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general:trends:emission_trends_heavy_metals [2021/04/21 11:05] – [Trends] gniffkegeneral:trends:emission_trends_heavy_metals [2022/02/07 08:35] (current) – [Trends] gniffke
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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. Most of the achievements originate from the early 1990's though. Recent years saw hardly any improvements in heavy metal emissions.+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. Most of the achievements originate from the early 1990's though. 2019 and 2020 emissions saw a substantial reduction trend for mostmost heavy metals.
  
 The main sources for most heavy metals is fuel combustion: Energy Industries (NFR 1.A.1) and Industrial Processes (NFR 2) like Metal Industries (NFR 2.C) emit the majority of arsenic, cadmium, chrome, lead, mercury and Nickel. But copper and zinc emissions are mostly governed by the Transport (NFR 1.A.3) sector, resulting mostly from brake and tyre wear. Thus, trends are connected directly with the annual mileage. Selenium on the other hand originates mainly from Mineral Industry (NFR 2.A) and to a lesser degree from Transport (NFR 1.A.3). Other sources are still to be investigated but generally expected to add little to the total trend. The main sources for most heavy metals is fuel combustion: Energy Industries (NFR 1.A.1) and Industrial Processes (NFR 2) like Metal Industries (NFR 2.C) emit the majority of arsenic, cadmium, chrome, lead, mercury and Nickel. But copper and zinc emissions are mostly governed by the Transport (NFR 1.A.3) sector, resulting mostly from brake and tyre wear. Thus, trends are connected directly with the annual mileage. Selenium on the other hand originates mainly from Mineral Industry (NFR 2.A) and to a lesser degree from Transport (NFR 1.A.3). Other sources are still to be investigated but generally expected to add little to the total trend.
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 ===== Trends ===== ===== Trends =====
 The figure below shows emission trends for heavy metals: The figure below shows emission trends for heavy metals:
-[{{:general:trends:iir_hm_all.png?nolink&600|Heavy metal emission trends }}]+[{{:general:trends:iir_hm_all.png?direct&600|Heavy metal emission trends }}]