Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Bioaccumulation: aquatic/sediment

According to the adaptations found in column 2 of annex IX, the bioconcentration in aquatic species study can be waived if direct and indirect exposure to the aquatic environment is unlikely. This substance has no defined uses where direct application to the aquatic environment would occur, and because the substance is readily biodegradable, wastewater treatment would also make indirect exposure to the aquatic environment unlikely. In addition, evidence of a low bioaccumulation potential is provided by QSAR estimates showing BCF values < 100 L/kg using a regression method based upon the experimental log Kow value of 3.2(HLS 1999, VCL 261/972408), and using the Arnot-Gobas QSAR method the BCF/BAF values for all trophic levels are < 10 L/kg when biotransformation rates are utilized and ~ 200 L/kg when biotransformation is not included in the estimation. For these reasons, and for animal welfare reasons, it is believed that a bioconcentration study is not justified and is not proposed.

 

Bioaccumulation: terrestrial

No data available. No data required.