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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriately low concentrations.

Key value for chemical safety assessment

EC10, LC10 or NOEC for microorganisms:
490 mg/L

Additional information

The toxicity to microorganisms was determined in a short-term respiration test according to OECD TG 209 using domestic activated sludge. After 180 min the EC10 was 490 mg/L based on nominal concentrations (BASF, 2010).