This book is dedicated to the multifaceted description of the crucial issue of arsenic contamination and its effect on human health. From soil to man, this book describes the several steps from arsenic speciation in rocks, water and environment in general, through the contamination of rice-based foods in infants diet, up to the devastating effects on human health. The axis soil-food-health raises more issues than ever imagined and the book is aimed at linking all the interdisciplinary aspects involved while giving a complementary interpretation of the phenomenon. Medical geology has recently emerged as a new discipline trying to explain the events with an interdisciplinary approach and to solve the related problems for human health. Far from being exhaustive, this book is aimed at briefly addressing the 'arsenic issue' and concerns for human health while presenting the different techniques employed for arsenic removal, from natural or polymeric adsorbents to biological filtration.