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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

72-hour study on Scenedesmus subspicatus: EC50 = 0.21 mg/l

EC10 < 0.1 mg/l

Key value for chemical safety assessment

EC50 for freshwater algae:
0.21 mg/L

Additional information

As no data on target substance was available, toxicity to aquatic algae was assessed based on data on Similar Substance 01, i.e. a different salification used as read across. Details on the read across are reported in section 13.

Such data was taken as a supporting evidence in the overall assessment, as this is not the most appropriate test system, due to the coloured nature of test substance (dye), that may interfere with the interpretation of test results.

Therefore, a test on lemna (OECD 221) was also run.