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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

The toxicity of cetrimonium bromide to soil macroorganisms is based on calculation by the equilibrium partitioning method based on the assumption that the soil toxicity from the freely-dissolved substance in the pore water is the same as the aquatic toxicity of the substance. The aquatic toxicity relevant for the assessment of the toxicity to soil macroorganisms is assumed to be the toxicity to aquatic crustaceans represented by a NOEC of 23 µg/L (Daphnia magna, 21 d). The toxicity of cetrimonium bromide to soil macroorganisms is calculated to be 620 mg/kg soil.

Key value for chemical safety assessment

Long-term EC10, LC10 or NOEC for soil macroorganisms:
620 mg/kg soil dw

Additional information