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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The inhibition of the degradation activity of activated sludge is not anticipated (EC50 > 10,000 mg/L) by read across to an analog substance EC 283-392-8.

Key value for chemical safety assessment

EC50 for microorganisms:
10 000 mg/L

Additional information

Since tests on toxicity of the UVCB substance itself to aquatic algae are not available, a conclusion by analogy approach according to Annex XI of REACH has been applied.

The effect of the analog material, EC 283-392-8, on the respiration of activated sewage sludge micro-organisms using standard guidelines gave an EC50 of >10,000 mg/L.