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Ecotoxicological information

Toxicity to terrestrial arthropods

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Description of key information

The Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics estimated 28-day LC50 value is 2800 mg/kg soil dw based on mortality and the EC10 value is 536 mg/kg soil dw based on reproduction for the terrestrial arthropod species Folsomia candida.

The Petrorisk model was used for the risk assessment.

Key value for chemical safety assessment

Additional information

According to the information available, Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics is readily biodegradable, and therefore testing of soil-dwelling arthropods is not required.

The registered substance is a complex hydrocarbon UVCB whose constituents have variable physicochemical properties. Therefore, a modelling framework is needed to account for the bioavailability of the constituents in the mixture, which was then used to predict the toxicity of the substance as a whole. The target lipid model (TLM) and HC5, have been applied to soils and sediment using equilibrium partitioning (EqP) model. As such, modeled data are considered fit for purpose.