Registration Dossier
Registration Dossier
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EC number: 432-840-2 | CAS number: 220926-97-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
No effects were observed on algae at the limit of water solubility and at the nominal concentration of 100 mg/L (WAF solution).
Key value for chemical safety assessment
Additional information
The acute toxicity (assessed by growth rate and biomass inhibition) of the test item to Pseudokirchneriella subcapitata (old name: Selenastrum capricornutum) for a duration of 72 hours was assessed according to the OECD testing guideline 201. Algae were exposed to a limit loading rate of 100 mg/L. The test item being insoluble, solution was prepared as WAF solution (24h-stirring).
No effect being observed at the loading rate of 100 mg/L, the 72h-EC50 for both growth rate and biomass were estimated to be higher than 100 mg/L (nominal concentration; WAF solution).
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