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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

In a guideline study changes in the respiration rate of activated sludge in presence of the test substance was investigated. The study was set up according to OECD guideline 209 with domestic activated sludge as inoculum. After 30 minutes incubation time an EC20 of ca. 810 mg/l (EC50 >1000 mg/l) was determined (BASF AG 1998).