Registration Dossier
Registration Dossier
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EC number: 927-033-1 | CAS number: 1174918-88-7
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Marine water
- Hazard assessment conclusion:
- no data available: testing technically not feasible
STP
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Sediment (freshwater)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Sediment (marine water)
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no data available: testing technically not feasible
Additional information
The ecotoxicity of hydrocarbons, C7-C8, cyclics has been examined in a series of studies on fish, Daphnia and algae, and additional QSAR modelling has been performed. The most conservative results of aquatic studies are LL50 or EL50 values of 3.6 mg/L (fish), 3 mg/L (Daphnia), and 10 mg/L (algae). All studies were conducted using Water Accomodated Fractions (WAFs) studies because of the limited water solubility. QSAR modelling data on microorganisms resulted in an EL50 of 14.69 mg/L. A study on the chronic toxicity to Daphnia resulted in a NOELR of 1 mg/L. Further QSAR modelling was performed to address chronic toxicity of hydrocarbons, C7-C8, cyclics to fish and a NOELR was found to be 0.839 mg/L. Standard tests for terrestrial endpoints are intended for single substances and are not appropriate for the risk assessment of this complex substance. For the purpose of risk assessment, soil PNECs for hydrocarbon blocks have been derived using aquatic PNECs and the equilibrium partitioning method (EqP) using representative structures. Studies on long-term or reproductive toxicity to birds do not need to be conducted due to the existence of a large mammalian dataset demonstrating low toxicity to higher organisms.
Conclusion on classification
According to the available data, the substance is considered "Aquatic chronic category 2" according to CLP criteria.
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