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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Toxicity to aquatic plants other than algae

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Administrative data

Link to relevant study record(s)

Description of key information

For the higher plants, the acute EC50 values for Lemna minor varied between 221.7 µg dissolved Pb/L (at pH 7.9) and 1674 µg dissolved Pb/L (at pH 7.2).


Six different chronic non-normalised no-effect levels for freshwater higher plants situated between 85 µg dissolved Pb/L (Lemna minor; endpoint: root growth rate) and 1025 µg dissolved Pb/L (Lemna minor; endpoint: root growth rate) were extracted.


One chronic no-effect level for marine higher plants of 11.9 µg dissolved Pb/L (Champia parvula; endpoint: reproduction) was found.

Key value for chemical safety assessment

Additional information