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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The 3-h EC50 and 3-h NOEC were both >160 mg/L in activated sludge based on respiration inhibition, this corresponds to a 3-h EC50 and a 3-h NOEC of >87 mg/L based on fluoride. The 3-h NOEC of >87 mg F/L is used in the assessment.

Key value for chemical safety assessment

Additional information

One GLP-compliant OECD 209 guideline study is available for toxicity in microorganisms. The 3-h EC50 and 3-h NOEC were both >160 mg/L in activated sludge (Solvay, 2008c).