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general:trends:emission_trends_heavy_metals [2024/03/13 17:08] – [Main drivers] vosengeneral:trends:emission_trends_heavy_metals [2026/02/10 18:46] (current) – vosen
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 ===== Main drivers ===== ===== Main drivers =====
  
-Emission of priority heavy metals (cadmium, lead and mercury) **decreased significantly since 1990**. Values show reductions by about 58 to 89% compared to the base year, with most of the achievements originating from the early 1990's though.+Emission of priority heavy metals (cadmium, lead and mercury) **decreased significantly since 1990**. Most values show reductions by about 50 to 94% compared to the base year, with the majority of the achievements originating from the early 1990's though.
  
 __Overview of percental decreases in HM emissions since 1990:__ __Overview of percental decreases in HM emissions since 1990:__
-  * Arsenic: -93.5% +  * Arsenic: -94.3% 
-  * Cadmium: -64.5% +  * Cadmium: -69.9% 
-  * Copper: -7.1% +  * Copper: -2.1% 
-  * Chrome: -57.3% +  * Chrome: -56.9% 
-  * Mercury: -81.5% +  * Mercury: -85.4% 
-  * Nickel: -56.9% +  * Nickel: -61.4% 
-  * Lead: -91.9% +  * Lead: -90.9% 
-  * Selenium: -49.4% +  * Selenium: -53.6% 
-  * Zinc: -36.9%+  * Zinc: -36.2%
  
  
-2019 and 2020 emissions saw a substantial reduction trend for most heavy metals.+In 2024 the emissions from arsenic, cadmium, mercury and selenium declined between 2% (selenium) und 7% (cadmium). The emissions of copper, chrome, nickel, lead and zinc increased between 0,6% (copper) and 2,1% (zinc).
  
 The main source for most heavy metals is fuel combustion and production processes:  The main source for most heavy metals is fuel combustion and production processes: