Registration Dossier
Registration Dossier
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EC number: 941-381-1 | CAS number: -
Long-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
Read across has been applied for this endpoint. Water accommodated fractions of light alkylate naphtha produced a 21 -day NOELR (No Observed Effect Loading Rate) value of 2.6 mg/L based on reproduction with Daphnia magna. These data are used as read-across to long-term toxicity to fish in the naphtha category.
Supporting PETROTOX (version 4.01) modelled values are available. PETROTOX predicted a chronic 28 -d EL10 of the substance for Oncorhynchus mykiss to be 1.10 mg/L.
Key value for chemical safety assessment
Additional information
Read across has been applied for this endpoint. Water accommodated fractions of light alkylate naphtha produced a 21 -day NOELR (No Observed Effect Loading Rate) value of 2.6 mg/L based on reproduction with Daphnia magna. These data are used as read-across to long-term toxicity to fish in the naphtha category.
Supporting PETROTOX (version 4.01) modelled values are available. PETROTOX predicted a chronic 28 -d EL10 of the substance for Oncorhynchus mykiss to be 1.10 mg/L.
The aquatic toxicity was estimated using the PETROTOX computer model, which combines a partitioning model (used to calculate the aqueous concentration of hydrocarbon components as a function of substance loading) with the Target Lipid Model (used to calculate acute and chronic toxicity of non-polar narcotic chemicals). PETROTOX computes toxicity based on the summation of the aqueous-phase concentrations of hydrocarbon block(s) that represent a petroleum substance and membrane-water partition coefficients (KMW) that describe the partitioning of the hydrocarbons between the water and organism.
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