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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The EC50 is stated as > 1000 mg/L. 
The NOEC is stated as 10 mg/L.

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L
EC10 or NOEC for microorganisms:
10 mg/L

Additional information

The inhibition of nitrification at the concentration 1,000 mg/L was 46%. Therefore, the EC50 is stated as > 1000 mg/L.

In the treatment 10 mg/L, no significant inhibition (< 10%) was detected. Therefore, the NOEC was stated as 10 mg/L.