Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Description of key information

The mean BCF earthworm derived from a reliable dataset of 101 BAF valuesfor lead was 0.10 kg dw/kg ww. (dimension NOT Liter/kg ww)

Key value for chemical safety assessment

BCF (terrestrial species):

Additional information


A range of values for uptake of chromium (VI) in earthworms is presented in the EU RAR and the mean of the middle of various ranges reported in literature was used to estimate the concentrations in worms. This mean BCF worm for chromium was calculated as 0.11 kg/kg ww.


A large amount of bioaccumulation data for terrestrial organisms is available as well for lead. The mean BCF earthworm derived from a reliable dataset of 101 BAF values was reported as 0.10 kg dw/kg ww.

However, it should be noted that the earthworm food chain was not addressed, neither in the EU RAR for chromium and nor in the vRAR for lead.