====== Explanation of Key Trends - Total Suspended Particulate Matter ====== ===== Main drivers ===== Between 1990 and 2024, **total TSP emissions dropped by 84.7%**, mainly due to stricter regulations of the Old West Germany that applied to the New German Länder after the German Reunification and realized a change-over from solid to gaseous and liquid fuel, as well as advancements in filter technologies of combustion plants and industrial processes. The Main Drivers for TSP emissions are **Fuel Combustion (NFR 1.A)** with 62% of total 1990 emissions and a 94% reduction between 1990 and 2024 and, as a sum, the **Industrial Processes (NFR 2)** with 27% of the total 1990 emissions and a 69% reduction between 1990 ans 2024. __Table: TSP emissions 1990-2024, in kilotonnes [kt]__ ^ ||||||||||||||^ Trend: latest compared to || ^ 1990 ^ 1995 ^ 2000 ^ 2005 ^ 2010 ^ 2015 ^ 2016 ^ 2017 ^ 2018 ^ 2019 ^ 2020 ^ 2021 ^ 2022 ^ 2023 ^ 2024 ^ 1990 ^ previous year ^ | 2 015 | 542 | 497 | 412 | 382 | 375 | 348 | 361 | 376 | 350 | 331 | 330 | 333 | 335 | 308 | -84.7% | -8.1% | {{ :general:trends:iir_tsp_trend_from_1990.png?direct&800 | trend of TSP emissions, by sector}} {{ :general:trends:iir_tsp_trend_from_2005.png?direct&800 | trend of TSP emissions, by sector, from 2005}}]