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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The acute toxicity of the test substance 3-methylbutan-1-ol to Salmo gairdneri (new name: Oncorhynchus mykiss) was assessed according to OECD 203 under static conditions (Hoechst AG, 1979). The 96 hour LC50 was determined to be nominal 700 mg/L. In addition study data of other category members are available all revealing LC50 values well above 100 mg/L.

Key value for chemical safety assessment

LC50 for freshwater fish:
700 mg/L

Additional information

The acute toxicity of the test substance 3-methylbutan-1-ol to Salmo gairdneri (new name: Oncorhynchus mykiss) was assessed according to OECD 203 under static conditions (Hoechst AG, 1979). The 96 hour LC50 was determined to be nominal 700 mg/L.

Supplementary a publication is available describing the acute toxicity of the read across substance pentan-1-ol to Zebrafish (Danio rerio) according to OECD Draft 1980 and ISO TC 147/SCS/WG3 under Non-GLP conditions over 96 hours of exposure and under static conditions (Wellens, 1982). The 96 hour LC50 was determined to be 530 mg/L based on the nominal concentration.

In addition, the acute toxicity of the category member 2-methylbutan-1-ol to Zebrafish (Danio rerio) was assessed according to OECD 203 under GLP conditions in a semi-static system (BASF 2011). The 96 hour LC50 was determined to be nominal greater than 120 mg/L.

In conclusion, the 96h-LC50 value of the test substance and of the read across category members was determined to be greater than 100 mg/L.