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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

A 48h- EL50 value higher than 100 mg/L loading rate (WAF) was appraised for the test item Ethoxylated bisphenol dimethacrylate according to OECD testing guideline 202. 

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Additional information

To validate the use of the data generated for the Ethoxylated bisphenol A diacrylate (EC N. 613 -584 -2/CAS N. 64401 -02 -1) to fill by read-across the other ecotoxicological endpoints, the toxicity of the test item Ethoxylated bisphenol A dimethacrylate (EC N. 609 -946 -4/CAS N. 41637 -38 -1) was assessed on the most sensitive organism to ethoxylated bisphenol A diacrylate: aquatic invertebrate (Daphnia magna; 48h-EL50 = 6 mg/L).

The inhibition of mobility of the test item for a duration of 48 hours was measured according to the OECD testing guideline 202. Daphnia magna were exposed under semi-static conditions to a single nominal loading rate (WAF) of 100 mg/L. No effects being observed, the loading rate causing 50% effect (EL50) was higher than the highest loading rate tested (100 mg/L WAF solution). This result was supported by another analogue (2 moles Ethoxylated bisphenol A dimethacrylate) for which no effects were also observed at the highest loading rate tested (48h-EL50 > 100 mg/L).