Non Methane VOC 1990 100
Non Methane VOC 1991 98.72391741018343
Non Methane VOC 1992 95.33202108026042
Non Methane VOC 1993 91.19865644274172
Non Methane VOC 1994 86.9322442071032
Non Methane VOC 1995 83.0027805413576
Non Methane VOC 1996 80.88803040351956
Non Methane VOC 1997 77.47788042042252
Non Methane VOC 1998 74.05045546287162
Non Methane VOC 1999 66.62986498430334
Non Methane VOC 2000 61.912684475302946
Non Methane VOC 2001 58.20441575083439
Non Methane VOC 2002 54.146905469839155
Non Methane VOC 2003 51.52572741790651
Non Methane VOC 2004 47.8677660728731
Non Methane VOC 2005 44.91289239340276
Non Methane VOC 2006 42.98009139873222
Non Methane VOC 2007 41.462200120685296
Non Methane VOC 2008 38.3272412966206
Non Methane VOC 2009 34.62279916744798
Non Methane VOC 2010 33.620214831776615
Non Methane VOC 2011 32.617170107921886
Non Methane VOC 2012 32.07159829948009
Non Methane VOC 2013 31.029718188708717
Non Methane VOC 2014 30.25172894804428
Non Methane VOC 2015 30.124105712689076
Non Methane VOC 2016 29.599203359863303
Non Methane VOC 2017 29.961618301427816
Non Methane VOC 2018 30.65595041804965
Non Methane VOC 2019 30.044238613772638
Non Methane VOC 2020 28.924755727774787
Non Methane VOC 2021 28.378250857352384
Non Methane VOC 2022 27.224469895250035
Non Methane VOC 2023 27.237573994994808
Non Methane VOC 2024 26.741319185167452
PM10 1990 100
PM10 1991 99.99646670573306
PM10 1992 95.1233521171584
PM10 1993 88.29043617620171
PM10 1994 83.79263536624592
PM10 1995 76.36224249690396
PM10 1996 75.35715777963775
PM10 1997 69.95915349058454
PM10 1998 67.01872824364294
PM10 1999 64.12632758430014
PM10 2000 60.07025386794551
PM10 2001 60.21123672174097
PM10 2002 52.3638385163425
PM10 2003 54.71760367086132
PM10 2004 51.917761619235826
PM10 2005 50.81726566959887
PM10 2006 50.747551294290275
PM10 2007 48.28560121459675
PM10 2008 44.54866534369967
PM10 2009 40.53382222673943
PM10 2010 42.595913172256914
PM10 2011 40.34711154857155
PM10 2012 39.03943921950875
PM10 2013 40.082870726545615
PM10 2014 38.92361872680209
PM10 2015 38.496682898848725
PM10 2016 38.1467206923889
PM10 2017 39.046395118103284
PM10 2018 38.65158381154218
PM10 2019 36.72893593322762
PM10 2020 32.19380280238366
PM10 2021 34.944738515893654
PM10 2022 34.47352531867691
PM10 2023 32.24112299715963
PM10 2024 31.14970028381307
PM2.5 1990 100
PM2.5 1991 100.2171980045383
PM2.5 1992 96.16007271195316
PM2.5 1993 89.29035542469973
PM2.5 1994 84.29420961772624
PM2.5 1995 75.40002384963991
PM2.5 1996 73.71608656635226
PM2.5 1997 68.87818993599136
PM2.5 1998 65.95427222022805
PM2.5 1999 63.13875645452012
PM2.5 2000 56.94566832296684
PM2.5 2001 55.405038960787934
PM2.5 2002 47.88517200064932
PM2.5 2003 47.577098845635376
PM2.5 2004 46.61830729437572
PM2.5 2005 45.94319804601429
PM2.5 2006 46.11610616411541
PM2.5 2007 43.40234297610519
PM2.5 2008 40.463158211114184
PM2.5 2009 36.47684089179258
PM2.5 2010 37.21480224758776
PM2.5 2011 35.424659455966946
PM2.5 2012 35.32724813827227
PM2.5 2013 35.284906351113406
PM2.5 2014 33.923557469785656
PM2.5 2015 33.184110201691084
PM2.5 2016 31.786410953773792
PM2.5 2017 31.864675025666138
PM2.5 2018 31.95477558506161
PM2.5 2019 30.359765138992657
PM2.5 2020 27.15187939869238
PM2.5 2021 28.12975840662896
PM2.5 2022 27.068233548596478
PM2.5 2023 25.654374725282906
PM2.5 2024 24.646432409238837
Sulphur Dioxide 1990 100
Sulphur Dioxide 1991 98.45028523573639
Sulphur Dioxide 1992 95.54971387951306
Sulphur Dioxide 1993 86.4018829417132
Sulphur Dioxide 1994 78.00708042249109
Sulphur Dioxide 1995 69.61656071161003
Sulphur Dioxide 1996 58.67777580394641
Sulphur Dioxide 1997 47.2240780157308
Sulphur Dioxide 1998 47.463890837879354
Sulphur Dioxide 1999 35.950934682023174
Sulphur Dioxide 2000 34.59049593507972
Sulphur Dioxide 2001 32.64947955298031
Sulphur Dioxide 2002 29.192613825561793
Sulphur Dioxide 2003 28.69038475140213
Sulphur Dioxide 2004 24.006387672945444
Sulphur Dioxide 2005 20.740915583575486
Sulphur Dioxide 2006 19.987907403937974
Sulphur Dioxide 2007 16.667282963922567
Sulphur Dioxide 2008 13.901692720637923
Sulphur Dioxide 2009 11.473014145719475
Sulphur Dioxide 2010 11.98143343216759
Sulphur Dioxide 2011 11.349219450340282
Sulphur Dioxide 2012 12.745745770135471
Sulphur Dioxide 2013 11.23972120010684
Sulphur Dioxide 2014 8.690265766377804
Sulphur Dioxide 2015 6.888687442546332
Sulphur Dioxide 2016 4.768414887725221
Sulphur Dioxide 2017 4.555448667562163
Sulphur Dioxide 2018 4.125635049900193
Sulphur Dioxide 2019 3.4557756704689093
Sulphur Dioxide 2020 3.0332204144663155
Sulphur Dioxide 2021 2.8031160757689113
Sulphur Dioxide 2022 2.785905911090324
Sulphur Dioxide 2023 2.642023892193031
Sulphur Dioxide 2024 2.4266930318282034