Abstract
The results of the assessment of the degree of atmospheric pollution in the territory of the Udmurt republic by the method of moss biomonitors in combination with instrumental neutron activation analysis are presented. Concentrations of 37 macro-, micro- and trace elements were determined in moss samples. The factors of accumulation of individual elements are calculated using background values of their concentrations. The background concentration is determined by finding three minimum values and finding the average using descriptive statistics methods. Based on the analytical results, maps of the spatial distribution of heavy metals and other toxic elements in the study area were constructed using GIS technologies. Factor analysis was used as a method of multidimensional statistical analysis to identify the main sources of pollution — large industrial facilities located on the territory of the Udmurt Republic. This study is a continuation of work for other regions of Russia using multi-element instrumental neutron activation analysis and modern GIS technologies.
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