This book was originally published as Patty's Industrial Hygiene and Toxicology in 1948 and has long been recognized as the premier reference for toxicological information on a large number of industrial chemicals. It includes comprehensive toxicological data for industrial compounds, including CAS numbers, physical and chemical properties, exposure limits, and biological tolerance values for occupational exposures. The new edition provides updates for 90 chapters and features 20 new chapters. New Editors-in-Chief, and for the first time a group of Associate editors, bring a diverse new perspective and a more international focus. Prev. ed.: 2012.