Registration Dossier
Registration Dossier
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EC number: 202-680-6 | CAS number: 98-55-5
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 68 µg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 6.8 µg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 2.6 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 1.85 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.185 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:
- 0.329 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
Conclusion on classification
For alpha-Terpineol the ecotoxicity data of Terpineol multi (a multi-constituent substance with alpha-Terpineol as its main constituent and gamma-Terpineol as the minor constituent) are used directly for classification. The other constituents of Terpineol multi are very similar in chemical structure, have similar physico-chemical properties and all belong to the neutral organics. Therefore they are expected to show similar ecotoxicity. The lowest observed acute toxicity value is a 72h ErC50 value of algae: 68 mg/L. In a chronic study in freshwater algae, a NOErC of 3.9 mg/L was observed. Alpha-Terpineol is readily biodegradable and has a log Kow of 2.6. Based on all these data, alpha-Terpineol does not need be classified according to the CLP Regulations (EC) No 1272/2008 or according to the Dangerous Substance Directive 67/548/EC (DSD).
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