INTRODUCTION What is Perchlorate? How is it Measured? How Does Perchlorate Move Through the Environment? What are the Implications of Human and Ecological Exposures to Perchlorate? What are the Regulatory Limits on Perchlorate? How Can Perchlorate be Treated? Organization of this Book SOURCES, PROPERTIES, AND CASE STUDIES Environmental Sources Physical and Chemical Properties of Perchlorate Case Studies: Contaminated Sites References HOW IS PERCHLORATE MEASURED? Initial Perchlorate Analysis Methods Development of Alternative Methods Environmental Media - U.S. EPA Methods Biological Media Field Methods Forensic Analyses Ongoing Method Development Developing a Strategy for Perchlorate Analyses Summary References HOW DOES PERCHLORATE BEHAVE IN THE ENVIRONMENT? Source Behavior Advection and Dispersion Sorption Biological Transformation Summary References WHAT ARE THE IMPLICATIONS OF HUMAN AND ECOLOGICAL EXPOSURES TO PERCHLORATE? Overview of Potential Human Health Effects and Components of Risk Assessment Overview of Ecological Risk Assessment Summary and Conclusions References WHAT ARE THE REGULATORY LIMITS ON PERCHLORATE? Risk Management and Regulatory Limits Summary and Conclusions References HOW CAN PERCHLORATE BE TREATED? Groundwater Extraction Separation Technologies Destruction Technologies Summary and Conclusions ReferencesEHAVE IN THE ENVIRONMENT? Source Behavior Advection and Dispersion Sorption Biological Transformation Summary References WHAT ARE THE IMPLICATIONS OF HUMAN AND ECOLOGICAL EXPOSURES TO PERCHLORATE? Overview of Potential Human Health Effects and Components of Risk Assessment Overview of Ecological Risk Assessment Summary and Conclusions References WHAT ARE THE REGULATORY LIMITS ON PERCHLORATE? Risk Management and Regulatory Limits Summary and Conclusions References HOW CAN PERCHLORATE BE TREATED? Groundwater Extraction Separation Technologies Destruction Technologies Summary and Conclusions References.