Registration Dossier
Registration Dossier
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EC number: 939-396-3 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Reliable acute studies based on international guidelines or on calculation methods are available for the three aquatic trophic levels (fish, algae and aquatic invertebrates) and for activated sludge.
Among the data available, a toxic effect was observed for these three aquatic trophic levels. The most sensitive species appears to be fish Danio rerio with a 96 h-LL50 for dihydroterpineol multiconstituent of 52 mg/L, based on a calculation method.
Moreover, the 48 h-EC50 for dihydroterpineol multiconstituent to Daphnia magna is 86.5 mg/L based on a reliable experimental study and the 72-hour EC50 of dihydroterpineol multiconstituent to P. subcapitata for the parameter growth rate was 63 mg/L based on a calculation method.
The test on acute toxicity to Daphnia was carried out with water accomodated fractions (WAF) of test material with analytical checks of constituents in test solutions. The results were expressed on a nominal basis since the analytical verification reveal the stability of the constituents during the study. Therefore, the results from the experimental study as well the results from the reliable predictions are used in a similar manner as EC(L)50 concentration for the purposes of hazard assessment and risk assessment.
Finally, it has been determined that the test substance is not harmful to activated sludge based on a valid experimental study.
Additional information
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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