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Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

For 3,5-dichlorophenyl isocyanate no short-term tests on toxicity to aquatic plants are available. Therefore, short-term toxicity tests of the main hydrolysis product 3,5-dichloroaniline are used to draw a conclusion on toxicity to aquatic plants for the parent compound. As the only available toxicity test to algae is not reliable, the short-term toxicity test with the lowest value of the isomer 3,4 -dichloroaniline is used. Concerning the acute toxicity of 3,4-dichloroaniline to aquatic plants (Scenedesmus pannonicus), a study was performed according to a national standard method: determination of the toxic effect on the growth of algae. After 96 h exposure, a EC50 of 4.8 mg/l and a NOEC of 1.0 mg/l was obtained (Adema 1982)

Key value for chemical safety assessment

Additional information