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Preface to the First Edition xi (2)
Preface to the Second Edition xiii(2)
List of Principal Symbols xv
1 Introduction 1 (14)
1.1 Definitions 3 (5)
1.2 Particle Size, Shape, and Density 8 (2)
1.3 Aerosol Concentration 10 (2)
Problems 12 (1)
References 13 (2)
2 Properties of Gases 15 (27)
2.1 Kinetic Theory of Gases 15 (3)
2.2 Molecular Velocity 18 (3)
2.3 Mean Free Path 21 (2)
2.4 Other Properties 23 (4)
2.5 Reynolds Number 27 (4)
2.6 Measurement of Velocity, Flow Rate, 31 (8)
and Pressure
Problems 39 (2)
References 41 (1)
3 Uniform Particle Motion 42 (33)
3.1 Newton's Resistance Law 42 (2)
3.2 Stokes's Law 44 (2)
3.3 Settling Velocity and Mechanical 46 (2)
Mobility
3.4 Slip Correction Factor 48 (3)
3.5 Nonspherical Particles 51 (2)
3.6 Aerodynamic Diameter 53 (2)
3.7 Settling at High Reynolds Numbers 55 (7)
3.8 Stirred Settling 62 (3)
3.9 Instruments That Rely on Settling 65 (2)
Velocity
3.10 Appendix: Derivation of Stokes's Law 67 (3)
Problems 70 (3)
References 73 (2)
4 Particle Size Statistics 75 (36)
4.1 Properties of Size Distributions 75 (7)
4.2 Moment Averages 82 (2)
4.3 Moment Distributions 84 (6)
4.4 The Lognormal Distribution 90 (4)
4.5 Log-Probability Graphs 94 (3)
4.6 The Hatch-Choate Conversion Equations 97 (3)
4.7 Statistical Accuracy 100 (4)
4.8 Appendix 1: Distributions Applied to 104 (1)
Particle Size
4.9 Appendix 2: Theoretical Basis for 105 (1)
Aerosol Particle Size Distributions
4.10 Appendix 3: Derivation of the 105 (3)
Hatch-Choate Equations
Problems 108 (2)
References 110 (1)
5 Straight-Line Acceleration and Curvilinear 111 (30)
Particle Motion
5.1 Relaxation Time 111 (1)
5.2 Straight-Line Particle Acceleration 112 (5)
5.3 Stopping Distance 117 (2)
5.4 Curvilinear Motion and Stokes Number 119 (2)
5.5 Inertial Impaction 121 (7)
5.6 Cascade Impactors 128 (6)
5.7 Virtual Impactors 134 (2)
5.8 Time-of-Flight Instruments 136 (2)
Problems 138 (2)
References 140 (1)
6 Adhesion of Particles 141 (9)
6.1 Adhesive Forces 141 (3)
6.2 Detachment of Particles 144 (1)
6.3 Resuspension 145 (1)
6.4 Particle Bounce 146 (1)
Problems 147 (1)
References 148 (2)
7 Brownian Motion and Diffusion 150 (21)
7.1 Diffusion Coefficient 150 (4)
7.2 Particle Mean Free Path 154 (2)
7.3 Brownian Displacement 156 (4)
7.4 Deposition by Diffusion 160 (5)
7.5 Diffusion Batteries 165 (3)
Problems 168 (1)
References 169 (2)
8 Thermal and Radiometric Forces 171 (11)
8.1 Thermophoresis 171 (5)
8.2 Thermal Precipitators 176 (2)
8.3 Radiometric and Concentration Gradiant 178 (2)
Forces
Problems 180 (1)
References 180 (2)
9 Filtration 182 (24)
9.1 Macroscopic Properties of Filters 182 (8)
9.2 Single-Fiber Efficiency 190 (1)
9.3 Deposition Mechanisms 191 (5)
9.4 Filter Efficiency 196 (4)
9.5 Pressure Drop 200 (2)
9.6 Membrane Filters 202 (2)
Problems 204 (1)
References 204 (2)
10 Sampling and Measurement of Concentration 206 (27)
10.1 Isokinetic Sampling 206 (7)
10.2 Sampling from Still Air 213 (3)
10.3 Transport Losses 216 (1)
10.4 Measurement of Mass Concentration 217 (5)
10.5 Direct-Reading Instruments 222 (3)
10.6 Measurement of Number Concentration 225 (3)
10.7 Sampling Pumps 228 (2)
Problems 230 (1)
References 231 (2)
11 Respiratory Deposition 233 (27)
11.1 The Respiratory System 233 (2)
11.2 Deposition 235 (7)
11.3 Deposition Models 242 (3)
11.4 Inhalability of Particles 245 (4)
11.5 Respirable and Other Size-Selective 249 (8)
Sampling
Problems 257 (1)
References 258 (2)
12 Coagulation 260 (18)
12.1 Simple Monodisperse Coagulation 260 (8)
12.2 Polydisperse Coagulation 268 (4)
12.3 Kinematic Coagulation 272 (4)
Problems 276 (1)
References 277 (1)
13 Condensation and Evaporation 278 (26)
13.1 Definitions 278 (3)
13.2 Kelvin Effect 281 (2)
13.3 Homogeneous Nucleation 283 (2)
