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EC number: 240-210-1 | CAS number: 16066-35-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.073 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.73 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.007 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 58 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.058 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.006 mg/kg sediment dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.016 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
PNEC sediment using Equilibrium Partitioning Method:
The following formula is applied:
PNECsed= Ksusp-water/RHOsusp*PNECwater*1000
Where:
PNECwater |
Predicted No Effect Concentration in water |
[mg.l-1] |
0.07 |
RHOsusp |
bulk density of wet suspended matter |
[kg.m-3] |
1150 |
Ksusp water |
partition coefficient suspended matter water |
[m3.m-3] |
0,9474 |
PNECsed |
Predicted No Effect Concentration in sediment |
[mg.kg-1of wet sediment] |
|
Ksusp water= Fwatersusp+ Fsolidsusp*Kpsusp/1000*RHOsolid
Fwatercomp |
fraction water in compartmentcomp |
[m3.m-3] |
0,9 |
Fsolidcomp |
fraction solids in compartmentcomp |
[m3.m-3] |
0,1 |
RHOsolid |
density of the solid phase |
[kg.m-3] |
2500 |
Kpcomp |
solids-water part. coeff. in compartmentcomp |
[l.kg-1] |
0,1896 |
Kpsusp= Focsusp*Koc
Koc |
partition coefficient organic carbon-water |
[l.kg-1] |
1,896 calculated with EPIWIN 4.00 |
|
Foccomp |
weight fraction of organic carbon in compartmentcomp |
[kg.kg-1] |
0,1 |
|
Kpsusp |
partition coefficient solid-water in suspended matter |
[l.kg-1] |
|
|
Therefore PNEC sediments = 0,9474*0,07*1000/1150 = 0.0577 mg/kg
The value of Ksusp-water of 0,9474 is consistent with the calculated value with EUSES 2.1.1. The tool gives 0,913 putting a Koc QSAR for organic acids and 0,979 for non hydrophobic substances
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 = 0.0577*0.1 = 0.00577 mg/kg
PNEC soil using Equilibrium Partitioning Method:
Results with EUSES 2.1.1 for Ksoil-water: 0.228 – 0.307
The following formula is applied:
PNECsoil= Ksoil-water/RHOsoil*PNECwater*1000
Where:
PNECwater |
Predicted No Effect Concentration in water |
[mg.l-1] |
0.07 |
RHOsoil |
bulk density of wet suspended matter |
[kg.m-3] |
1150 |
Ksoil water |
partition coefficient soil water |
[m3.m-3] |
0,269 |
PNECsoil |
Predicted No Effect Concentration in soil |
[mg.kg-1] |
|
Ksoil water= Fairsoil*Kair-waterl+Fwatersoil+ Fsolidsoil*Kpsoil/1000*RHOsolid
Fwatersoil |
fraction water in compartmentsoil |
[m3.m-3] |
0.2 |
Fsolidsoil |
fraction solids in compartmentsoil |
[m3.m-3] |
0.6 |
Fairsoil |
fraction air in compartment comp (only relevant for soil) |
[m3.m-3] |
0.2 |
RHOsolid |
density of the solid phase |
[kg.m-3] |
2,500 |
Kpsoil |
solids-water part. coeff. in compartmentsoil |
[l.kg-1] |
0,038 |
Kair-water |
air-water partitioning coefficient |
[-] |
0,0629 |
Kpsoil= Focsoil*Koc
Koc |
partition coefficient organic carbon-water |
[l.kg-1] |
1,896 calculated with EPIWIN 4.00 |
|
Focsoil |
weight fraction of organic carbon in compartmentsoil |
[kg.kg-1] |
0,02 |
|
Kpsoil |
partition coefficient solid-water |
[l.kg-1] |
0.038 |
|
Kair-water= 149(Henry constant at environmental temperature)/285(T°K)/8.314(R, gas constant) =0,0629
Therefore PNEC soil = 0,269/1150*0,07= 0,016 mg/kg
Conclusion on classification
None of the studies shows a value leading to classification for the environement both according to 67/548 and to CLP regulation.
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