Human health and ecological risk assessment is often required in the assessment and auditing of contaminated land, to:

• ensure the condition of the site does not pose an unacceptable risk to human or ecological receptors at the site or surrounding areas, and
• avoid unnecessary remediation (with associated costs) when the risk is determined to be low.

Risk assessments may include contaminant fate and transport modelling (especially groundwater plume migration and vapour intrusion assessment) and toxicological reviews.

AEA has in-house risk assessment and toxicology expertise, as well as access to a team of experts who can offer support in specific fields as required, such as ecological toxicity. We are able to independently review quantitative risk assessments undertaken by others, including as part of an environmental audit, as well as undertake our own risk assessments when the environmental consultant is lacking this area of expertise.