Registration Dossier

Ecotoxicological information

Sediment toxicity

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Administrative data

Link to relevant study record(s)

Description of key information

Risk assessment is based on EPM

Key value for chemical safety assessment

Additional information

In Annex IX of Regulation (EC) No 1907/2006, it is laid down that long-term toxicity testing shall be proposed by the registrant if the chemical safety assessment indicates the need to investigate further the effects on sediment organisms. According to Annex I of this regulation, the chemical safety assessment triggers further action when the substance or the preparation meets the criteria for classification as dangerous according to Directive 67/548/EEC or Directive 1999/45/EC or is assessed to be a PBT or vPvB. The hazard assessment of cyclohexyl methacrylate reveals that it is no PBT or vPvB substance. Furthermore, due to the physico-chemical properties of the substance and its ready biodegradability, a considerable exposure of the sediment compartment is unlikely. Therefore, a long-term toxicity study in sediment organisms is not provided. The PNEC sediment can be estimated based on the equilibrium partitioning method.