Registration Dossier
Registration Dossier
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EC number: 941-876-2 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 1.42 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.6 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.142 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.16 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.275 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.028 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:
- 0.054 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The environmental classification of the test substance is currently not harmonized according to the CLP Regulation (EC) 1272/2008 and the Dangerous Substance Directive 67/548/EC.
Based on available acute toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is 0.16 mg/L (ErC50 value for algae).
A biodegradation study was performed equivalent to the OECD 302B guideline under GLP conditions (Huntsman, 2011). Less than 10% biodegradation was observed with the test substance after 28 days (DOC removal). The results support the conclusion that the biodegradation of the substance is low. Therefore the substance is considered not inherently biodegradable; its logKow is < 4.
Based on available data the substance should be classified for Acute toxicity. From the acute data, algae appear to be the most sensitive species. The NOEC and ErC10 for algae is < 1 mg/L (NOErC = 0.032 mg/L and the ErC10 = 0.071 mg/L), therefore the substance should be classified for chronic toxicity based on the acute toxicity values, following Annex I section 4.1. of the CLP Regulation.
The substance should be classified for Acute (H400) and Chronic toxicity (H410) for the aquatic environment according to Annex 1 (section 4.1.) of the 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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