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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Under the conditions of the test, the registered substance in the solvent is not harmful to Danio rerio at its limit of water solubility.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
141.4 mg/L

Additional information

An experimental study (Bayer, 1988) reported results of acute toxicity of the registered substance in the solvent to Danio rerio. The study was conducted according to the german guideline "UBA- Verfahrensvorschlag: Letale Wirkung beim Zebrabärbling (Brachydanio rerio), Stand Mai 1984 C1" which is comparable with the OECD guideline 203 (Bayer AG, 1988).

With increasing concentrations of Desmodur BL 3175 the test medium became more milky and cloudy. At all concentrations the test substance formed oily droplets on the surface of the test medium “water". These observations indicate that the tests were performed in concentration above the water solubility. Results are expressed in terms of nominal concentrations.