Registration Dossier
Registration Dossier
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EC number: 922-963-4 | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Based on growth rate, the EC50 value was determined to be 8.52 mg/L, the EC10 value was found to be 3.17 mg/L (determined from measured concentrations).
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 8.52 mg/L
- EC10 or NOEC for freshwater algae:
- 3.17 mg/L
Additional information
The toxicity of the test item to the green algae Pseudokirchneriella subcapitata was determined according to OECD 201 and EU Method C.3. The 72-hours study was conducted under static conditions in a closed bottles without headspace. Nominal test concentrations were: 2.048, 5.12, 12.8, 32.0 and 80.0 mg/L and the corresponding geometric mean measured concentrations were: 1.64, 4.01, 10.5, 25.3 and 67.8 mg/L. Based on growth rate, the EC50 value was determined to be 8.52 mg/L, the EC10 value was found to be 3.17 mg/L (determined from measured concentrations).
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