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Toxicity to microorganisms

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Description of key information

EC50 3h > 100mg/L

Key value for chemical safety assessment

Additional information

In a 3-hr acute toxicity study sewage sludge micro-organisms were exposed to the test item at nominal concentrations of 111 and 107 mg/L in accordance with OECD 209. The IC50 value based on respiration rate was > 100 mg/L after a 3 h contact time.

This toxicity study is classified as acceptable and satisfies the guideline requirements for OECD 209 toxicity study.