Registration Dossier
Registration Dossier
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EC number: 238-098-4 | CAS number: 14228-73-0
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Acute toxicity on aquatic algae and cyanobacteria (freshwater Green Alga)
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 36.6 mg/L
- EC10 or NOEC for freshwater algae:
- 25 mg/L
Additional information
To determine the acute toxicity of CHDM DGE to the freshwater green alga, Pseudokirchneriella subcapitata, two non-GLP screening assays were conducted. When possible, these data were used to determine EC50 and no-observable effect concentration (NOEC) values. Algae were exposed to solutions of 0, 1, 10, 25 and 50 mg/L of CHDM DGE. After 72 hours of exposure, algal cells counts were recorded and EC50 (the concentration at which a 50% inhibition occurs) no-observable effect concentrations (NOEC) for cell density were calculated. EC50 and NOEC values for CHDM DGE was 36.6 mg/L and 25 mg/L, respectively.
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