Decisions that impact human health are made all the time. Quantitative Environmental Risk Analysis for Human Health provides readers with the basic skills and knowledge needed to manage, evaluate, or perform environmental risk assessments and risk analyses for both chemicals and radioactive contaminants. This book explains the fundamental methodology for analyzing environmental risk with examples for selected applications.  Key elements of the environmental risk methodology include: (1) source term and release characterization, (2) migration of contaminants in various media, (3) exposure assessment, (4) dose-response evaluation, (5) risk characterization, and (6) risk communication and management.  Also included is an introduction to uncertainty analysis and environmental laws and regulations.  The new edition includes two new chapters, significant additions or modifications to five chapters, and the addition of student-oriented learning objectives at the beginning of each chapter. Case Studies is a new chapter that provides the student with four risk assessment examples representing a spectrum of purposes and levels of quantitative intensity. The second new chapter, Screening and Computational Resources, provides brief descriptions of publicly available and commercial software of potential interest to the risk analysis practitioner.