## 7 Summary and Conclusions  
The primary objective set by the authors of the article was to create a system that would solve the task of choosing the optimal location of the emitter of pollutants in a specific area in order to meet the prerequisites set by environmental protection standards and minimise the environmental impact. In the first step, a program was created to simulate the process of propagation of pollutants in the atmosphere, based on a plume model called the Pasquill model, which is commonly used in Poland for analysis of the emission of harmful substances into the atmosphere. The same model is being used for evaluation when issuing permits for the location of potential emitters by the Ministry of Environment of the Republic of Poland. The next step was to prepare maps of the analysed area in order to be able to use the actual land coverage data as well as the existing pollution background in the created application. The study included values of the aerodynamic roughness length \(Z_{0}\), as well as the existing pollutant concentration. The appropriate accuracy of the results obtained was guaranteed by using a calculation grid with an interval of 100 m. Particulate matter PM 10 was used as the investigated pollutant. It is worth mentioning, however, that the developed system can be used not only for various dust pollutants, but also for gaseous pollutants. The plume dispersion model used contains limitations and simplifications, but is sufficiently able to carry out calculations on a local scale. The research problem was accomplished in accordance with all the assumptions made. On the basis of the input data, such as technical parameters of the emitter and meteorological data, a simulation of the pollution dispersion from the planned emitter location was carried out. The results of the work can form the basis for extensive development of the designed system, with the possibility of extending its functionality and applications. The only limitation is the range of the area, which requires preparing the necessary maps and their  
Figure 5: Optimal location of the source of pollution with the range of the plume dispersion. analysis, including terrain and background information. By implementing the pollution propagation model, recommended in this case by the Ministry of Environment of the Republic of Poland, and by performing the necessary analyses and calculations with the introduction of real field data, as well as by taking into account the current legal norms of emission in the country, it can be concluded that the developed system can be successfully used when searching for appropriate locations for planned projects related to the emission of pollutants. In the future, the authors plan to investigate the applicability of granulation-based rough methods for vague knowledge search algorithmisation [43], and compare their results and performance with the presented MC-based approach. It is important to mention that the relevance of the content raised within this publication resulted in a project implemented under the Intelligent Development Operational Programme, 2014-2020, Priority axis II: Support for the environment and potential of enterprises to conduct R&D&I activity, Measure 2.3 Pro-innovative services for enterprises, Sub-measure 2.3.2 Innovation vouchers for SMEs. The project was implemented by the Opole University of Technology in cooperation with Atmoterm S.A. in 2018. The purpose of the project was to carry out a task called \"The use of Large Eddy Simulation (LES) to analyse the state of city ventilation\". While this research project ended in 2018, the paper was not financed by this project. All authors contributed equally to this work; formal analysis, M.M. ; resources, M.M. ; data curation, M.M. ; software, M.D. and M.H. ; methodology, M.M. ; writing--original draft preparation, P.M.D. and M.M. ; writing--review and editing, M.P. ; visualization, M.D. and M.H. All authors have read and agreed to the published version of the manuscript. This research received no external funding.