Abstract
In an area of low contamination, it is difficult to determine the maximum permissible limit of a discharged amount of an air pollutant. In this case, we studied the possibilities and limits of the LP method, and we introduced the method using imaginary sources of air pollution.
1) There are several theoretical considerations regarding the optimals of the LP method. Assume that an area consists of two districts, A and B, and that it is designed to determine the influence of all pollution sources in each district. If we take the total of the discharged amount of air pollutant as the object function of the LP method, optimals may sometimes be zero or negative. In this case, we may take another object function or another method.
2) An example using the inland area of Hyogo Prefecture is discussed. Air pollutant is sulfur dioxide and simulation model is Plume model (Sutton's equation).
3) Imaginary sources of air pollution are studied. In order to find reasonable optimals of the LP method, we introduced the method using imaginary sources of air pollution.
