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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 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."

Formaldehyde has a low potential for adsorption or bioaccumulation, exhibits a very high solubility in water, low volatilization potential and is readily biodegradable. Distribution modelling clearly shows that water will be the main target for environmental distribution. 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.