The Third Edition of a bestseller, this is a practical guide to biological monitoring for industrial assessment. It reflects the growth in knowledge, as well as changes in the industry, made since the second edition published in 1993. The revisions include major changes to the information on lead, benzene, trichloroethylene, and dimethylformide, fourteen new topics, discussion of the metabolic fate of chemicals, and the development of biological monitoring methods for assessing the internal dose of additional chemicals not previously addressed in the first two editions.