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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Depending on local conditions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible.

Key value for chemical safety assessment

EC50 for microorganisms:
125 mg/L
EC10 or NOEC for microorganisms:
60 mg/L

Additional information

As key study concerning acute toxicity to microorganisms a test performed by BASF (1988) according to DIN 38412 part 8 was identified, using Pseudomonas putida as inoculum. In the static test an EC10 (17h) of 60 mg/l and a EC50 (17h) of 125 mg/l was calculated.