Registration Dossier
Registration Dossier
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EC number: 221-242-5 | CAS number: 3039-83-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no hazard identified
Marine water
- Hazard assessment conclusion:
- no hazard identified
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 2 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.118 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.012 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.096 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
As no hazard to freshwater species was identified, application of the equilibrium assessment method does fail. However, to assess sediment and soil exposure, the lowest EC50 (daphnia >100 mg/l) was used as a basis for an interim freshwater PNEC used as input for the equilibrium method to assess sediment and soil PNECs as follows:
Thus, it can be shown that risks to sediment and soil are negligible.
PNEC sediment
Ksusp-water: 0.295 (according to EUSES)
RHOsusp: 1150 kg/m3(according to the CSA Guidance document equation R10-2)
PNECsediment-freshwater= (Ksusp-water/RHOsusp) * PNECfreshwater*1000
PNECsediment-freshwater= (0.295/1150) * 0.1 mg/L * 1000
PNECsediment-freshwater= 0.0257 mg/kg wwt
PNECsediment-freshwater= 0.118 mg/kg dwt (factor 4.6)
PNECsediment-marine water= (Ksusp-water/RHOsusp) * PNECmarine-water*1000
PNECsediment-marine water= (0.295/1150) * 0.01 mg/L * 1000
PNECsediment-marine water= 0.00257 mg/kg wwt.
PNECsediment-marine water= 0.0118 mg/kg dwt (factor 4.6)
PNEC soil
Ksoil-water: 0.979 (according to EUSES v. 2.1.2)
RHOsoil: 1150 kg/m3 (according to the CSA Guidance document, chapter R.10, May 2008, equation R10-2)
PNECsoil= (Ksoil-water/RHOsoil) * PNECfreshwater*1000
PNECsoil= (0.979/1150) * 0.1 mg/L * 1000
PNECsoil= 0.085 mg/kg wwt
PNECsoil= 0.096 mg/kg soil dwt (factor 1.13)
Conclusion on classification
Based on the results obtained, sodium ethylene sulphonate was not classified and labelled for environmental hazards according to Directive 67/548/EEC (DSD) and Regulation (EC) No 1272/2008 (CLP).
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