Statistical data set
Figure 1: Annual mean concentrations of NO2 in the UK, 1990 to 2023
Updated 30 April 2024
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| Site type | Year | Mean NO2 concentration (µg/m3) | 95% confidence interval for 'All sites' (+/-) |
|---|---|---|---|
| Rural Background | 1997 | 17.68694828 | 15.8364768 |
| Rural Background | 1998 | 14.4834846 | 6.125076392 |
| Rural Background | 1999 | 15.95375627 | 14.93605685 |
| Rural Background | 2000 | 13.97120408 | 4.934370488 |
| Rural Background | 2001 | 15.47470861 | 5.145206833 |
| Rural Background | 2002 | 12.93462703 | 4.987932702 |
| Rural Background | 2003 | 14.94028072 | 4.744292817 |
| Rural Background | 2004 | 11.21378724 | 3.030747839 |
| Rural Background | 2005 | 10.35510578 | 2.719221586 |
| Rural Background | 2006 | 10.44930853 | 2.875297269 |
| Rural Background | 2007 | 10.4520945 | 2.476688079 |
| Rural Background | 2008 | 8.953736454 | 2.154343993 |
| Rural Background | 2009 | 8.994046701 | 2.149733047 |
| Rural Background | 2010 | 9.371706814 | 2.714495252 |
| Rural Background | 2011 | 9.226400456 | 2.727276706 |
| Rural Background | 2012 | 9.731611539 | 3.114814091 |
| Rural Background | 2013 | 8.675177715 | 2.89348929 |
| Rural Background | 2014 | 7.979916796 | 2.549859788 |
| Rural Background | 2015 | 7.038872606 | 2.388114728 |
| Rural Background | 2016 | 8.671214984 | 2.463093039 |
| Rural Background | 2017 | 7.583856868 | 2.442096098 |
| Rural Background | 2018 | 7.157888036 | 2.045086196 |
| Rural Background | 2019 | 7.184724211 | 2.247338349 |
| Rural Background | 2020 | 5.526065486 | 1.909699961 |
| Rural Background | 2021 | 5.758472264 | 1.819504346 |
| Rural Background | 2022 | 6.041750517 | 1.726253665 |
| Rural Background | 2023 | 5.1746023 | 1.882617452 |
| Urban Background | 1990 | 53.79893865 | 13.87085802 |
| Urban Background | 1991 | 58.69095428 | 13.33657926 |
| Urban Background | 1992 | 59.75299844 | 8.059958077 |
| Urban Background | 1993 | 52.20461276 | 4.375017466 |
| Urban Background | 1994 | 49.03697708 | 3.611386537 |
| Urban Background | 1995 | 48.02974649 | 3.618984473 |
| Urban Background | 1996 | 47.37690938 | 3.20269634 |
| Urban Background | 1997 | 46.04241651 | 3.010243786 |
| Urban Background | 1998 | 40.67055016 | 2.929733038 |
| Urban Background | 1999 | 39.70149469 | 3.065935077 |
| Urban Background | 2000 | 35.87412261 | 2.658958283 |
| Urban Background | 2001 | 35.67034383 | 2.319525631 |
| Urban Background | 2002 | 32.70588269 | 2.349380894 |
| Urban Background | 2003 | 35.09244421 | 2.72964339 |
| Urban Background | 2004 | 32.24445677 | 2.774715913 |
| Urban Background | 2005 | 32.22305387 | 3.179781277 |
| Urban Background | 2006 | 31.66649107 | 3.162791759 |
| Urban Background | 2007 | 28.23306267 | 2.938051991 |
| Urban Background | 2008 | 28.04246969 | 2.696060514 |
| Urban Background | 2009 | 28.8757873 | 2.930472308 |
| Urban Background | 2010 | 31.09338229 | 3.406624974 |
| Urban Background | 2011 | 26.72221089 | 3.120358809 |
| Urban Background | 2012 | 26.57914912 | 3.142850063 |
| Urban Background | 2013 | 25.27971525 | 2.961958217 |
| Urban Background | 2014 | 24.79922863 | 3.330192021 |
| Urban Background | 2015 | 22.89273206 | 2.741444321 |
| Urban Background | 2016 | 23.3226594 | 2.602602094 |
| Urban Background | 2017 | 21.74204695 | 2.535994766 |
| Urban Background | 2018 | 20.00237934 | 2.085446664 |
| Urban Background | 2019 | 19.56350789 | 2.062295602 |
| Urban Background | 2020 | 15.06691545 | 1.467950834 |
| Urban Background | 2021 | 15.86556864 | 1.558668479 |
| Urban Background | 2022 | 15.64730999 | 1.404311156 |
| Urban Background | 2023 | 14.22474915 | 1.223586641 |
| Urban Traffic | 1997 | 59.71508819 | 9.117784774 |
| Urban Traffic | 1998 | 59.01919785 | 9.188619851 |
| Urban Traffic | 1999 | 61.81444003 | 8.149121992 |
| Urban Traffic | 2000 | 57.25702421 | 8.084417915 |
| Urban Traffic | 2001 | 54.31035184 | 6.868613377 |
| Urban Traffic | 2002 | 49.40470162 | 7.618837914 |
| Urban Traffic | 2003 | 54.82327561 | 9.971699526 |
| Urban Traffic | 2004 | 52.18202624 | 9.043168634 |
| Urban Traffic | 2005 | 53.62006549 | 9.240958655 |
| Urban Traffic | 2006 | 54.20622553 | 10.00603831 |
| Urban Traffic | 2007 | 52.73554114 | 10.64478339 |
| Urban Traffic | 2008 | 49.87652951 | 9.214010935 |
| Urban Traffic | 2009 | 45.7991512 | 8.027927251 |
| Urban Traffic | 2010 | 46.22733733 | 7.305950172 |
| Urban Traffic | 2011 | 41.16570888 | 7.054604836 |
| Urban Traffic | 2012 | 41.44028526 | 6.794303052 |
| Urban Traffic | 2013 | 38.88387952 | 6.265297433 |
| Urban Traffic | 2014 | 38.36004103 | 7.073432481 |
| Urban Traffic | 2015 | 36.54008902 | 5.154579912 |
| Urban Traffic | 2016 | 37.64795643 | 4.227101277 |
| Urban Traffic | 2017 | 33.67734589 | 3.340826551 |
| Urban Traffic | 2018 | 32.79977395 | 3.200437361 |
| Urban Traffic | 2019 | 31.07882033 | 2.619739585 |
| Urban Traffic | 2020 | 22.92554354 | 1.866579691 |
| Urban Traffic | 2021 | 24.75897555 | 2.030023994 |
| Urban Traffic | 2022 | 23.56171005 | 1.834012679 |
| Urban Traffic | 2023 | 21.84333578 | 1.827225821 |