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Sediment toxicity

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Description of key information

No data on sediment toxicity are available. However, the substance is not persistent in the sediment compartment. The equilibrium partitioning method has been used for assessing the hazard to sediment organisms.

Key value for chemical safety assessment

Additional information

In Annex X of the Regulation (EC) No 1907/2006 REACH concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), it is suggested, that "long-term toxicity testing shall be proposed by the registrant if the results of the chemical safety assessment indicates the need to investigate further the effects of the substance and/or relevant degradation products on sediment organisms. The choice of the appropriate test(s) depends on the results of the chemical safety assessment."


Cyclohexanone has a low potential for adsorption or bioaccumulation, exhibits a very high solubility in water, is slightly volatile and readily biodegradable. In addition, results from the aquatic studies indicate no harmful effects. Therefore exposure of sediment organisms is unlikely and testing towards sediment dwelling organisms not necessary. Furthermore, the equilibrium partitioning method can be used for assessing the hazard of sediment organisms.