Registration Dossier

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Description of key information

Any tendency to bioaccumulation in aquatic species is expected to be mitigated by lack of exposure.  Additional testing on vertebrate animals is not needed to refine the risk assessment.

Key value for chemical safety assessment

Additional information

An experimental log Kow of 4.19 indicates that C4 acrylate is not bioaccumulative according to screening criteria for PBT analysis. C4 acrylate is a monomer used on-site with technical controls against release to the environment. Any tendency to bioaccumulation in aquatic species is expected to be mitigated by lack of exposure. Additional testing on vertebrate animals is not needed to refine the risk assessment. We have proposed adaptation (by omission) of the data requirement for bioconcentration in aquatic organisms based on column two of Annex IX (testing need not be conducted if direct and indirect exposure of the aquatic compartment is unlikely).