Emissions of the main air pollutants in Spain have experienced substantial reductions when compared to 1990 levels. The pollutant which presented the largest drop within the indicated period were sulfur oxides (SOx), having decreased by more than ** percent since 1990.
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EEA. (July 4, 2023). Percent change in emissions of main air pollutants in Spain in 2021, relative to 1990 levels [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 03, 2026, from /statistics/1322304/percent-change-in-emissions-of-main-air-pollutants-spain/
EEA. "Percent change in emissions of main air pollutants in Spain in 2021, relative to 1990 levels." Chart. July 4, 2023. ÌÇÐÄÆƽâ°æ. Accessed August 03, 2026. /statistics/1322304/percent-change-in-emissions-of-main-air-pollutants-spain/
EEA. (2023). Percent change in emissions of main air pollutants in Spain in 2021, relative to 1990 levels. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 03, 2026. /statistics/1322304/percent-change-in-emissions-of-main-air-pollutants-spain/
EEA. "Percent Change in Emissions of Main Air Pollutants in Spain in 2021, Relative to 1990 Levels." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 4 Jul 2023, /statistics/1322304/percent-change-in-emissions-of-main-air-pollutants-spain/
EEA, Percent change in emissions of main air pollutants in Spain in 2021, relative to 1990 levels ÌÇÐÄÆƽâ°æ, /statistics/1322304/percent-change-in-emissions-of-main-air-pollutants-spain/ (last visited August 03, 2026)
Percent change in emissions of main air pollutants in Spain in 2021, relative to 1990 levels [Graph], EEA, July 4, 2023. [Online]. Available: /statistics/1322304/percent-change-in-emissions-of-main-air-pollutants-spain/
