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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

A 72-h EC50 value of >3.6 mg/L (measured concentration) and NOEC of ≥3.6 mg/L (measured concentration) have been determined for the effects of the test substance on growth rate of Pseudokirchneriella subcapitata based on geometric mean measured exposure concentrations of the test substance. The test substance is known to hydrolyse rapidly in water and 3.6 mg/L was the concentration measured in the highest nominal test concentration of 120 mg/L. It is therefore likely that the test organisms were predominantly exposed to the hydrolysis products of the substance.

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Additional information

A 72-h EC50 value of >3.6 mg/L (measured concentration) and NOEC of ≥3.6 mg/L (measured concentration) have been determined for the effects of the test substance on growth rate of Pseudokirchneriella subcapitata based on geometric mean measured exposure concentrations of the test substance. The test substance is known to hydrolyse rapidly in water and 3.6 mg/L was the concentration measured in the highest nominal test concentration of 120 mg/L. It is therefore likely that the test organisms were predominantly exposed to the hydrolysis products of the substance.