Preface

This book compiles chapters written by researchers who focus on the development and application of risk assessment approaches in various subjects of hydrology, water quality, human health, and industrial designing.

Risk assessment is a critical component in the evaluation and protection of natural or anthropogenic systems. Conventionally, risk assessment is involved with some essential steps such as the identification of problem, risk evaluation, and assessment review. Other novel approaches are also discussed in the book chapters. This book is compiled to communicate the latest information on risk assessment approaches and their effectiveness. Presented materials cover subjects from environmental quality to human health protection.

It's the editor's expectation that the chapters enclosed in this book will provide helpful information for risk assessment in both academic and industrial fields, and encourage the development and implementation of relevant applications for the protection of environment and human health.

> **Yuzhou Luo, Ph.D.** Department of Land, Air and Water Resources University of California (Davis) USA

**Section 1** 

**Risk Assessment in** 

**Environmental and Ecosystem Quality** 
