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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The most sensitive acute toxicity of thymol to fish was obtained in a multispecies test and the 96 h LC50 of thymol to (Pimephales promelas) was 3.2 mg/l (Ewell, 1986).

Key value for chemical safety assessment

Additional information

The results have been confirmed also in single-species test.