Registration Dossier
Registration Dossier
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EC number: 268-610-1 | CAS number: 68131-13-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 1 000
- PNEC freshwater (intermittent releases):
- 0.003 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 mg/L
- Assessment factor:
- 100
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.82 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.082 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.67 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 1.167 mg/kg food
- Assessment factor:
- 300
Additional information
All the reported PNECs were calculated from the application of assessment factors as detailed from the Guidance on information requirements and chemical safety assessment-Chapter R.10 Characterisation of dose (concentration)-response for environment. PNEC values were calculated on the basis of the observation and effects seen in the three eco-toxicology studies where the substance concentration values not analytically determined due to the lack of a suitable analytical method to be applied in such studies. The lowest L(E)C50 value is used in the calculation of PNECs; in this case therefore the EC/NOEC value of 0.25 mg/L from the algal study is taken as staring point.
As already discussed chemicals of concern regarding the secondary poisoning include lipophilic organic chemical and some metal compounds. Secondary poisoning is concerned with toxic effect in the higher members of the food chain (living in aquatic or terrestrial compartments) which result from ingestion of organisms from lower trophic levels that contain accumulated substances. The substance is not expected to enter the environment during its use and therefore no secondary poisoning is going to occur. The calculated PNEC oral for secondary poisoning is considered high enough and not leading to any risk.Conclusion on classification
The substance is classified harmful to the environment as for CLP regulation
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.
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