ABSTRACT
A brief outline of the application of dispersion modelling to the estimation of odour nuisance is given. This is followed by some approximate methods of estimating concentrations arising downwind of buildings and fields. These methods are intended to provide best estimates of concentrations and nuisance arising from odorous compounds rather than to provide a rigorous discussion of the fluid mechanics involved. By comparison with empirical formulae relating distance of complaint to odour emission obtained from a large number of experimental studies, the dispersion modelling approach is shown to provide reasonably accurate results.
