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Environmental fate & pathways

Bioaccumulation: terrestrial

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Description of key information

Waiver: based on log Kow<3

Key value for chemical safety assessment

Additional information

Reliable measured bioconcentration information in terrestrial organisms is not available for FX511, therefore a waiver is applied. 

In accordance with Column 2 of REACH annex IX, the bioaccumulation test on terrestrial organisms need not be conducted if the substance has a low potential for bioaccumulation (for instance a log Kow <3) and/or a low potential to cross biological membranes or if direct and indirect exposure of the aquatic compartment is unlikely. The partition coefficient of FX511 was determined in a reliable study (Walker 2012) where the measured Kow is 2.98. Therefore, FX511 is considered to have low potential for bioaccumulation. No further testing is required.