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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Lethal concentration 50%: >100 mg/L
Lethal concentration 0%: >100 mg/L

Key value for chemical safety assessment

Additional information

The acute toxicity of 1,4 -Butanediol to freshwater fish has been tested according to various guideline and non-guideline methods under GLP and non-GLP conditions. Test results of a study completed according to OECD Method 203 yield a 96 hr LC50 value of >100 mg/L and a 96 hr LC0 value of >100 mg/L (BASF AG 2005). Additional test results from reliable data sources include a 48 hour LC50 value of 427 mg/L (BASF 1977), and a 24h LC50 value of >5 mg/L (Hollis et al. 1954). These data indicate that 1,4 -Butenediol has a very low degree of toxicity to freshwater fish.