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Ecotoxicological information

Toxicity to soil microorganisms

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For microbial assays, in total 23 individual high quality EC10 or NOEC values for 2 different processes are selected for the effects assessment of V in soil. Toxicity data derived in freshly spiked soils (15 observations) vary between 3.2 mg added V/kg dw (for nitrification in a natural sandy soil from Belgium) to 670 mg added V/kg dw (for nitrification in a natural soil from Sweden). Reliable EC10 or NOEC values derived from soils where V has been equilibrated for more than 5 months (8 observations) range between 3.2 and 960 mg V/kg soil. All data are based on measured added V concentrations in soil.

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