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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

Three GLP guideline studies are available for the assessment of the toxicity of the test substance to microorganisms. Two OECD 209 studies demonstrate that the EC0 of the test substance on activated sludge is greater than 1000 mg/L (BASF AG 01/0109/08/1, 2001, and BASF AG 95/0601/08/1, 1995). Furthermore, a GLP study according to DIN 38412 part 8 showed that the EC10 (16h) on the cel multiplication of the bacterium Pseudomonas putida is greater than 10000 mg/L (nominal value).