The paper considers the effect of sanitary and hygienic condition of occupational environment, namely the factor of increased microbial contamination, on temporary disability and reduction of labor efficiency. In this regard, it is necessary to improve the methodology and technical support of disinfection methods in order to reduce labor intensity and increase the efficiency of equipment and disinfectants. The developed deflector model serves to reduce the emissions of microorganisms into the atmosphere and improves the environmental situation. The proposed design of the ultrasonic system makes it possible to improve user experience due to the possibility to control the flow rate of the working fluid and preparations. According to the results of the experiment, the disinfection agent based on hydrogen peroxide, silver salt and a furocoumarin solution in ethyl alcohol with the use of the developed ultrasonic atomizer reduced the total microbial contamination by 8 times on average.

The article describes the characteristics of industrial injuries in modern agribusiness and effective ways of its dynamic reduction and elimination. An objective assessment of the situation in connection with the development of the industry and the presence of injuries and occupational diseases in it is given. The dynamics of injury indicators for 2013-2017 is considered, comparing them with the average values  in the Russian Federation and in agriculture.   Information is provided on the victims of the production of the country as a whole and its agriculture and forestry and hunting, fishing and fish farming with temporary disability, severe and fatal outcomes. Ways to effectively solve the problem due to the innovative solutions proposed by the authors are indicated.

The article provides and reviews information on industrial injuries in the agro-industrial complex in comparison with other types of economic activity. The general situation with the able-bodied population in agriculture and the vital system in the village, with the number of villages and its dynamics, is noted. Attention is paid to the need and the possibility of a dynamic reduction and elimination of industrial injuries in the agricultural sector. On the basis of long-term and thorough research, effective ways of solving the problem are proposed.

The article is devoted to the study of fire safety based on the calculation of fire risks in the objects of trade and cultural purpose in the event of a conditional fire. The conditions for safe evacuation of people in the event of a fire in the areas of the object, characterized by a significant concentration of people are substantiated. In both cases, a differential (field) fire model was used to calculate the dynamics of fire hazards. The formation of a three-dimensional computational domain was carried out in the Pyrosim program. In the article, the calculations of the dynamics of fire hazards were carried out, the measurements of which were carried out in seven conventionally accepted comparison points (locations of sensors-meters OFP). The estimated time to evacuate people is generally determined by simulating the movement of people before going outside. The choice of the method for determining the estimated time of evacuation was made taking into account the specific features of the space-planning solutions of the building, as well as the features of the contingent.  As a model for calculating the evacuation time, an individual flow model of human traffic was used. Calculations for the considered scenarios of fire in the area of cinemas and in the area of the shopping hall showed that the individual fire risk for people   is 8.94·10-8 and 2.63·10-7 year-1, respectively, that is, does not exceed the normative value. The results of the individual fire risk assessment can be used to confirm the compliance of the object of protection with fire safety requirements.

It is shown the reserve to improve the efficiency of the cattle industry by determining the type of higher nervous activity in heifers, to study the level of their morbidity, safety and quality of economically valuable indicators obtained from them heifers from birth to 9 months of age. It is established that the quality of economically valuable indicators in heifers of strong balanced mobile type of higher nervous activity and strong balanced inert type of higher nervous activity is higher than in animals of strong unbalanced type and weak type of higher nervous activity