13.4 Growth by Condensation 285 (3)
13.5 Nucleated Condensation 288 (4)
13.6 Condensation Nuclei Counters 292 (2)
13.7 Evaporation 294 (7)
Problems 301 (1)
References 302 (2)
14 Atmospheric Aerosols 304 (12)
14.1 Natural Background Aerosol 304 (3)
14.2 Urban Aerosol 307 (5)
14.3 Global Effects 312 (2)
Problems 314 (1)
References 315 (1)
15 Electrical Properties 316 (33)
15.1 Units 316 (2)
15.2 Electric Fields 318 (2)
15.3 Electrical Mobility 320 (3)
15.4 Charging Mechanisms 323 (8)
15.5 Corona Discharge 331 (2)
15.6 Charge Limits 333 (2)
15.7 Equilibrium Charge Distribution 335 (3)
15.8 Electrostatic Precipitators 338 (3)
15.9 Electrical Measurement of Aerosols 341 (5)
Problems 346 (1)
References 347 (2)
16 Optical Properties 349 (30)
16.1 Definitions 350 (2)
16.2 Extinction 352 (6)
16.3 Scattering 358 (6)
16.4 Visibility 364 (6)
16.5 Optical Measurement of Aerosols 370 (6)
Problems 376 (1)
References 377 (2)
17 Bulk Motion of Aerosols 379 (7)
Problems 385 (1)
References 385 (1)
18 Dust Explosions 386 (8)
Problems 392 (1)
References 392 (2)
19 Bioaerosols 394 (8)
19.1 Characteristics 394 (2)
19.2 Sampling 396 (4)
Problems 400 (1)
References 400 (2)
20 Microscopic Measurement of Particle Size 402 (26)
20.1 Equivalent Sizes of Irregular 402 (6)
Particles
20.2 Fractal Dimension of Particles 408 (5)
20.3 Optical Microscopy 413 (3)
20.4 Electron Microscopy 416 (6)
20.5 Asbestos Counting 422 (2)
20.6 Automatic Sizing Methods 424 (1)
Problems 425 (1)
References 426 (2)
21 Production of Test Aerosols 428 (19)
21.1 Atomization of Liquids 428 (6)
21.2 Atomization of Monodisperse Particles 434 (4)
in Liquid Suspensions
21.3 Dispersion of Powders 438 (5)
21.4 Condensation Methods 443 (2)
Problems 445 (1)
References 446 (1)
Appendices 447 (18)
A1. Useful Constants and Conversions Factors 447 (2)
A2. Some Basic Physical Laws 449 (2)
A3. Relative Density of Common Aerosol 451 (1)
Materials
A4. Standard Sieve Sizes 451 (1)
A5. Properties of Gases and Vapors at 293 K 452 (1)
[20(degree)C] and 101 kPa [1 atm]
A6. Viscosity and Density of Air versus 452 (1)
Temperature
A7. Pressure, Temperature, Density, and Mean 453 (2)
Free Path of Air versus Altitude
A8. Properties of Water Vapor 455 (1)
A9. Properties of Water 455 (1)
A10. Particle Size Range of Aerosol Properties 456 (2)
and Measurement Instruments
A11. Properties of Airborne Particles at 458 (2)
Standard Conditions
A12. Slip Correction Factor for Standard and 460 (1)
Nonstandard Conditions
A13. Properties of Selected Low-Vapor-Pressure 461 (1)
Liquids
A14. Reference Values for Atmospheric 462 (2)
Properties at Sea Level and 293 K [20(degree)C]
A15. Greek Symbols Used in This Book 464 (1)
A16. SI Prefixes 464 (1)
Index 465

The #1 guide to aerosol science and technology -now better than ever Since 1982, Aerosol Technology has been the text of choice among students and professionals who need to acquire a thorough working knowledge of modern aerosol theory and applications. Now revised to reflect the considerable advances that have been made over the past seventeen years across a broad spectrum of aerosol-related application areas - from occupational hygiene and biomedical technology to microelectronics and pollution control -this new edition includes: * A chapter on bioaerosols * New sections on resuspension, transport losses, respiratory deposition models, and fractal characterization of particles * Expanded coverage of atmospheric aerosols, including background aerosols and urban aerosols * A section on the impact of aerosols on global warming and ozone depletion. Aerosol Technology, Second Edition also features dozens of new, fully worked examples drawn from a wide range of industrial and research settings, plus new chapter-end practice problems to help readers master the material quickly.