Air pollution is caused by the release of harmful gases, particulates, aerosols and biological molecules into the air. These pollutants endanger the life of humans and pose serious health risks. They are responsible for causing allergies, asthma, cardiovascular diseases and lung cancer. This increases the importance of air quality monitoring and management to measure the quality and degradation of air. Continuous monitoring methods, gravimetric particulate methods and passive monitoring methods are some techniques employed to check air quality. The data obtained is thus used to evaluate the air quality index. Higher air quality index signifies a more polluted air. From theories to research, case studies related to all contemporary topics of relevance to this field have been included in this book. Most of the topics introduced herein cover new techniques and the applications of air pollution monitoring and management. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject.