The environment in which human beings live is complex and we may encounter many different potentially toxic chemical substances during the course of our lives. These xenobiotic agents may invade the living system in the form of environmental pollutants, in the diet, as pharmaceutically administered compounds or even as chemical weapons and it is becoming widely recognised that free radicals are often involved in this toxicity.The book covers all aspects of toxic agents in the environment from their detection to their effects. Final year undergraduates and postgraduates studying toxicology, biochemistry, cell biology or environmental science will find this book valuable reading, whilst researchers in academia, the pharmaceutical industry, and public health laboratories will appreciate it as a comprehensive reference.