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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 appropriate low concentrations.

Key value for chemical safety assessment

Additional information

The toxic effects of the mixture on aquatic microorganisms were investigated in a short-term respiration test according to the OECD guideline 209 using activated domestic sludge. Based on nominal concentrations an EC50 (180 min) > 1000 mg/L was determined [Evonik Oxeno 2009].