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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The 3 h NOEC and EC50 of MBB for inhibition of respiration rate of activated sludge were 3.2 and 22.4 mg/L respectively, based on nominal concentration of test material.

Key value for chemical safety assessment

EC50 for microorganisms:
22.4 mg/L
EC10 or NOEC for microorganisms:
3.2 mg/L

Additional information