|Characterisation Method Name:|
|H2S impact on crop|
|Principal Method Name:|
|EPS: secondary sulphur dioxide pathway|
|Model for secondary sulphur dioxide pathway The characterisation factor is determined by an equivalency method using SO2 as a reference.|
It is assumed that almost all hydrogen sulphide is oxidised to SO2 in the atmosphere. Therefore 1 kg of H2S is equal to 1.49 kg SO2.
Calculation of characterisation factor
The characterisation factor for SO2 was estimated to -1.83×10 -2 kg crop lost per kg SO2. The characterisation factor for H2S is therefore 1.49*(-1.83E-02 ) = -2.73E-02 kg crop/kg H2S.
|Steen B (1999b): A systematic approach to environmental priority strategies in product development (EPS). Version 2000 – Models and data of the default method CPM report Chalmers University of Technology Sweden|
|The system is global and the time period is 1990.|
|Characterisation Parameter||Category Indicator||Impact Indication Principle||Aspect||Substance||Quantity||Unit||Notes|
|H2S||-2.73E-02||kg/kg||secondary sulphur dioxide pathway|