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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The 48-hour EC50 of 89 mg/L for Daphnia magna was determined from a valid acute exposure study with Unoxol 3,4 Dialdehyde.

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
89 mg/L

Additional information

Daphnia magna were exposed to Unoxol 3,4 -Dialdehyde in a semi-static system with test solution renewals every 24 hours. Mean measured concentrations were similar to nominal concentrations of 0, 10, 18, 32, 56, and 100 mg/L. Temperature, pH, and dissolved oxygen levels were within required specifications for the test organism. Under the conditions of the study, Unoxol 3,4 Dialdehyde induced no visible effects in Daphnia magna at 56 mg/L (NOEC). The 48-hour LC50 was 89 mg/L based on measured concentrations (95% confidence interval between 81 and 100 mg/L).