Registration Dossier
Registration Dossier
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EC number: 218-500-4 | CAS number: 2164-17-2
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to microorganisms: EC50 (3h) could not be calculated ( activated sludge of sewage treatment plant), OECD Guideline 209: “activated sludge with the respiration inhibition test”.
Key value for chemical safety assessment
Additional information
For Fluometuron the percent inhibition values at 100 mg/l, the highest rate tested, were significantly below 50%. Therefore an EC50 value could not be calculated for the toxic effects on activated sludge. This is in accordance with closed bottle test (Barnes, 2002) which showed no significant effects on sewage sludge. Fluometuron can be assessed to be non-toxic on sewage sludge
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