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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The inhibition of degradation activity of activated sludge is not anticipated when introduced to biological treatment plants in appropriate low concentrations. 

Key value for chemical safety assessment

EC10 or NOEC for microorganisms:
90 mg/L

Additional information

The effects of test substance on aquatic microorganisms were investigated in a short-term respiration test similar to OECD 209 using activated domestic sludge. Based on nominal concentrations an EC10 (30 min) of 90 mg/L was determined.