Registration Dossier
Registration Dossier
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EC number: 277-225-8 | CAS number: 73018-51-6 The complex combination of hydrocarbons obtained by the acid isomerization of linalool. It consists primarily of monoterpenes, terpene alcohols and oxygenated cyclic compounds.
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.215 µg/L
- Assessment factor:
- 1 000
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.021 µg/L
- Assessment factor:
- 10 000
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 g/L
- Assessment factor:
- 10
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.062 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.006 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:
- 0.012 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential to cause toxic effects if accumulated (in higher organisms) via the food chain
Additional information
PNEC aquatic is based on the lowest predicted EC50 value for individual components present in the "unsaturated monoterpene hydrocarbon" group, which is a daphnia EC50 of 0.215 mg/L (see aquatic toxicity endpoint summary for details). The terrestrial and soil PNECs have been derived from PNECaquatic using the equilibrium partitioning method. PNEC STP is based on information content from a ready biodegradation test for the single substance, D-Limonene, which is representative of the "unsaturated monoterpene hydrocarbon" assessment entity. Absence of microbial toxicity can be inferred from biodegradation studies, e.g. if a compound degrades well in a ready biodegradability test this concentration can be used as a NOEC value. D-limonene was found to be readily biodegradable at a test concentration of 10mg/L.
Conclusion on classification
Not relevant for assessment entity. The conclusion for the classification of the whole substance is provided in the aquatic toxicity endpoint summary.
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