Environmental human health risk analysis as a tool for remediation of contaminated sites

The Environmental Human Health Risk Assessment (EHHRA) is used to define the level of risk associated with a contaminated site. In the case of chemical industries classified at major risk, accidents contribute to increase the risk level of a contaminated site. In this context the post-incidental analysis permits to determine both indirect and direct causes of accidents, to identify the measures to mitigate the consequences and to prevent similar events. In this work an application of the EHHRA procedure to a case-study is given, showing the validity of the analysis in determining the level of risk of a contaminated site and to support decision making. Moreover the use of models for the consequence analysis have permitted the assessment of the further increase of the contamination level of the site due to an accidental release of hazardous substances.