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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The 72 hour EC50 (biomass) of Ligustral/Cyclal C/Trigustral to Scenedesmus subspicstus based on nominal concentrations was 28 mg/l with 95 % fiducial limits of 19 and 42 mg/l.
The 72 hour EC50 (growth rate) of Ligustral/Cyclal C/Trigustral to Scsnedesmus subspicatus based on nominal concentrations was 31 mg/l with 95 % fiducial limits of 23 and 43 mg /l.
The 72 hour NOEC based on nominal concentrations was 10 mg/l.

Key value for chemical safety assessment

EC50 for freshwater algae:
31 mg/L
EC10 or NOEC for freshwater algae:
10 mg/L

Additional information