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Short-term toxicity to aquatic invertebrates

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Description of key information

No mortality/immobilisation of adult daphnia within the first 48 h up to the highest concentration tested (30.8 mg/L) in 21d daphnia reproduction study. In a weight of evidence approach 
    
    
    
    
    
    
    
    

EC50 48 h daphnia magna of 1,4-Butanediol dimethacrylate predicted by QSAR from category trend analysis of 10 methacrylates is 28.4 mg/l.

EC50 48 h daphnia magna of 1,4-Butanediol dimethacrylate predicted by QSAR from category trend analysis of 10 methacrylates is 28.4 mg/l.

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
28.4 mg/L

Additional information

No dedicated study on short-term toxicity of 1,4-BDDMA is available. In accordance with REACH regulation Annex VII, 9.1.1., column 1, long-term toxicity data are provided instead.

Up to the highest concentration tested (30.8 mg/L) there was no mortality of the adult daphnia within the first 48 h of the daphnia reproduction study according to OECD 211 (Noack, 2012). In conclusion, the 48h EC50 for mortality was greater than 30.8 mg/L.

EC50 48 h daphnia magna of 1,4-Butanediol dimethacrylate predicted by QSAR from category trend analysis of 10 methacrylates is 28.4 mg/l. This value corresponds with the observation the the chronic test OECD 211) with 1,4 -BDDMA.