Registration Dossier

Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Acute toxicity to earthworm: LC50 (14d): 648 mg/kg soil d.w.

Key value for chemical safety assessment

Additional information

Acute toxicity to Eisenia fetida was tested in a study according to OECD guideline 207. The 14d- LC50 value was 648 mg/kg soil (BASF AG 2001). Ma et al. (1990) studied long-term effects (20 y) on nitrogenous fertilizers usage on lumbricid earthworms in soil. This study revealed that, IBDU (2 applications per year of 180 kg N/ha = 216 mg IBDU/kg soil) had effects on earthworm numbers and biomass. However, the effects were attributed to the lowering of pH observed in parallel with IBDU application in the absence of liming.