Determination of the influence zone on the atmospheric pollution of chemical elements from a point source (Combined heat and power)

Semi-empirical transfer model of chemical contaminants in the atmosphere from a point source is considered in the report. The model is based on solving the diffusivity equation that takes account of the transport of impurities in the horizontal direction due to wind, turbulent diffusion and gravitational deposition in a vertical direction. In the report it is suggested to determine the modeling parameters by measurements of atmospheric pollution at several points. These points are selected in a particular direction. Epiphytic mosses are used as depositing of pollution objects. Chemical elements concentrations are determined with the help of neutron activation analysis. The considered model is used to estimate the influence zone of a point source on the basis of thermal power plant (TPP-5 Novosibirsk).