Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The substance had a negative impact on the growth rate and biomass yield of green algae after exposure for 72 hours.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 35 mg/L
- EC10 or NOEC for freshwater algae:
- 13 mg/L
Additional information
The acute aquatic toxicity of the test item FAT 40849/A TE was tested in a valid GLP study according to EU Method C.3 by exposing the freshwater green algae Pseudokirchneriella subcapitata for 72 hours in a static toxicity test. A series of nominal concentrations of 2.2, 4.6, 10, 22, 46 and 100 mg/L was tested. The nominal concentrations were confirmed by analysis by HPLC and measured concentrations were 8.7, 11, 46 and 102 mg/L (the lowest two test concentrations were not analysed). A negative impact on the growth rate of green algae was seen and the corresponding EC50 value was >100 mg/L and the EC10 value was 25 mg/L. The negative impact on biomass yield was stronger and the corresponding EC50 value was 35 mg/L and the EC10 value was 13 mg/L.
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