The aim of this book is to deal with the scourge of poor hygiene, which is seriously eroding the living environment of our community, in relation to the need for safety and the protection and safeguarding of our environment. The author's approach is based on real observations in the field. This has enabled him to describe, objectively and concretely, the general state of affairs in terms of quality of life. This is the author's basis of reference, based on his own experience and deep feelings about the conditions of the environment and of being, in the face of the attitudes and behaviors of a society that has lost its traditional landmarks. The author's duty, quite rightly, is to put on the public square, without concession or complacency, the full extent of the scourges and damage caused to our environment, as well as to our state of mind and mentalities, which have unfortunately become most backward because of our passivity. This book is based on the author's own experience, having taught this subject for some ten years in a number of voluntary training courses for executives of public and private companies.