The article considers measures to ensure environmental safety. The analysis of the technological process of cement production was carried out, which revealed the main sources of dust emission. The results of the study of the dispersed composition of cement dust are presented.

Keywords: disperse composition of dust, PM10 and PM2.5, environmental safety, cement dust

This article offers technical solutions to reduce the degree of anthropogenic impact on the environment during finishing work. The results of the study of finely dispersed dust during finishing works are presented and analyzed.

Keywords: Air pollution, finishing works, technical solutions, particle analysis of dust, PM10 and PM2.5

In article metallurgical production as the metallurgy is one of the main sources of technogenic environmental pollution and a working zone is considered. Authors have described the main sources of formation of fine dust by results of which the analysis of fractional structure of the dust particles which are allocated during the operation of the arc melting furnace has been carried out. The submitted data demonstrate that the dust coming to rooms of the shop has the sizes from 3 to 18 microns. The share of mass of particles with sizes less than 10 microns in air of the electrosteel-smelting shop makes from 15%.

Keywords: fine dust, disperse analysis, sources of formation of dust, steel-smelting furnace, metallurgical dust