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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

The study was aborted due to the low solubility and the fast degradation of the test item during the pre-exposure phase. Due to this rapid degradation in the test system and the proven ready biodegradation of isononyl benzoate, it is highly unlikely that the test item will bioaccumulate in the environment.

Key value for chemical safety assessment

Additional information

Isononyl benzoate was tested in a bioaccumulations study with fish (Cyprinus carpio) under flow-through conditions according to OECD 305. The study was aborted during the pre-exposure period, because the measured content of the test item in the test water was not stable and significantly lower than the nominal concentrations. Besides this, strong microbial growth (control: 15 cfu´s/mL; 10 µg/L nominal :1190 cfu´s/mL cfu = colony forming unit) could be observed in the test containers. These observations were clearly due to the ready biodegradability of the test item.

Therefore, it has to be concluded, that the test item was not suitable for the examination in the actual test system for technical reasons. In consequence, it seems highly unlikely that the test item isononyl benzoate will bioaccumulate to a high degree.