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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

For 3,4-dichlorophenyl isocyanate no short-term tests on toxicity to invertebrates are available. Therefore, the short-term toxicity test of the main hydrolysis product 3,4-dichloroaniline with the lowest value is used to draw a conclusion on toxicity to invertebrates for the parent compound.  The acute toxicity of 3,4-dichloroaniline was assessed following a national standard method for the determination of toxicity to invertebrates. For Daphnia magna, a LC50 of 0.23 mg/l (larvae, 1 mm) after 48 h of exposure was obtained (Adema 1981).

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
0.23 mg/L

Additional information