Figure 2
From: Influence of application techniques on the ecotoxicological effects of nanomaterials in soil
Effect of TiO 2 applied as wet dispersions in soil and food. All tests (plant growth; earthworm reproduction, nitrogen transformation) were carried out according to the relevant OECD test guidelines in natural soil. The bars show the percent effect compared to the control. Negative values indicate stimulation. Two test concentrations (10 mg/kg; 20 mg/kg) were investigated.