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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

Daphnia magna, 48hr values: EC0>500mg/l, LC50>10000mg/l
Daphnia magna 48hr QSAR prediction for EC50=47g/l

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
10 000 mg/L

Additional information

Two measured values are available for the acute toxicity in daphnia magna. One study established that the EC0 was in excess of the maximum tested dose of 500mg/l whilst a second study established that the LC50 was in excess of the maximum tested dose of 10000mg/l. A QSAR predicts that the EC50 is much higher at around 47000mg/l. On this basis, it seems reasonable to conclude that the acute toxicity EC50 is likely to be in excess of 10000mg/l and that selecting this value is a conservative choice for the key parameter. There is no data availalble on marine invertebrates.