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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

ErC50 (7d, Lemna minor) > 100 mg/l

Key value for chemical safety assessment

EC50 for freshwater plants:
100 mg/L

Additional information

The following data was obtained for the Similar Substance 01. It is expected that the Target substance will present similar effect levels to daphnia. Justification for Read Across is given in Section 13 of IUCLID.

The acute toxicity of the test item to aquatic plants was investigated in a 7–day static test to Lemna minor, according to the OECD Guideline 221 (2006). The study was performed using six concentrations ranging from 0 to 100 mg/l. The frond number and the dry mass of each replicate were determined. Subsequently, Growth rate µ and the yield were determined from these parameters. As the measured concentrations lay between 85 % and 113 % of the nominal concentrations, the determination of the results was based on the nominal concentrations. All the validity criteria were met.

The ErC50 (7d) based on both frond number and dry mass was found to be > 100 mg/l.