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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

EC50 (48 h) < 1 mg/l in daphnia magna

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
3.68 µg/L

Additional information

The assessment on short-term toxicity to aquatic invertebrates relied on a weight of evidence approach, using available data on similar substances. Details on the read across approach are attached in section 13.

Studies were conducted based on DIN 38412, part 11. No details on the compositions of tested batches were available.

In the available study on similar substance 01, 20 daphnia per concentration divided in 4 replicates were exposed to test substance under static exposure conditions. Nominal tested concentrations were 0.0975, 0.195, 0.39, 0.78, 1.56, 3.12,6.24, 12.5, 25 µg/l.

Another study performed on similar substance 03 contains only few details in the report but the vailable information indicated that 2 replicates per concentration were used and nominal tested concentrations were 2, 4, 8, 10, 20, 40, 80, 100 µg/l and some effects were seen.

In both studies the effect levels, including up to 100 % immobilisation, were found to be well below 1 mg/l.