Registration Dossier
Registration Dossier
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EC number: 232-164-6 | CAS number: 7789-41-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.117 mg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.208 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.058 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 77.7 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.433 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.215 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.2 mg/kg soil dw
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
All PNECs are expressed for Br. CaBr2 dissociates in Ca and Br very quickly once in contact with water. The Ca ion is not toxic compared to the toxicity of the Br ion. Therefore NaBr studies have been used for read across because just like for CaBr2, the Na ion is not toxic compared to the toxicity of the Br ion.
The PNECs have all been derived based on the assessment factor approach except for the sediment which was derived based on the partitioning coefficient. The most sensitive reliable endpoint has been determined and an assessment factor based on the REACH guidance has been applied.
- For the aquatic environment the most sensitive endpoint was a NOECreproduction of 7.5 mg NaBr/l for Daphnia magna (Guilhermino et al. 1999).
- For the terristrial compartiment the most sensitive endpoint was a NOECweight of 10 mg Br/kg dw for Eisenia fetida (Goodband, 2008).
Conclusion on classification
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.
