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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

Key value determined at GLP accredited laboratory study in accordance with OECD Guideline 222 and ISO/FDIS 11268-2.
The key value is the lowest NOEC reported for reproduction.

Key value for chemical safety assessment

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

Additional information

There was no treatment-related mortality of adult earthworms exposed to 4-(1-methyl-1-phenylethyl)-N-[4-(1-methyl-1-phenylethyl)phenyl]aniline at 62.5, 125, 250, 500, and 1000 mg/kg dry soil for 28 days. Based on body weight and survival data of adult earthworms, the no observed effect concentration (NOEC) was determined to be 1000 mg/kg dry soil, the highest concentration tested. There were no reductions of 50% or greater for the numbers of juveniles produced in the treatment groups in comparison to the negative control group, therefore the EC50 for reproduction was greater than 1000 mg/kg dry soil, the highest concentration tested. The NOEC was 62.5 mg/kg dry soil and the LOEC was 125 mg/kg dry soil, based on the numbers of juveniles produced.