Abstract
In pollution problems we are concerned with the fate of gaseous or liquid ‘waste’ materials, i.e., substances either definitely harmful or merely undesirable from the point of view of our species, which, for lack of an economically acceptable alternative, are discharged into the atmosphere or into various bodies of water. In the vast majority of cases the relative concentration, expressed as the fraction of volume occupied, of a pollutant is quite small, at least where such concentrations seriously concern us, so that from the point of view of theory we may regard the air-pollutant or water-pollutant mixture as a very dilute solution or suspension. In consequence, the simplest formulations of diffusion laws may be used in which the bulk-velocity due to mass transfer is ignored. (To appreciate the simplification involved read pp. 449–455 of Eckert and Drake (1959).)
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© 1973 D. Reidel Publishing Company, Dordrecht, Holland
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Csanady, G.T. (1973). Molecular Diffusion. In: Turbulent Diffusion in the Environment. Geophysics and Astrophysics Monographs, vol 3. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2527-0_1
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DOI: https://doi.org/10.1007/978-94-010-2527-0_1
Publisher Name: Springer, Dordrecht
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