This course will cover fundamental principles and practical aspects of developing a detailed vapourintrusion ground model and how multiple lines of evidence are used to predict vapourintrusion risks and inform appropriate mitigation measures. Fundamental principles will include the different sources of VOCs, key differences in chlorinated and petroleum hydrocarbons behaviour and vapourintrusion potential, commonly identified in the sub-surface, how they partition and move in the ground and how building design and additional factors affect and drive vapourintrusion. Methods for VOC investigation and analysis will be covered, with an understanding of uncertainty and conservatism in the use of laboratory data to predict vapourintrusion risks. You will gain an understanding of when to conclude that no significant risks are posed and when and how to undertake a more detailed assessment of vapourintrusion risks using practical and flexible modelling methods. The use of models to assess different floor types and the requirement and efficacy of proposed mitigation methods will also be covered.
