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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 to biological treatment plants in appropriate low concentrations. 

Key value for chemical safety assessment

Additional information

An experimental study according to OECD guideline 209 revealed an EC10 of 100 mg/L and an EC50 >= 100 mg/L. There was a slight inhibition of the respiration rate of 9.9% at the high dose loevel of 100 mg/L.