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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Description of key information

The BCF of a commercial naphthenic acids sample was measured in rainbow trout by Young et al. (2008). The BCF of 2 L/kg wet-wt based, was measured for one C-13 component of the naphthenic acids. The Japanese METI-NITI database reports a measured range of BCF values between 1.6 and 27 (wet-wt based) for sodium naphthenate, with one, two and three cycles. The available data suggest low or no bioaccumulation potential. A range of 3.162 to 56.23 L/kg wet-wt for the BCF was obtained using the EPISuite modelling tool.

Key value for chemical safety assessment

Additional information