This book is the first to explore occupational air contaminant measurement and properties, human exposure assessment, design of exposure strategies, and the statistical interpretation of exposure measurements in one comprehensive source. The book covers not only the technological aspects of measuring air contaminants - gases, vapors, and aerosols - but also the occupational hygiene framework within which such measurements take place. Though designed for textbook use, the books all-inclusive exploration of the major theories and practices of occupational exposure assessment for air contaminants also serves as a guide for professionals working in the field.