Registration Dossier
Registration Dossier
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EC number: 406-370-3 | CAS number: 58890-25-8 MDI/CHA
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
In a 72 h toxicity study conducted according to OECD guideline 201, freshwater algae (Pseudokirchneriella subcapitata) were exposed to MDI/CHA. The concentration of test substance in all samples was below the LOQ (i.e. <0,1 mg/L). The 72 h EC10 and EC50 for growth rate reduction were above the solubility limit of MDI/CHA in test medium (<0.1 mg/L). The study is considered to be reliable without restrictions.
Key value for chemical safety assessment
Additional information
In a 72 h toxicity study conducted according to OECD guideline 201, freshwater algae (Pseudokirchneriella subcapitata) were exposed to MDI/CHA at the following nominal concentration: 0 (blank-control) and 100 mg/L loading rate. The concentration of test substance in all samples was below the LOQ (i.e. <0,1 mg/L). Based on the LOQ of the analytical method, the solubility limit of MDI/CHA was <0.1 mg/L in test medium. The 72 h EC10 and EC50 for growth rate reduction were above the solubility limit of MDI/CHA in test medium (<0.1 mg/L). The study is considered to be reliable without restrictions.
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