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general:trends:emission_trends_nitrogen_oxide [2025/03/17 18:13] – vosengeneral:trends:emission_trends_nitrogen_oxide [2025/04/09 15:05] (current) – [Table] vosen
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 ===== Main drivers ===== ===== Main drivers =====
  
-NO<sub>x</sub> **total emissions** show a falling trend from 1990 onwards, with emission **reductions of 67%** between 1990 and 2022 and steadily falling emissions in the last years. +NO<sub>x</sub> **total emissions** show a falling trend from 1990 onwards, with emission **reductions of 70.3%** between 1990 and 2023 and steadily falling emissions in the last years. 
  
-The Main Driver for NO<sub>x</sub> emissions is **Fuel Combustion (NFR 1.A)** with over 91% of 1990 emissions and a 70% reduction from 1990 to 2022. More than half of the 1990 emissions from **Fuel Combustion (NFR 1.A)** and a similar reduction (-76%) between 1990 and 2022 comes from **Road Transportation (NFR 1.A.3.b)**, mainly due to constantly improving fuels and increasingly stricter regulations resulting in technical improvements. +The Main Driver for NO<sub>x</sub> emissions is **Fuel Combustion (NFR 1.A)** with over 91% of 1990 emissions and a 73% reduction from 1990 to 2023. More than half of the 1990 emissions from **Fuel Combustion (NFR 1.A)** and a similar reduction (-79%) between 1990 and 2023 comes from **Road Transportation (NFR 1.A.3.b)**, mainly due to constantly improving fuels and increasingly stricter regulations resulting in technical improvements. 
  
-The rest of the 1990 emissions mainly comes from **Energy Industries (NFR 1.A.1)** with a 21% share of 1990 Fuel Combustion (NFR 1.A) emissions and a 60% reduction and to a lesser extend from **Manufacturing Industries and Construction (NFR 1.A.2)** with an 10% share and 73% reduction followed by **Other Sectors (NFR 1.A.4)** with a share of 8% and a 43% reduction between 1990 and 2022. For **Manufacturing Industries and Construction (NFR 1.A.2)** some emissions were reassigned to the **Industrial Processes (NRF 2)** starting from the year 2000, leading to lower emissions from the energy sector and a similar rise in the Industrial processes.+The rest of the 1990 emissions mainly comes from **Energy Industries (NFR 1.A.1)** with a 21% share of 1990 Fuel Combustion (NFR 1.A) emissions and a 68% reduction and to a lesser extend from **Manufacturing Industries and Construction (NFR 1.A.2)** with an 10% share and 76% reduction followed by **Other Sectors (NFR 1.A.4)** with a share of 8% and a 46% reduction between 1990 and 2023. For **Manufacturing Industries and Construction (NFR 1.A.2)** some emissions were reassigned to the **Industrial Processes (NRF 2)** starting from the year 2000, leading to lower emissions from the energy sector and a similar rise in the Industrial processes.
  
-__Table: NO<sub>x</sub> emissions 1990-2022, in kilotonnes [kt]__+__Table: NO<sub>x</sub> emissions 1990-2023, in kilotonnes [kt]__
  
-^                                                                                                                                       ||||||||||||||||^  Trend: latest compared to                   || +^                                                                                                                                              |||||||||||||||||^  Trend: latest compared to                   || 
-^  1990  ^  1995  ^  2000  ^  2005  ^  2010  ^  2011  ^  2012  ^  2013  ^  2014  ^  2015  ^  2016  ^  2017  ^  2018  ^  2019  ^  2020  ^  2021  ^ 2022  ^  1990                       ^  previous year  ^ +^  1990  ^  1995  ^  2000  ^  2005  ^  2010  ^  2011  ^  2012  ^  2013  ^  2014  ^  2015  ^  2016  ^  2017  ^  2018  ^  2019  ^  2020  ^  2021  ^ 2022  ^ 2023  ^  1990                       ^  previous year  ^ 
-|  2,842 |  2,167 |  1,866 |  1,599 |  1,456 |  1,433 |  1,435 |  1,433 |  1,390 |  1,375 |  1,335 |  1,278 |  1,207 |  1,117 |    983 |    965 |   942 |  -66.9%                     |  -2,4%          |+|  2 846 |  2 171 |  1 869 |  1 602 |  1 461 |  1 439 |  1 441 |  1 440 |  1 394 |  1 381 |  1 341 |  1 278 |  1 207 |  1 116 |    983 |    964 |   927 |   845 |  -66.9%                     |  -2.4%          |
  
 {{ :general:trends:iir_nox_trend_2025.png?direct&800 | trend of NO<sub>x</sub> emissions, by sector**}} {{ :general:trends:iir_nox_trend_2025.png?direct&800 | trend of NO<sub>x</sub> emissions, by sector**}}
 {{ :general:trends:iir_2025_nox_trend_from_2005.png?direct&800 | trend of NO<sub>x</sub> emissions, by sector, from 2005}} {{ :general:trends:iir_2025_nox_trend_from_2005.png?direct&800 | trend of NO<sub>x</sub> emissions, by sector, from 2005}}