Overview

This book introduces key concepts in modeling and risk assessments of vapor intrusion, a process by which the subsurface volatile contaminants migrate into the building of concern. Soil vapor intrusion is the major exposure pathway for building occupants to chemicals from the subsurface, and its risk assessments determine the criteria of volatile contaminants in soil/groundwater in brownfield redevelopment. The chapters feature the recent advances in vapor intrusion studies and practices, including analytical and numerical modeling of vapor intrusion, statistical findings of United States Environmental Protection Agency’s Vapor Intrusion Database and Petroleum Vapor Intrusion Databases, the challenges of preferential pathways, and the application of building pressure cycling methods, and field practices of vapor intrusion risk assessments at developed contaminated sites and in brownfield redevelopment. This volume also summarizes the advantages and limits of current applications invapor intrusion risk assessment, laying the groundwork for future research of better understanding in risk characterization of soil vapor intrusion using models.            Written by experts in this field, Vapor Intrusion Simulations and Risk Assessments will serve as an invaluable reference for researchers, regulators, and practitioners, who are interested in perceiving the basic knowledge and current advances in risk assessments of soil vapor intrusion.

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Prof. Yijun Yao is a professor at the Institute of Soil Science, Chinese Academy of Sciences. His major research interest involves site investigation, risk assessments and management of soil pollution. He is the author of several risk assessment tools, including the CVI2D and PVI2D toolkits, and Yao’s spreadsheet for risk assessments for contaminated sites. He graduated from Brown University with a Ph.D. degree in Environmental Engineering in 2012. Prof. Qiang Chen is an assistant researcher in Nanjing Institute of Environmental Sciences of the Ministry of Ecology and Environment, with a research focus on investigation and risk assessment of contaminated sites, environmental policy and decision making, and software development. He has a master’s degree in Environmental Engineering from Hohai University and is now pursuing a doctoral degree under the supervision of Prof. Yijun Yao.

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