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Toxicity to terrestrial arthropods

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toxicity to terrestrial arthropods: long-term
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other justification
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In accordance with Annex IX column 2, testing does not need to be conducted as the hazard is adequately assessed by equilibrium partitioning.  Substance is a hydrocarbon UVCB: The hydrocarbon block method is used for environmental risk assessment (see REACH guidance, R7, app.13-1). PNECs for hydrocarbon blocks have been derived using aquatic PNECs and the equilibrium partitioning method (EqP) using representative structures. Justification for this approach is provided in Redman et al., 2014. Extension and validation of the target lipid model for deriving predicted no-effect concentrations for soils and sediments. ET&C, Vol. 33, No. 12, pp. 2679–2687. See Product Library tab in “assessment report. PetroRisk information excel” spreadsheet attached to Section 13 for PNEC values.  The aquatic PNECs have been derived using the HC5 statistical extrapolation method and the target lipid model using representative structures. Given the large database of organisms included in the target lipid model, an assessment factor of one has been applied to the HC5.

Key value for chemical safety assessment

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