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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The 3 hour EC50 of C6 Pyrazole Hemisulfate for inhibition of respiration rate of activated sludge was 89.51 mg/L, based on nominal concentration of test material.

Key value for chemical safety assessment

EC50 for microorganisms:
89.51 mg/L

Additional information

The toxicity of C6 Pyrazole Hemisulfate on activated sludge was measured according to the OECD guideline 209 and following the GLP. All the validity criteria were fulfilled. The 3 hour EC50 of the tested substance on the respiration rate of the activated sludge was 89.51 mg/L, based on nominal concentrations.