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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

EC10 or NOEC for microorganisms:
8 400 mg/L

Additional information

As key study concerning acute toxicity to microorganisms a test performed by BASF (1990) following German Industrial Standard DIN 38412 part 8 was identified, using Pseudomonas putida as test organism. In the static test an EC10 for the growth inhibition of 8400 mg/L after 17 hours of exposure was calculated, related to the nominal concentration.