An element in the earth's crust, an additive in livestock feed. a medicine in early civilization--and the "toxin of toxins" A pervasive part of our natural environment and everyday lives. arsenic has nonetheless earned a niche in history as a substance of diabolical suppleness. Part II of the first comprehensive and up-to-date two-volume study of arsenic, Arsenic in the Environment is a self-contained work that examines arsenic's complex and potentially deadly chemistry, stressing its effect on human health and the surrounding ecosystem. Examining new and unexplored aspects of the toxin, Part II features original research from some of the world's foremost scientists on:

• Health effects of environmental arsenic
• Toxicity and metabolism of inorganic and methylated arsenicals
• Effects of arsenic on DNA synthesis of human lymphocytes
• Estimation of human exposure to and uptake of arsenic found in drinking water
• Arsenic hazards to plants and animals

Offering a host of subjects of particular interest to toxicologists, medical researchers, public health officials, and industrial hygienists, Part II of Arsenic in the Environment is an indispensable reference that sheds new light on arsenic's unique chemistry as well as its health and environmental effects.

JEROME O. NRIAGU is a professor in the Department of Environmental and Industrial Health, School of Public Health, the University of Michigan, and an adjunct professor at the University of Waterloo. For many years he was a research scientist with the National Water Research Institute, Burlington, Ontario. He is the editor of the Wiley Series in Advances in Environmental Science and Technology and has edited, among many other volumes, Nickel and Human Health, Food Contamination from Environmental Sources, Gaseous Pollutants, and Aquatic Toxicology. Dr. Nriagu received BSc and DSc degrees from the University of Ibadan, Nigeria, an MS from the University of Wisconsin, Madison, and a PhD in geochemistry from the University of Toronto. He has published extensively in leading geochemical and environmental science journals and has received a number of awards for his work. lie is a Fellow of the Royal Society of Canada.