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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

48 hr test in Daphnia magna

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
14.961 mg/L

Additional information

The 48 hr EC50 in Daphnia magna was > 5.6 mg/L, the highest concentraiton tested. TBPA undergoes hydrolysis to TBPA-acid. ECOSAR estimates the 48 h EC50 of TBPA-acid in Daphnia to be 14.961 mg/L, which is consistent with the measured EC50 for TBPA of >5.6 mg/L. ECOSAR estimates the water solubility of TBPA-acid to be 0.104 mg/L, which is lower than the 48 h EC50. Based on this, neither TBPA nor its hydrolysis product TBPA-acid are expected to be acutely toxic to Daphnia.