In recent years, several new concepts have emerged in the field of ozone science, creating a need for an in-depth publication covering the various ozone related issues. This book fills that void in the literature by providing a unique collection of our understanding of the good and bad of ozone gas. The one-of-a-kind compilation of chapters written by leading experts in the field from all over the world will serve world scientists, teachers, students, and regulators as a single reference to a global perspective on: What are the various sources for Ozone? What is happening to the good Ozone layer? How does the depletion of good Ozone affect human health and the environment? What is being done about the depletion of good Ozone? What causes bad Ozone? How does bad Ozone affect human health and the environment? There is an enormous amount of information coming out of the scientific and political arenas concerning Ozone. This books objective is to try and give the overall picture to the readers on different topics in the field of Ozone.