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Ecotoxicological information

Long-term toxicity to fish

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Description of key information

The 40 day NOEC for chronic toxicity to fish is 1.4mg/L.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1.4 mg/L

Additional information

Moles et al (1981) report a 40 day NOEC of 1.4mg/l for reduced growth in fry of the freshwater Coho Salmon. This result was from a study using a flow through system with daily analytical confirmation of the exposure concentrations. Although this study did not follow a standard guideline it was the most conservative reliable endpoint identified and was also selected as the key study in the EU RAR for toluene (2003). This value is supported by a 32 day NOEC of 4mg/l for reduced weight in a Fathead Minnow embryo-larval test (Devlin et al, 1982).