The evaluation of degree of soil pollution the Lower Don and the Azov Sea region by nickel (Ni). Given the main geochemical characteristics of the item, its impact on human health at concentrations exceeding the MAC. Considered the main sources of Ni in the geological environment of the Rostov-on-Don city; analyzed migration routes. Allocated and described lithogeochemical anomalies with the contents of the element 1 to 3.5 MAC. Calculated basic geochemical criteria, according to which the identified categories by degree of soil pollution.

Keywords: heavy metals, migration, dispersed rocks, soils, concentration, technogenic sources, waste water, pollution, lithochemical anomaly.

Considers the results of laboratory modeling on research of the adsorption properties of dispersed rocks in relation to heavy metals associated with technogenesis the example of nickel (Ni). It presents data on the adsorption element by samples of various lithological varieties of rocks that form the subsoil strata of Rostov-on-Don city. Are determined mobile forms of Ni; evaluated the intensity of the adsorption process, lists the factors that determine changes in the Ni content of the section. The obtained experimental scientific information is important in solving the environmental, health and social and engi-neering-geological problems.

Keywords: clay rocks, physical and chemical adsorption processes, concentration of chemical elements, ionic exchange, industrial sewage water, filtration, clay minerals, sorption capacity, experimental solutes, сations

There presented paper presents the survey of industrial systems of aspiration and the results of analysis of variance of cement dust released from the equipment in this article. It was described the main technological processes, devices and related major sources of emissions and discharges of pollutants into the atmosphere in the cement factories in this paper. It was proposed a common generalized approach to determine the actual effective or hydraulic sized dust particles using by new experimental set up equipment to get high accuracy. It could be done using the results of analysis of variance (ANOVA) for sand’s dust and etc. bulk building construction materials. The development of new experimental set up equipment was ensured to decrease some negative influence of the old one. It was made a comparison changing cumulative distribution of the equivalent size of dust particles within aspiration schemes. I was fulfilled the comparison changing cumulative distribution of the equivalent size of dust particles after wet cleaners and inertial separation’s device (VZP) decreasing dust systems of aspiration schemes emissions exhausted in the atmosphere in the production of cement. The paper presents the ways to define cumulative distribution function depending of the equivalent size of dust particles of statistical processing the results of the analysis of variance by polynomial regression.

Keywords: Dust, cement, sand, cleaning apparatus, wet cleaning, building materials, wet cleaning, leakage, emissions, environment, scheme, an atmosphere, dust decreasing

In article the statistical data of a traumatism and breakdown susceptibility in building are cited. Concepts of culture of labour safety are reflected.

Keywords: The risk, injuring factors, labour safety, culture, safety, traumatism

In article questions of planning of load-lifting works are reflected and the assessment of category of degree of risk is carried out

Keywords: risk, load-lifting mechanisms, labor protection, safety, technological cards