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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

The available data on biodegradation is sufficient for the risk assessment (risk characterisation ratios are below 1). Therefore further testing on aquatic and sediment degradation is not required.

Key value for chemical safety assessment

Additional information

In accordance with column 2 of Annex IX, sections 9.2.1.2 and 9.2.1.4, of Regulation (EC) No 1907/2006, further aquatic and sediment degradation testing is needed if the chemical safety assessment indicates the need to investigate further the degradation of the substance and its degradation product.

The substance has a low log Koc and is not considered to be bioaccumulative due to the low logKow. The risk for the compartment surface water and sediment based on available data is acceptable (risk ratio below 1) and direct or indirect exposure of the sediment compartment is unlikely. Thus, the available data on degradation is sufficient and no additional testing is required.