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EC number: 221-486-2 | CAS number: 3115-49-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The test susbatnce is acutely harmful to aquatic algae.
Key value for chemical safety assessment
Additional information
In a 72 hour acute toxicity study, the cultures of Pseudokirchneriella subcapitata were exposed to the test item at nominal concentrations of 10.0, 13.2, 17.1, 22.3 and 29.0 mg/L under static conditions in accordance with the OECD guideline 201 (2006)
(Institute of Industrial organic Chemistry Branch Pszczyna, 2012). The stability and concentrations were verified by chemical analysis (97.31 – 99.53 % of nominal at 0 h; 95.52 – 100.07 % of
nominal at 72 h). Based on the nominal concentrations of the test item, the inhibition of algae growth rate resulted in a ErC50 (72 h) of 27.21 mg/L, whereas the inhibition of algae yield resulted in a EyC50 (72 h) of 18.37 mg/L.
Therefore, the test substance is acutely harmful to aquatic algae.
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