Book excerpt: Addressing occupational exposure assessment for air contaminants as a coherent body of knowledge, this is the first book 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 both the technological aspects of measuring air contaminants and the occupational hygiene framework within which such measurements take place. The all-inclusive exploration of the major theories and practices of occupational exposure assessment for air contaminants make this an ideal textbook for graduate or upper-level undergraduate courses.