chapter 1 Framework for Occupational Exposure Assessment -- chapter 2 Properties of Gases and Vapors -- chapter 3 Basic Concepts of Fluid Flow -- chapter 4 Uncertainties in Physical Measurements -- chapter 5 Measurement of Air Volumes and Flow Rates -- chapter 6 Gas and Vapor Sampling Methods -- chapter 7 Analytical Methods for Gases and Vapors: Gas Chromatography and Mass Spectroscopy -- chapter 8 Direct Reading Instruments for Gases and Vapors -- chapter 9 Basic Aerosol Properties -- chapter 10 Particle Motion in a Viscous Medium -- chapter 11 Inhalation and Respiratory Tract Deposition of Aerosols -- chapter 12 Sampling of Aerosols -- chapter 13 Direct Reading Instruments for Aerosols -- chapter 14 Sampling for Pollutants of Biological Origin -- chapter 15 Variability in Occupational Exposures -- chapter 16 Occupational Exposure Assessment Strategies -- chapter 17 Exposure Modeling -- chapter 18 Reconstructing Historical Exposures.