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Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Description of key information

The LC50 of > 1000 mg/kg test item  and the  NOEC) of  ≥ 4.38 mg test item/kg soil dry weight (highest test concentration, corresponding to 3202 g a.i./ha) were indicative of a low acute and chronic toxic hazard potential to earthworms.

Key value for chemical safety assessment

Additional information

The effects of the substance on soil organisms were investigated in an acute 14-day on earthworms (Eisenia fetida) according to OECD 207 and in a long term toxicity test according to OECD 222. Both studies referred to herein were conducted in accordance with the prevailing OECD testing guidelines under GLP conditions. The 14-day LC50 was > 1000 mg test item/kg dw as no mortality occurred at this concentration. The NOEC for weight was determined to be 316 mg test item /kg dry weight soil. No morphological and behavioural effects were observed.

In the earthworm reproduction study the no-observed-effect-concentration (NOEC) of the test substance of the earthworm Eisenia fetida was 4.38 mg test item/kg soil dry weight based on mortality, growth, reproduction and feeding activity, i.e. the highest concentration tested.