Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 203-180-0
CAS number: 104-15-4
PNEC sediment using Equilibrium Partitioning Method:
The following formula is applied:
Predicted No Effect Concentration in water
bulk density of wet suspended matter
partition coefficient suspended matter water
Predicted No Effect Concentration in sediment
[mg.kg-1of wet sediment]
Ksusp water= Fwatersusp+ Fsolidsusp*Kpsusp/1000*RHOsolid
fraction water in compartmentcomp
fraction solids in compartmentcomp
density of the solid phase
solids-water part. coeff. in compartmentcomp
partition coefficient organic carbon-water
weight fraction of organic carbon in compartmentcomp
partition coefficient solid-water in suspended matter
Therefore PNEC sediments = 1.2*0,07*1000/1150*4.6 = 0.35 mg/kg
The value of Ksusp-water of 1.2 is consistent with the calculated value with EUSES 2.1.1. The tool gives 1.2 putting a Koc 12.18
PNEC marine sediment using Equilibrium Partitioning Method:
Being marine PNEC usually derived by freshwater PNEC with an adding assessment factor of 10, consequently the marine sediment PNEC can be directly derived from PNEC sediment with an assessment factor of 10.
Therefore PNEC marine sediments = 0.35*0.1 = 0.035 mg/kg
PNEC soil using Equilibrium Partitioning Method:
Results with EUSES 2.1.1 for Ksoil-water: 0.565
solids-water part. coeff. in compartmentsoil
Therefore PNEC soil = 0,565/2500*0,07= 0.0275 mg/kg dw
The available studies on ASA and related salt do not show any concern about eco-toxicology, ASA substances do not required hazard classification for the environment.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
På den här webbplatsen används kakor. Syftet är att optimera din upplevelse av den.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again