Registration Dossier

Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

No sediment toxicity data are currently available for the registered substance.

Long-term sediment toxicity studies are not required for Annex IX substances under the REACH Regulation. However, due to the high sediment adsorption potential of the substance and the potential for persistence in the sediment, the potential significance of this compartment has been assessed. It is concluded that further consideration is not required because:

- The physicochemical properties and high value of Koc means that if the substance were to enter a wastewater treatment plant in influent waste waters, it would partition mainly to sludge (a small proportion may be volatilised), with a negligible amount passing to water. The result is that exposure of freshwater or marine sediment compartments is negligible.

- The substance is not manufactured or used as such in the EU and is registered in accordance with the REACH Regulation (Article 6) in order to support import of polymers. Residual unbound monomer in polymer is very low and the substance is of extremely low water solubility, such that unintentional release to the aquatic environment from end use of the polymers is negligible.