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Long-term toxicity to aquatic invertebrates

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Description of key information

A range of short-term toxicity tests are available for the members of the Hydrotrope Category and these report that the substances do not pose a risk to the aquatic environment. In Annex IX of Regulation (EC) No 1907/2006, it is laid down that chronic toxicity tests shall be proposed by the registrant if the chemical safety assessment indicates the need to investigate further.

One chronic test on invertebrates is available (Huels, 1987), but is considered of poor reliability (Klimisch 4). The study indicates a long term chronic toxicity of sodium cumene sulfonate to Daphnia magna of a NOEC of <30, 30 or >30 mg/L and an LC50 of 154 mg/L. U se of these data, would not change the outcome of the environmental risk assessment and are provided for completeness only. As acute toxicity was not observed at the concentrations tested in the acute studies and the hydrotrope category of substances are readily biodegradable, no additional chronic testing on aquatic invertebrates is required and this endpoint is waived.

Key value for chemical safety assessment

Additional information

Long term toxicity to aquatic invertebrates has been waived.

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