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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

Depending on local conditions, inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L

Additional information

As key study concerning toxicity to microorganism a test performed by BASF (1988) according to ISO 8192 was identified. Using activated sludge as inoculum in a static procedure an EC20 >1000 mg/l after 30 minutes of exposure was calculated.