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Long-term toxicity to fish

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The chemical safety assessment according to Annex I does not indicate the need to investigate further the effects (long-term toxicity or bioconcentration) on aquatic organisms. Due to high lipophilicity of the substance, 98 % of it will end up in sediment if it is continuously released in water at a constant rate. After a single spill, more than 99.9 % of the substance will be found in sediment at the equilibrium. Furthermore, NExBTL renewable diesel, which is a UVCB substance of similar composition to the substance, was found readily biodegradable in a test carried out according OECD Guideline 301B (Ready biodegradability; CO2 Evolution Test). Therefore, water phase may serve as a significant exposure route only in acute exposures. In chronic exposures, the concentrations of the substance in water phase will be very low. Thus, chronic toxicity tests with fish are not relevant. Since numerous studies have shown that elimination of alkanes by aquatic species is fast, bioaccumulation of the test material by fish via food chain is not likely.

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