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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

The growth inhibition on aquatic plants according to REACH Annex VII (9.1.2, column 2) was investigated by testing the effect on the growth of Lemna gibba following OECD 221. This study covers both IUCLID5 endpoints, section 6.1.5 and 6.1.6. A further test on the growth inhibition of algae according to OECD guideline 201 is thus not required. For the groth inhibion test on Lemna gibba, the EC50 based on growth rate of dry weight were determined to be 10.7 mg/L (nominal concentration). 

Key value for chemical safety assessment

Additional information

The growth inhibition on aquatic plants according to REACH Annex VII (9.1.2, column 2) was investigated by testing the effect on the growth of Lemna gibba following OECD 221. This study covers both IUCLID5 endpoints, section 6.1.5 and 6.1.6. A further test on the growth inhibition of algae according to OECD guideline 201 is thus not required. For the groth inhibion test on Lemna gibba, the EC50 based on growth rate of dry weight were determined to be 10.7 mg/L (nominal concentration).