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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

In an activated sludge respiration inhibition test according to OECD guideline 209 (BASF SE, 2017), an EC50 of > 1000 mg/L was determined (EC10 = 220 mg/L).

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L
EC10 or NOEC for microorganisms:
220 mg/L

Additional information

The influence of the test substance on the respiration inhibition of microorganisms was investigated in a GLP guideline study according to OECD guideline 209 (BASF SE, 2017). Activated sludge from municipal sewage treatment plant, which predominantly receives domestic sewage, was exposed to nominal concentrations of 12.3, 37.0, 111, 333, and 1000 mg/L test substance in a static setting. After 3 hours of exposure an EC50 of > 1000 mg/L (nominal) was determined (EC10 = 220 mg/L).