Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Adsorption / desorption

The adsorption coefficient (Koc) on soil and on sewage sludge using high performance liquid chromatography (HPLC) has been estimated andadsorption coefficients estimated to be log Koc,soil = 21.41 and log Koc, sewage sludge = 23.21. These values correspond to a Koc,soil = 2.582E21 and Koc,sewage sludge = 1.642E23. The McCall classification scheme classifies the substance as immobile in soil (Koc > 5000).

Henry's Law constant

The Henry's Law constant was estimated using the software HENRYWIN (v3.20). The value of 6.69 Pa m³/mol indicates that the substance is moderately volatile from surface water.

Distribution modelling

Distribution in environmental compartments was calculated using a Fugacity model according to Mackay, Level III. Distribution in various environmental compartments is estimated as: Air - 0.413%; Water - 3.5%; Soil - 27.2% and Sediment - 68.9%.

Sediment and soil are therefore considered to be the major target compartments.