From Darkness to Light is the true story of how two little-known men, guided by unseen celestial forces, confronted and overcame overwhelming obstacles to create a new understanding of the root causes of world disorder and its bitter fruit of widespread anxiety.

This book is dedicated to the occurrence and behaviour of PHEs in the different compartments of the environment, with special reference to soil. Current studies of PHEs in ecosystems have indicated that many industrial areas near urban agglomerates, abandoned or active mines, major road systems and ultimately also agricultural land act as sources and at the same time sinks, of PHEs and large amounts of metals are recycled or dispersed in the environment, posing severe concerns to human health. Thanks to the collaboration of numerous colleagues, the book outlines the state of art in PHEs research in several countries and is enforced with case studies and enriched with new data, not published elsewhere. The book will provide to Stakeholders (both Scientists Professionals and Public Administrators) and also to non-specialists a lot of data on the concentrations of metals in soils and the environment and the critical levels so far established, in the perspective to improve the environmental quality and the human safety.

Based on studies from countries in Africa, South America and Asia, looks at small-scale mining activities which often are both illegal and environmentally damaging, and dangerous for workers and their communities. Gives an overview on the issues and challenges involved, concluding about how sustainable development can be achieved.