Emissions of nitrogen oxides (NOx) in the European Union (EU-27) totaled almost **** million metric tons in 2023. Since 1990, NOx emissions in the EU-27 have fallen by ** percent. Transportation produces the highest volume of NOx emissions in the EU.
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EEA. (June 27, 2025). Total emissions of selected air pollutants in the European Union (EU-27) from 1990 to 2023 (in 1,000 metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/1171157/air-pollutant-emission-european-union-eu-28/
EEA. "Total emissions of selected air pollutants in the European Union (EU-27) from 1990 to 2023 (in 1,000 metric tons)." Chart. June 27, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/1171157/air-pollutant-emission-european-union-eu-28/
EEA. (2025). Total emissions of selected air pollutants in the European Union (EU-27) from 1990 to 2023 (in 1,000 metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/1171157/air-pollutant-emission-european-union-eu-28/
EEA. "Total Emissions of Selected Air Pollutants in The European Union (Eu-27) from 1990 to 2023 (in 1,000 Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 27 Jun 2025, /statistics/1171157/air-pollutant-emission-european-union-eu-28/
EEA, Total emissions of selected air pollutants in the European Union (EU-27) from 1990 to 2023 (in 1,000 metric tons) ÌÇÐÄÆƽâ°æ, /statistics/1171157/air-pollutant-emission-european-union-eu-28/ (last visited July 31, 2026)
Total emissions of selected air pollutants in the European Union (EU-27) from 1990 to 2023 (in 1,000 metric tons) [Graph], EEA, June 27, 2025. [Online]. Available: /statistics/1171157/air-pollutant-emission-european-union-eu-28/
