Registration Dossier
Registration Dossier
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EC number: 701-246-8 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 2 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 2.4 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.2 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 000 µg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.26 mg/kg sediment dw
- Extrapolation method:
- sensitivity distribution
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.126 mg/kg sediment dw
- Extrapolation method:
- sensitivity distribution
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 1 mg/kg soil dw
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 111.11 mg/kg food
- Assessment factor:
- 90
Additional information
The cited PNECfreshwater value (and others derived from it) are calculated according to ECHA guidance, but tests of acute toxicity to fish and Daphnia where pinene oligomers were applied by spray application to the water surface have indicated lower toxicity than the results used for PNEC calculation. Also it is believed that the observed ecotoxicity of pinene oligomers is partly or mainly due to physical (surface binding) activity rather than chemical action: physical entrapment of Daphnia and the probability of fish skin and gill coating due to the strong surface-binding properties of pinene oligomers support this hypothesis. It is therefore likely that the AFs applied for PNEC calculation (designed to address chemical toxicity) are inappropriately large.
Conclusion on classification
Acute EC50 and long-term NOEC values for Daphnia and algae are <1 mg/l and pinene oligmers are not readily biodegradable. Hence R50/53 and Acute 1, Chronic 1 categories apply for toxicity to aquatic organisms under DSD and CLP criteria respectively.
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