Registration Dossier
Registration Dossier
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EC number: 700-661-1 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Activated Sludge Respiration Inhibition Test (OECD Guideline 209). The 3h EC50 value was calculated to be 216 mg/L (187 – 252 mg/L, 95% confidence intervals) and the 3h NOEC was assessed to be 20 mg/L.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 216 mg/L
Additional information
The toxicity to microorganisms was tested on sewage micro-organisms by measuring the respiration rate under defined conditions in accordance to OECD Guideline 209. In this test activated sludge was exposed for 3 hours to nominal PSOA concentrations of 6, 20, 60, 200 and 600 mg/L.
The 3h EC50 value was calculated to be 216 mg/L (187 – 252 mg/L, 95% confidence intervals) and the 3h NOEC was assessed to be 20 mg/L. The results are based on nominal concentrations.
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