Registration Dossier
Registration Dossier
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EC number: 255-527-0 | CAS number: 41741-86-0
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
There is a high probability that the product is not acutely harmful to aquatic plants.
Key value for chemical safety assessment
Additional information
In a 7 day growth inhibition study study,Lemna gibbawere exposed to the test item at loading rates of 0 (control), 0.032, 0.1, 0.32, 1.0 and 3.2 mg/L under static conditions in accordance with the OECD 221 guideline. The water pH and temperature were within acceptable guideline specifications. Plant growth (as frond number) and phytotoxic effects were observed on day 2, 5 and test termination.The ErL 10 based on growth rate and frond number was determined at 1.11 mg/L and 0.43 mg/L based on dry weight. The ErL50 values were > 3.2 mg/L loading rate.The results in this study are consistent with all validity criteria and the test is valid according to the guidelines of this study. No deviations from test guidelines or other incidents occurred during the course of the reported test which may have influenced the results.
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