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2.B.7 - Soda Ash Production

Short description

Category Code Method AD EF
2.B.7 T1 NS C
NOx NMVOC SO2 NH3 PM2.5 PM10 TSP BC CO Pb Cd Hg Diox PAH HCB
Key Category: - - - -/- - - -/- - - - - - - - -

Click to view Legend

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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.
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
EF - Emission Factors
D Default (EMEP Guidebook)
C Confidential
CS Country Specific
PS Plant Specific data


In Germany, soda ash is produced in three production facilities, all of which use the Solvay process. The production data is thus confidential.

Method

Activity data

The Federal Statistical Office determines the total amounts of soda ash produced in Germany, but only in a way that respects confidentiality.

Emission factor

Emission factors (for TSP and NH3) are confidential due to restrictions on activity data.

The steep reduction—especially for NH3—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 NH3 occur at a lower level.

All trends in emissions correspond to trends of emission factors. No rising trends are to identify.

Emission trends in NFR 2.B.7

Recalculations

With EF and AD remaining unrevised, recalculations were not necessary.

For pollutant-specific information on recalculated emission estimates for Base Year and 2019, please see the pollutant specific recalculation tables following chapter 8.1 - Recalculations.

Planned improvements

AD improvements are planned by using production figures of both german producers.