The toxicology of metals is discussed in these two volumes. Also included in these two volumes are chapters on ionizing radiation (some of the metals are isotopes), neurotoxicology (a toxic effect of exposure to metals) and metallocenes. This is the first time that metallocenes are discussed in any Patty's edition. All chapters in these two volumes have been updated and written by experts in the field. In addition to the metals, the halogens, bromide, chlorine and fluorine and their compounds are provided in these volumes.