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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

LC50 (96h) = 108 mg/L for Danio rerio
Nevertheless this endpoint is not used for PNEC-calculation as PNEC-values are calculated on the basis of a HC5-approach.

Key value for chemical safety assessment

Additional information

As there are no data available for alcohol ethoxylate ((Z)-9-Octadecen-1-ol ethoxylated , < 2.5 EO, CAS 9004-98-2) the acute toxicity to fish is assessed on the basis of data from a study with a similar alcohol ethoxylate (C16-18 and C18-unsaturated mixture, CAS 68920-66-1). In the non-GLP study zebrafish (Danio rerio) were exposed to different concentrations of the mixture for 96 hours.The study was conducted according to a method that conforms to the OECD-guideline 203. After 96 h an LC50 -value of 108 mg test substance/L could be determined (BASF, 2008).