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Toxicity to microorganisms

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Description of key information

Method C.11 - Activated Sludge Respiration Inhibition Test, Council Regulation (EC) No. 440/2008, published in O.J.L 142, 2008. 
GLP study

Key value for chemical safety assessment

EC50 for microorganisms:
188 mg/L

Additional information

Results of the respiration inhibition test

 

On the basis of the effective concentrations describing the respiration inhibition of activated sludge caused by the test substance, the EC50 was found to be:

 

EC50 = 188 mg/L (95% confidence interval: 73.8 – 357 mg/L)