Some Restrictive Meteorological Conditions to be Considered in the Design of Stacks

Abstract

Abstract There are several restrictive meteorological conditions that are of great importance in the design of stacks. The conditions considered are fumigation, fumigation, aerodynamic downwash, looping and trapping. Each condition is explained and formulae are given for the computation of ground level concentrations. Methods for determining the percentage of occurrence of these restrictive conditions from observed data are also discussed very briefly.