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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

The mean median inhibitory concentration of Surfynol 104 Surfactant to activated sludge respiration was in the range of 680 to 840 ppm. Because the limits of sample solubility may have been reached or exceeded at test temperature, the lower EC 50 may be more reliable.
The median inhibitory concentration of the reference toxicant, 3,5-dichlorophenol was found to be in the range of 5.6 to 14.5 ppm. This level met the criterion for test validity in accordance with the OECD guideline (3 hour EC50 from 5-30 mg/L).

Key value for chemical safety assessment

EC50 for microorganisms:
680 mg/L

Additional information