Registration Dossier
Registration Dossier
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EC number: 203-445-0 | CAS number: 106-94-5
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- EC50 for microorganisms:
- 279 mg/L
- EC10 or NOEC for microorganisms:
- 100 mg/L
Additional information
The test item showed under the conditions of the study that it will have an inhibitory effect on sewage sludge respiration if released to a waste water treatment plant.
The effect of the test item on the respiration of activated sewage sludge gave a 5 minute EC50 of 270 mg/l. The no observed effect concentration (NOEC) after 5 minutes exposure was 100 mg/l.However, due to the volatility of the substance under the test conditions, the EC50 value obtained after 5 minutes can only be based on a nominal substance loading value. Therefore, the EC50 value should be treated with some caution when considering hazard identification and risk characterization for the appropriate environmental compartment.
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