Nitrogen oxide emissions (i53)

  •  30/11/2023
  • objective 
  •  assessment 

In 2021, nitrogen oxide emissions amounted to 142.1 thousand tonnes of nitrogen dioxide in Belgium. To achieve the sustainable development goal by 2030, this figure must decrease by 59% between 2005 and 2030. This objective will be reached by continuing the trend since 2000 (data available in November 2023). The nitrogen oxide emissions are therefore developing favourably.

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Nitrogen oxide emissions - Belgium - trend assessment

thousand tonnes NO2

 20002005201020152020202120252030
observations358.6328.8249.8200.7139.2142.1----
trend and extrapolation (November 2023)370.1314.6250.5194.4148.5140.6118.6104.0
objective 2030134.8134.8134.8134.8134.8134.8134.8134.8

IRCEL/CELINE (2023), Belgian submission to the convention LRTAP - March 15, 2023, http://cdr.eionet.europa.eu/be/un/clrtap (consulted on 20/03/2023); FPB calculations.

Nitrogen oxide emissions - Belgium

thousand tonnes NO2

 199020002005201020152016202020212021//19902021//2016
Belgium422.4358.6328.8249.8200.7188.8139.2142.1-3.5-5.5
//: Average Growth Rates

IRCEL/CELINE (2023), Belgian submission to the convention LRTAP - March 15, 2023, http://cdr.eionet.europa.eu/be/un/clrtap (consulted on 20/03/2023).

Nitrogen oxide emissions - EU27

million tonnes NO2

 19902000200520102015201920202020//19902020//2015
EU2715.111.510.78.67.36.25.6-3.3-5.2
//: Average Growth Rates

EEA (2023), Air pollutant emissions data viewer (LRTAP Convention), https://www.eea.europa.eu/data-and-maps/dashboards/air-pollutant-emissions-data-viewer-4 (consulted on 20/03/2023).

Nitrogen oxide emissions - Belgium and international comparison

kilograms NO2 per capita

 199020002005201020152016202020212021//19902021//20162020//2015
Belgium42.435.031.422.917.816.712.112.3-3.9-6.0-7.5
EU2736.126.824.619.616.415.812.512.6-3.3-4.5-5.3
//: Average Growth Rates

IRCEL/CELINE (2023), Belgian submission to the convention LRTAP - March 15, 2023, http://cdr.eionet.europa.eu/be/un/clrtap, EEA (2023), Air pollutant emissions data viewer (LRTAP Convention), https://www.eea.europa.eu/data-and-maps/dashboards/air-pollutant-emissions-data-viewer-4 and on Eurostat (2023), Population change - Demographic balance and crude rates at national level, Population on 1 January [demo_gind], https://ec.europa.eu/eurostat (consulted on 20/03/2023); calculations FPB.

Nitrogen oxide emissions by region - Belgium

kilograms NO2 per capita

 199020002005201020152016202020212021//19902021//2016
Brussels-Capital Region10.58.78.45.84.74.52.82.7-4.3-9.4
Flemish Region45.036.432.624.719.117.912.613.0-3.9-6.3
Walloon Region47.140.136.125.019.818.514.114.3-3.8-5.1
//: Average Growth Rates

Bruxelles environnement (2023), direct communication; Vlaamse Milieumaatschappij (2023), https://www.vmm.be/data/internationale-rapporteringen (consulted on 20/03/2023); Service public de Wallonie (2023), direct communication; Eurostat (2023), Population change - Demographic balance and crude rates at national level, Population on 1 January [demo_gind], https://ec.europa.eu/eurostat (consulted on 20/03/2023); calculations FPB.

Definition: Nitrogen oxide emissions (NOx) measure the total NOx emissions on Belgian territory, expressed in kilotonnes of nitrogen dioxide (kt NO2). NOx is emitted mainly during the combustion of fossil fuels in engines, boilers and industrial processes. Data are compiled by the Interregional Environment Agency and are available on the website of the European Environment Agency.

To make a comparison between Belgium and the EU27, emissions are calculated in kilograms of emissions per capita.

Goal: Nitrogen oxide emissions must decrease by 59% between 2005 and 2030.

The Sustainable Development Goals or SDGs adopted by the UN in 2015 include target 11.6: “By 2030, reduce the adverse per capita environmental impact of cities, including by paying special attention to air quality and municipal and other waste management.”

Following the revision of the Gothenburg Protocol in 2012 (UNECE, 2012), Directive (EU) 2016/2284 sets emission reduction targets for some atmospheric pollutants (Official Journal of the European Union, 17/12/2016). From 2020 onwards, Belgium's NOx emissions must be 41% lower than in 2005. From 2030 onwards, they must be 59% lower. Emissions related to agriculture (livestock manure and agricultural soil management, i.e. 8% of the total in 2018) are not covered by this Directive.

International comparison: between 1990 and 2021, the decrease in nitrogen oxide emissions in Belgium (-66%) was almost equivalent to that observed in the EU27 (-63%). With regard to average emissions per capita in 2021, NOx emissions amounted to 12,3 kg/capita in Belgium, slightly below the European average of 12.6 kg/capita. When Member States are divided into three groups, Belgium is part of the group with average performance and is below the European average in 2021. In that year, Malta ranked first with 8,2 kg/capita and Luxembourg last with 22,4 kg/capita.

UN indicator: the selected indicator does not correspond to any monitoring indicator for the SDGs but is related to target 11.6., which requests to pay “special attention to air quality”.

Sources

  • General

    • SDGs, Sustainable Development Goals: United Nations (2015), Transforming our world: the 2030 Agenda for Sustainable Development. Resolution adopted by the General Assembly on 25 September 2015, document A/RES/70/1.

    • Indicators: United Nations (2017), Work of the Statistical Commission pertaining to the 2030 Agenda for Sustainable Development. Resolution adopted by the General Assembly on 6 July 2017, document A/RES/71/313.

    • UN Sustainable Development: https://sdgs.un.org/ (consulted on 18/01/2023).

    • UN Sustainable Development Goal indicators website: https://unstats.un.org/sdgs/ (consulted on 18/01/2023).
  • Specific

More information is available in French and Dutch.