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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

Additional information

In a guideline study according to OECD 209 the EC20 value of the test item on activated sludge was found to be greater than 1000 mg/L (BASF AG, 1996, 96/0251/08/1). This result is supported by a GLP study according to DIN EN ISO 10712 in which an EC10 value of 2680 mg/L was determined (BASF AG, 1996, 96/0251/70/1).


Based on these results, the inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.