Registration Dossier
Registration Dossier
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EC number: 284-660-7 | CAS number: 84961-70-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.001 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.001 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
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:
- 16.5 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 1.65 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:
- 3.7 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Short-term aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae). The short-term fish studies show LC/EC50 values greater than the Water Accommodated Fraction (WAF) or the highest nominal concentrations. Therefore, the substance does not need to be classified for acute aquatic hazard in accordance with CLP Regulation No. 1272/2008.
Long-term toxicity data are available for three trophic levels (fish, invertebrates and algae). For the long-term data, the NOEC values were greater than the Water Accommodated Fraction (WAF) or the highest nominal concentrations. For aquatic invertebrates, an additional 21-day chronic study with Daphnia exposed to LAB, the most water soluble component of HAB, still resulted in an EC50 of 0.012 mg/L and a NOEC of 0.0075 mg/L. While this latter value exceeds the criteria, it was accomplished only by testing the most water soluble component of HAB and then further artificially enhancing solubility through use of acetone as a solvent. It was therefore only used for the derivation of the PNECs and not for the environmental classification. Therefore, the substance does not need to be classified for chronic aquatic hazard in accordance with CLP Regulation No. 1272/2008.
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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