Registration Dossier

Ecotoxicological information

Long-term toxicity to fish

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Description of key information

No long-term toxicity to fish studies are available for the test substance (‘benzene, ethylenated, by-products from’).

Key value for chemical safety assessment

Additional information

The supported uses for this substance (‘benzene, ethylenated, by-products from’) are limited to industrial closed systems and as such are not expected to lead to direct or indirect exposure to the environment. Therefore long-term fish toxicity testing for the substance is not required. However, under unlikely circumstances of accidental release (e.g., unplanned event of loss of containment), soil compartment would be the most likely receiving environmental media. Therefore, Fish, Early-Life Stage (FELS) toxicity test (test method: OECD 210) is justified to be waived. Regarding PBT assessment, based on acute toxicity to fish, daphnia, and long-term toxicity to algae, the substance meets the criterion for T. Additional study on long-term toxicity to fish is not necessary because this test is not going to provide additional useful information regarding its T classification.