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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

Daphnia Magna was exposed under static conditions for 48 h to six concentrations (0.63, 1.25, 2.5, 5, 10, and 20 mg/L). An EC50-value of 4.5 mg/L was observed.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
4.5 mg/L

Additional information

The toxicity towards aquatic invertebrates was performed in a study, conducted in accordance with EEC Methods for Determination of Ecotoxicity Annex to Directive 92/69/EEC, Part C which is in most parts equivalent to the OECD Guideline No. 202.

Daphnia magna was exposed to the test solutions of 6 nominal concentrations of the test substance and blank control solution for a period of 48 h under static conditions. Mobility and visible abnormalities were recorded at 24 and 48 h. The measured concentrations used to determine the EC-values confirmed that deviation from the nominal concentrations was less than 20 %. An EC50-value of 4.5 mg/L was obtained. The toxicity study is classified as acceptable and satisfies the guideline requirements for the acute Daphnia study.