Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

No experimental data are available. According to REACH regulation, Annex IX, section 9.3.2., column 2, no study regarding bioaccumulation needs to be conducted if the substance has a low potential for bioaccumulation (for instance a logKow < 3). Trigger value for undertaking an experimental aquatic bioaccumulation test is a logPow value of 4.5 or higher. Due to the measured logPow of -0.71 for 2 -pyrrolidone accumulation in organisms is not expected. Hence, no further studies regarding bioaccumulation in organisms are performed and this endpoint can be waived.

Only a QSAR calculation is done for completeness (Chemservice, 2010), resulting in a BCF (aquatic) of 3.16 L/kg

This very low value indicates a lack of bioaccumulation potential in aquatic organisms.

The terrestrial bioaccumulation potential is no mandatory requirement under REACH for 2 -pyrrolidone.