Registration Dossier
Registration Dossier
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EC number: 203-250-0 | CAS number: 104-90-5
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
An algae toxicity test was carried out according to EU Method C.3 and OECD Guideline 201 Algae Inhibition Test. Selenastrum capricornutum was exposed for 72 hours to static concentrations of 1, 3.2, 10, 32 and 100 mg/L test item. The obtained NOEC was 0.689 mg/L. The ErC50 and EbC50 were determined to be 61.2 mg/L (95 % confidence limits of 53.6 and 72.0 mg/L) and 30.6 mg/L (95 % confidence limits of 25.4 and 35.2 mg/L), respectively. At highest concentrations the test item was shown to be algistatic.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 61.2 mg/L
- EC10 or NOEC for freshwater algae:
- 0.689 mg/L
Additional information
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