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Obtain the skills you need to bridge the gap between scientific theory and real-world operations.This course provides those new to the field, recent graduates, and those wanting a refresher, practical experience to bridge the gap between scientific theory/knowledge and real-world skills.Combining lectures, demonstrations, and hands-on activities, you will learn how to, among others: Visit NGWA.org to view the full details of this course. ® A recognized leader in groundwater education.

The vapor intrusion of volatile organic compounds (VOCs) into buildings has special relevance in human health risk assessment. Prediction of indoor air VOCs concentration by applying numerical or analytical models eventually fails due to the lack of input parameters, such as the VOCs effective diffusion coefficient through building material used as foundation or isolation material. Passive migration of VOCs from contaminated sites into indoor air through construction and isolation materials has not been extensively investigated. Our findings showed that the mass flux through building material is not negligible, but it could be reduced partly, and to a minimum, with the utilization of concrete and geo-membranes, respectively. As a result of our investigation, effective diffusion coefficients of BTEX and chlorinated solvents, as well as the correlation between specific compounds’ parameters and the estimated effective diffusion coefficient, are provided.