The total contaminant concentrations in the environment are not necessarily indicative of the nature and severity of the biological effects. The use of bioaccessible and bioavailable concentration offers a meaningful alternative.
Over the years, many models and systems have been developed to measure bioaccessibility and contaminant exposure from contaminated soils or other solid particles like dust. The correct estimation of bioaccessibility is of a major importance for human health risk assessment. The bioaccessibility of remaining contaminants after remediation also determines the suitability of performed remediation.