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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Depending on local conditions and exisiting concentrations, disturbances in the biodegradation process of activated sludge are possible.

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
23 mg/L

Additional information

Changes in the respiration rate of activated sludge in the presence of the test substance were examined in a guideline study according to OECD 209 with domestic activated sludge as inoculum. After an exposure of 180 minutes, an EC20 of 64 mg/L based on nominal concentrations was determined (BASF SE 2010).