Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

There is a wealth of data on the bioaccumulation of Se through the aquatic food chain. A generic bioaccumulation factor of 4721 L/kg dw, corresponding to 944 L/kg ww, was calculated as the 90th percentile of species mean bioconcentration and bioaccumulation data for 8 fish species and 4 groups of aquatic invertebrates (crustaceans, insects, molluscs and annelids).

No reliable data are available for bioaccumulation of Se in terrestrial organisms.