Registration Dossier
Registration Dossier
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EC number: 279-213-8 | CAS number: 79665-26-2
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 other than algae.
Key value for chemical safety assessment
Additional information
The toxicity to aquatic plants other than algae was assessed in a toxicity study according to OECD guideline 221 under consideration of GLP. The test was perforemd with water accommodated fractions at nominal concentrations of 120, 60, 30, 15, 7.5 mg/L and the control. The test item concentrations were determined with a validated spectrophotometric method. At test initiation the determined test item concentrations were in the range of 91.9 – 114.2% of the nominal concentrations. At test termination in the range of 98.3 – 117.1%. Therefore, the endpoint values are based on the nominal tes item concentrations. After an exposure time of 7d the EC50, EC10 and NOEC based on growth rate (frond number) were determined to be >120, 18.64 and 15 mg/L. The EC50, EC10 and NOEC based on growth rate (dry weight) were determined to be 115.18, 12.64 and 7.5 mg/L.
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