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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

(72 h) ErC50: ≥100 mg/l, nominal, Scenedesmus subspicatus, reliability 1
(72 h) NOEC: ≥100 mg/l, nominal, Scenedesmus subspicatus, reliability 1

Key value for chemical safety assessment

Additional information

A 72-hour EC50 value of >53 mg/l and a NOEC of ≥53 mg/l have been determined for the effects of the test substance on growth rate and biomass of Scenedesmus subspicatus based on geometric mean measured exposure concentrations. The corresponding nominal exposure concentration was 100 mg/l. The results are assessed on the basis of nominal concentrations because it is not possible to establish the identity of the substance(s) that the analysis relates to (see section 7.1.1).