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2.B.7 - Soda Ash Production

Short description

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

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T = key source by Trend L = key source by Level

D Default
RA Reference Approach
T1 Tier 1 / Simple Methodology *
T2 Tier 2*
T3 Tier 3 / Detailed Methodology *
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.


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


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

For pollutant-specific information on recalculated emission estimates for Base Year and 2018, please see the pollutant specific recalculation tables following chapter 8.1 - Recalculations.

Planned improvements

At the moment, no category-specific improvements are planned.