Chemical manager(s)/author(s): Malcolm Williams ... [et al.]--P. xi.

"This toxicological profile is prepared in accordance with guidelines developed by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). The original guidelines were published in the Federal Register on April 17, 1987. Each profile will be revised and republished as necessary"--P. v.

"This ed. supersedes any previously released draft or final profile"--P. iii.

"April 2004."

Includes bibliographical references and index.