Registration Dossier
Registration Dossier
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EC number: 471-920-1 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
A study was performed to assess the effect of the test material on the respiration of activated sewage sludge. The method followed that described in the OECD 209. Following a preliminary range-finding test, activated sewage sludge was exposed to an aqueous dispersion of the test material at a concentration of 1000 mg/L for a period of 3 -h at 21°C with the addition of a synthetic sewage as a respiratory substrate.
The effet of the test material on the respiration of activated sewage sludge gave a 3h-EC50 > 1000 mg/L. The 3h-NOEC was 1000 mg/L.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 1 000 mg/L
- EC10 or NOEC for microorganisms:
- 1 000 mg/L
Additional information
A study was performed to assess the effect of the test material on the respiration of activated sewage sludge. The method followed that described in the OECD 209. Following a preliminary range-finding test, activated sewage sludge was exposed to an aqueous dispersion of the test material at a concentration of 1000 mg/L for a period of 3 -h at 21°C with the addition of a synthetic sewage as a respiratory substrate.
The effet of the test material on the respiration of activated sewage sludge gave a 3h-EC50 > 1000 mg/L. The 3h-NOEC was 1000 mg/L.
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