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With a measured mean Kd of 43664 L/kg C36 -alkylenediamines has a strong sorption to soil.The PNEC soil is calculated using the equilibrium paritioning method as no short or long-term terrestrial test data is available for C36 -alkylenediamines.

In the absence of measured data the PNECsoilwas calculated using the equilibrium partitioning method (EPM). According to the TGD this method uses the PNECaquaticand the soil/water partitioning coefficient as inputs.

The PNECsoil is then calculated using the equations detailed in the TGD:

PNECsoil= Ksoil-water* PNECaquatic dissolved* 1000 * 1 / RHOsoil


PNECaquatic dissolved = 0.234 µg/L

Ksoil-water=  65496 m3. m-3

RHOsoil = 1700 kg. m-3(TGD, equ. 18)

PNECsoil-EPM =9.0 mg/kg ww = 10.18 mg/kg dw

PNECsoil-EPM= 0.90 mg/kg ww including the correction for exposure via ingestion= 1.02 mg/kg dw