Environmental Monitoring And Biodiagnostics Of Hazardous Contaminants

In recent years public awareness of the long term toxic affects heavy metal ions in waters and wastewaters has increased significantly. Environmental agencies have been imposing more and more stringent discharge limits on industries involved in processes using metal ions. Numerous industries produce aqueous effluents con taining metal ions and particularly copper and cadmium. Copper sulfate is used on a large scale in the electroplating industries. In addition, copper salts are used as fungicides, timber preservatives, insecticides, paint corrosion inhibitors and in dyestuffs. Cadmium is used in the manufacture of nickel-cadmium batteries, as a corrosion inhibitor and control rods in the nuclear industry. The European Com munity has listed cadmium as one of the most dangerous metal due to its toxicity, persistence and bioaccumulation in List 1 of its Directive 76/464/EEC. Therefore, it is important that methods for the removal of these metal ions are found and that the mechanism of removal is characterized and understood. A number of adsorb ents have been identified which are capable of removing copper (Panday et aI. , 1985; Ho et aI. , 1996; Low and Lee, 1987; Low et aI. , 1993; Quek et aI. , 1998) and cadmium (Battacharya and Venkobachar, 1984; Namasivayam and Ranganathan, 1995; Periasamy and Namasivayam, 1994) from aqueous solutions. Sorption kin etic models have been proposed for some systems.

This series is dedicated to serving the growing community of scholars and practitioners concerned with the principles and applications of environ mental management. Each volume is a thorough treatment of a specific topic of importance for proper management practices. A fundamental ob jective of these books is to help the reader discern and implement man's stewardship of our environment and the world's renewable resources. For we must strive to understand the relationship between man and nature, act to bring harmony to it, and nurture an environment that is both stable and productive. These objectives have often eluded us because the pursuit of other in dividual and societal goals has diverted us from a course of living in balance with the environment. At times, therefore, the environmental manager may have to exert restrictive control, which is usually best applied to man, not nature. Attempts to alter or harness nature have often failed or backfired, as exemplified by the results of imprudent use of herbicides, fertilizers, water, and other agents. Each book in this series will shed light on the fundamental and applied aspects of environmental management. It is hoped that each will help solve a practical and serious environmental problem.

The book provides an overview of the 21st century water monitoring technologies and their potential for water quality-protection. This book is best suitable as a reference for water monitoring agencies and graduate studies in water monitoring research.

While existing approaches to monitoring environmental contaminants tend to focus on a small suite of contaminant types and often involve monitoring at fixed points and at fixed times, Monitoring Environmental Contaminants focuses on a wide range of new technologies and approaches available for monitoring chemical and biological contaminants in air, water, soil and food. These new methods allow the ability to monitor a wider range of contaminants at much greater and temporal resolutions. Adoption of these methods could result in a change in our understanding of how humans and ecosystems are exposed to contaminants in different environmental media. This volume in the Environmental Contaminants Series provides an overview of a wide range of monitoring approaches ranging from citizen science networks to the use of robotics and sensor networks. Monitoring Environmental Contaminants describes challenges in the adoption of some of these new approaches and methods for dealing with these challenges such as the use of mining techniques for large data. The case studies within will provide a thorough illustration for researchers, academics, and scientists involved in ecology and environmental sciences. Brings together chapters from a wide range of research in ecology and the environmental sciences Utilizes an easily understandable style that can be absorbed by a wide audience Uses case studies to illuminate the application of selected novel contamination monitoring approaches