fraction of hazardous elements present in bioavailable formthan to total concentration (Antunes et al., 2008; Kim et al., 2009).
However, in this research, a good correspondence between toxicity profiles and available
concentration was not found in the tested soils.
This disagreement indicates that other factors than element concentration could be affecting
toxicity.
To help interpret these results and better discern the causes of effects due to contaminants and geochemical soil properties, assays were performed at different soil dilutions.