Smoke, Dust, and Haze: Fundamentals of Aerosol Dynamics, Second Edition

The equation in which the symbol is first used or best defined is given in parenthesis. Not all symbols appearing in the text are included.
| a p | particle radius | |
| A | aerosol surface area per unit volume of gas (1.18) or Hamaker constant (2.58) | |
| b | extinction coefficient (5.16) | |
| c | mass fraction, dimensionless (1.38) | |
| c | migration velocity in the presence of an external force field (2.27) | |
| c c | electrical migration velocity (2.35) | |
| c s | terminal settling velocity (1.21), (2.29) | |
| c t | thermophoretic velocity (2.56) | |
| C | slip correction, dimensionless (2.21) | |
| d p | particle diameter | |
| D | diffusion coefficient (2.24) | |
| D f | fractal dimension (2.23) | |
| e | electronic charge | |
| E | electric field intensity (2.34) | |
| f | friction coefficient (2.9) | |
| g | size-composition probability density function, dimensionless (1.13) | |
| G | velocity gradient in laminar shear (7.51) | |
| I | intensity of light (5.2) | |
| I ? | intensity distribution function (5.20) | |
| J | diffusion flux in one direction, or light source function (5.45) | |
| J x,J y,J z | diffusion flux components (2.1) | |
| k | mass transfer coefficient (3.7) | |
| k g,k p | thermal conductivities of gas and particle in thermophoresis (2.56) | |
| K | coagulation coefficient or collision frequency for monodisperse particles in continuum range (7.18) | |
| I P | mean free path (1.1) | |
| m | mass of particle or molecule | |
| M | molecular weight | |
| M ? | moments of particle size distribution function (1.15) | |
| n | concentration | |
| n ? | concentration... |