Air pollution is a serious problem that we as a society face today. It refers to the pollution of air by emission of biological molecules, particulates and other dangerous substances into the atmosphere. The main causes of air pollution are the emissions of poisonous gases from industries, a/cs and cars, like carbon monoxide, methane, carbon dioxide, etc. Air pollution is causing lethal damage to the health and welfare of humans and animals, therefore, the study and control of this problem is essential. This book is a compilation of chapters that discuss the most vital concepts in the field of air pollution. It includes detailed explanation of the various concepts and methods applied to control of this issue. This textbook is an essential guide for both academicians and those who wish to pursue this discipline further.