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EC number: 629-732-4
CAS number: 1224966-13-5
In the absence of measured data the PNECsed was calculated using the equilibrium partitioning method (EPM).
In the absence of measured
data the PNECsed was calculated using the equilibrium
partitioning method (EPM). According to the TGD this method uses the PNECaquaticand
the sediment/water partitioning coefficient as inputs. However, since
the available PNECaquaticis based on the bulk concentration
present in surface water a re-calculation is necessary first:
dissolved = PNECaquatic
bulk/ (1 + Kpsusp* SUSPwater* 10-6)
bulk = 30.72
= 94000 L.kg-1
= 15 mg.L-1(TGD)
then calculated using the equations detailed in the TGD:
PNECsed = Ksusp-water*
PNECaquatic dissolved* 1000 * 1 / RHOsusp
dissolved = 12.75
Ksusp-water = 23500.9
RHOsusp = 1150
kg.m-3(TGD, equ. 18)
260.5 mg/kg ww
1198.3 mg/kg dw
the additional safety factor for exposure via ingestion: 10
26.1 mg/kg ww
= 119.8 mg/kg dw
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