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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Key value for chemical safety assessment

BCF (aquatic species):
60 L/kg ww

Additional information

The bioaccumulation factor of the test substance, C8-18 and C18-unsatd. MIPA, was estimated using both the regression-based and the Arnot-Gobas BCF-BAF sub models of the BCFBAF v.3.02 program (EPI Suite v4.11). Using the regression-based equation for non-ionic compounds, the predicted BCF values for the constituents were estimated to be in the range of 3.16 to 447.6 L/kg ww. Similarly, using the Arnot-Gobas BAF-BCF sub-model, which applies mitigating factors (e.g. growth dilution and metabolic biotransformations), the predicted upper trophic BCF value for the constituents was predicted to range from 1.054 to 244.4 L/kg ww (US EPA, 2019). As all constituents were within the descriptor domain criteria, the predictions are considered to be accurate with low uncertainty. Further, given that the constituents are structurally very similar and vary only in the carbon chain length, a weighted average value, which considers the percentage of the constituent in the substance, has been considered to dampen the errors in predictions (if any). Therefore, the weighted average BCF value was calculated as 127.40 L/kg w/w (log BCF= 2.11) and 60.31 L/kg w/w (log BCF= 1.78), using the regression-based and Arnot-Gobas-based methods, respectively. All the constituents were within the specified descriptor and structural domain criteria. Therefore, the BCF prediction for the test substance using BCFBAF model of EPI Suite TM can be considered to be reliable with high to moderate confidence. Overall considering either the individual BCF predictions for the constituents or the weighted average values, the test substance is expected to have a low bioaccumulation potential.