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Ecotoxicological information

Long-term toxicity to fish

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Description of key information

There are no results on chronic toxicity to fish available. Therefore the risk assessment will be based on the chronic test with Daphnia.

Key value for chemical safety assessment

Additional information

The results from short-term toxicity tests on fish and aquatic invertebrates demonstrate that invertebrates are the most sensitive trophic level tested (Ceriodaphnia, acute: EC50 of 30 mg/L; fish, acute: 460 mg/L). Considering the results from a chronic 21d study on Daphnia magna resulting in an EC10 of 1.05 mg/L and the higher sensitivity of daphnids to the test substance in the acute test it is not to be expected, that a chronic test on fish will reveal a greater hazard than already determined by the available data. In addition, the chronic NOEC for fish was estimated according to the ACR approach (ECETOC No. 91, 2003) based on the available acute toxicity data for fish. The resulting long-term NOEC would be greater than 1 mg/L.

Therefore, and for reasons of animal welfare, no long-term toxicity studies on fish are provided.