The book is titled as "" as it answers all the basic questions arises in mind regarding air pollution. With the advent of technology we have invited many problems. The deterioration of air is one of the several aftermaths. It has been discussed for a long time but to no avail as problems due to air pollution are increasing day by day. The situation is horrendous in developing countries. This book discusses all the aspects of encumbering air pollution including its causes and effects. The book explains each and every topic in simple and easy language. The book includes empirical data of various eminent organizations .It also embodies indoor pollution which is gaining its presence very fast.