Introduction. The issues of ensuring the environmental safety of metalworking industries are still very relevant. Moreover, the primary role in these issues is played by the protection of atmospheric air from the emissions of industrial enterprises in this industry. For the successful implementation of measures aimed at ensuring the environmental safety of atmospheric air, it is important to study in detail the composition and properties of the emission components. Problem Statement. The aim of the study is to analyze the entire range of modern methods for measuring the parameters of the properties of metal dust, as the main component of emissions from metalworking industries; to select the method of experimental research; to conduct a dispersion analysis of metal dust particles. Theoretical Part. As a rule, the productivity of experimental studies of the parameters of the properties of pollutants largely depends on the methods that were used in the performance of the work. To solve these problems, the authors have analyzed modern methods for measuring the parameters of the properties of metal dust. The choice is made according to the basic principles: relativity, relevance, completeness, labor intensity. The conditions for the final results of the research, their accuracy and reliability, the conditions for the terms, resources, technical means of research used, and the positive and negative aspects of each of the methods under consideration are also taken into account. Conclusion. The article presents the result of the choice of the research method and the results of experimental studies of the properties of metal dust.