Registration Dossier
Registration Dossier
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EC number: 943-290-2 | CAS number: -
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
ErC50 > 100; < 1000 mg/l
NOErC = ca. 10 mg/l
Key value for chemical safety assessment
- EC50 for freshwater plants:
- 100 mg/L
- EC10 or NOEC for freshwater plants:
- 10 mg/L
Additional information
The toxicity to aquatic plants of the substance has been evaluated in read across approach where the test has been conducted on similar substance 01 according to the OECD 221 and to the EU Method C.26 on Lemna Minor plants over a period of 7 days. The test was performed at nominal concentrations of 11.4, 114 and 1140 mg/l of the item, corresponding to 10, 100 and 1000 mg/l of the active ingredient.
Under the test conditions the median effect concentrations of the substance to Lemna minor with respect to growth rate (ErC50) for the endpoint frond numbers and dry weight were estimated to be 100–1000 mg/l nominal (NOErC = ca. 10 mg/l).
Moreover the median effect concentrations of the substance to Lemna minor with respect to yield (EyC50) for the endpoint frond numbers and dry weight were estimated to be about 100 mg/l nominal concentration (NOEyC < 10 mg/l).
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