A PROPOSED CANADIAN STANDARD FOR ESTIMATING ATMOSPHERIC DISPERSION OF COMBUSTION SOURCE POLLUTION FROM CHIMNEYS

Rising public concern over the persistent nature of air pollution may be expected to result in more stringent ambient air quality criteria. Hence, until air resource management becomes a reality, there is a requirement for a simple yet reliable method of estimating the dispersion of combustion source chimney effluents. To satisfy this need an empirical plume rise equation was developed and together with established diffusion equations, it provides the basis for the graphical stack height calculation method described in this paper. The emissions of gaseous and particulate matter are related to heat flux, stack height and maximum ground level pollution concentrations for both a severe atmospheric inversion and a neutral atmosphere. This enables the selection of a stack height to be made which should meet any stipulated ambient pollution level. © 1969.