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sector:ippu:chemical_industry:soda_ash_production:start [2021/01/26 14:35] – kotzullasector:ippu:chemical_industry:soda_ash_production:start [2023/04/11 15:22] (current) – [Method] kludt
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 ===== Short description ===== ===== Short description =====
  
-^  Method  ^  AD  ^  EF  ^  Key Category       ^ +^ Category Code  ^  Method                                                                           ||||^  AD                                        ||||^  EF                              ||||| 
-|  T1      |  NS  |  C   |  //no key source//  |+| 2.B.7          |  T1                                                                               |||||  NS/ PS                                        |||||  C                               ||||| 
 +^                ^  NO<sub>x</sub>  ^  NMVOC  ^  SO<sub>2</sub>  ^  NH<sub>3</sub>  ^  PM<sub>2.5</sub>  ^  PM<sub>10</sub>  ^  TSP  ^  BC  ^  CO  ^  Pb  ^  Cd  ^  Hg  ^  Diox  ^  PAH  ^  HCB  ^ 
 +| Key Category:  |  -               |  -      |  -               |  -/-             |  -                 |  -                |  -/-  |  -   |  -   |  -   |  -   |  -   |  -     |  -    |  -    | 
 +<hidden onHidden="Click to view Legend" onVisible="Click to hide Legend"> 
 +**T** = key source by Trend 
 +**L** = key source by Level 
 +^ Methods                                                                                                                                     || 
 +^  D                                                                                                        | Default                          | 
 +^  RA                                                                                                       | Reference Approach               | 
 +^  T1                                                                                                       | Tier 1 / Simple Methodology *    | 
 +^  T2                                                                                                       | Tier 2*                          | 
 +^  T3                                                                                                       | Tier 3 / Detailed Methodology *  | 
 +^  C                                                                                                        | CORINAIR                         | 
 +^  CS                                                                                                       | Country Specific                 | 
 +^  M                                                                                                        | Model                            | 
 +| * as described in the EMEP/CORINAIR Emission Inventory Guidebook - 2007, in the group specific chapters.                                    ||
  
-In Germany, soda ash is produced in three production facilities, all of which use the Solvay process. +^ AD - Data Source for Activity Data                                         ^^ 
 +^  NS                                 | National Statistics                   | 
 +^  RS                                 | Regional Statistics                   | 
 +^  IS                                 | International Statistics              | 
 +^  PS                                 | Plant Specific data                   | 
 +^  AS                                 | Associations, business organisations  | 
 +^  Q                                  | specific questionnaires, surveys      |
  
-In former years, facilities with higher ammonia emissions existed in the New German Länder. However, after 1992, emissions of NH,,3,, occur at a lower level.+^ EF - Emission Factors                             ^^ 
 +^  D                     | Default (EMEP Guidebook)  | 
 +^  C                     | Confidential              | 
 +^  CS                    | Country Specific          | 
 +^  PS                    | Plant Specific data       | 
 +</hidden> 
 +\\ 
 +In Germany, soda ash is produced in three production facilities, all of which use the Solvay process. The production data is thus confidential.
  
-===== Methodology ===== 
  
-++ Activity data+===== Method =====
  
-The Federal Statistical Office determines the total amounts of soda ash produced in Germany, but only regarding confidentiality.+=== Activity data ===
  
-++ Emission factor+The total amounts of soda ash produced in Germany are determined with the help of two data suppliers. 
 +The Federal Statistical Office has long time series for this area. Due to the presence of a nearly inexplicable trend in the data of the Federal Statistical Office for the period since 2015, the relevant producers were contacted, and in 2021 cooperation agreements were signed with both producers (for all three production sites). The German Environment Agency (UBA), which consolidates the relevant data, has decided that as of 2013 the pertinent time series is to be filled with the producers’ data (this overlaps with a comparison carried out for the period 2013 through 2021). 
 +Since Germany has only two producers, the production-quantity data from the two sources must be kept confidential.
  
-Emission factors (for TSP and NH,,3,,) are confidential regarding activity data restrictions.+=== Emission factor ===
  
-+ __Discussion of emission trends__+Emission factors (for TSP and NH<sub>3</sub>) are confidential due to restrictions on activity data.
  
-> The steep reduction especially for NH,,3,, at the beginning of the 1990s was due to closures in the eastern German industrial sector. For year 1990 for eastern Germany is in  case of TSP pointed out the summary figure for the Chemical Industry as a whole.+=== Discussion of emission trends ===
  
-[[gallery size="medium" viewer="yes"]] +The steep reduction—especially for NH<sub>3</sub>—at the beginning of the 1990s was due to closures in the eastern German industrial sector. For the year 1990 in the case of TSP for eastern Germany, a summary figure  is reported for the Chemical Industry as a whole. However, after 1992, emissions of NH<sub>3</sub> occur at a lower level.
-:  EM_2B7_since_1990.PNG +
-[[/gallery]]+
  
-+ __Recalculations__+All trends in emissions correspond to trends of emission factors. No rising trends are to identify. 
 +[{{:sector:ippu:chemical_industry:em_2b7_since_1990.png|**Emission trends in NFR 2.B.7**}}]
  
-With EF and AD remaining unrevised, recalculations were not necessary. 
  
-> For more information on **recalculated emission estimates for Base Year and the last recent year**, please see the pollutant-specific recalculation tables following chapter [[[recalculations | 8.1 - Recalculations]]].+==== Recalculations ====
  
-+ __Planned improvements__+Recalculations were required for the time of changes in the activity data since 2013, but not for EF aspects. 
 +[{{:sector:ippu:chemical_industry:Rekalkulation_2b7_since_1990.png|**Recalculations in NFR 2.B.7**}}]
  
-At the moment, no category-specific improvements are planned.+<WRAP center round info 60%> 
 +For **pollutant-specific information on recalculated emission estimates for Base Year and 2020**, please see the pollutant specific recalculation tables following [[general:recalculations:start|chapter 8.1 - Recalculations]]. 
 +</WRAP>
  
-[!--**FAQ** +=== Planned improvements === 
-No comments!--]+ 
 +No further improvements are planned at the moment.