While earlier editions of this best-selling work have become standard texts for students and professionals alike, both the science and the practice of air quality management continue to evolve. Air Quality, Third Edition includes all the new issues and challenges, as well as updated coverage of all the familiar concerns of environmental professionals. This is a complete overview of the topic, written in an accessible, highly readable style by a respected expert in the field.The Third Edition has been significantly revised. A new chapter on quantitative methods adds an engineering perspective to the subject and makes this book especially valuable to students and professionals. Revisions and additions to the information on indoor air quality reflect the increasing importance of this maturing science. The book's comprehensive approach makes it valuable in many areas of study, including all areas of environmental science, engineering, industrial hygiene, and health and safety programs.