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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

The 48-hour EC50 of MODA for the immobilisation of Daphnia magna in non-adjusted media was 37.5 mg/L (95% confidence limits of 34.0 and 48.6 mg/L) and in pH-adjusted media it was 62.8 mg/L (95% confidence limits of 49.1 and 84.1 mg/L).

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
62.8 mg/L

Additional information

The ‘no-observed effect concentration’ of MODA with Daphnia magna was 21.1 and 21.0 mg/L respectively, in non-adjusted and pH-adjusted media. These results suggest that the pH of the test media, increased by the presence of the test substance, was partially responsible for the toxicity observed.

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