HUMAN HEALTH RISK ASSESSMENT
Human Health Risk Assessment (HHRA) forms part of the generic quantitative risk assessment process and is used to ascertain whether there are any potential risks to human health, given a proposed end use. They are commonly required to satisfy the requirements of a planning condition or warranty providers such as the NHBC.
In essence, the HHRA involves the comparison of the contaminant concentrations acquired from the laboratory analysis of site samples with generic assessment criteria for a given land use (typically defined as either residential, residential with plant uptake or commercial / industrial). If any GAC are exceeded, either further assessment or remediation is required.