Of the existing methods of treating industrial wastewater (mechanical, chemical, physico-chemical and biological), it is the biological method that is of interest today, due to the fact that it is based on the ability of microorganisms and higher aquatic plants to use a variety of pollutants as a power source in the process of life, which ultimately leads to the purification of contaminated water. In the practice of wastewater treatment by the biological method, a floating plant — eichornia (water hyacinth) —was best established on the surface of the roots of which selective microbiocenoses are formed, which contribute to active biodegradation and absorption of both organic and mineral substances. The paper shows the possibility of echornia absorption of pollutants in an indoor environment and proved the possibility of purifying contaminated water with aqueous hyacinth in an indoor environment.

Keywords: water hyacinth, eichornia, pollutants, wastewater, higher aquatic plants

The article deals with the estimation of production risk and risk of occupational diseases on the basis of an assessment of the impact on the working factors of the labor process. Analysis of the working conditions according to special evaluation of working conditions. Definition of factors of production environment, harmful to the health of workers and comparative analysis of the working conditions for harmful production factors.

Keywords: occupational risk, harmful and hazardous production factors, identification, conditions of work

An approach to assessing the safety of road traffic in the context of emergencies is developed based on an integral indicator of traffic safety, the use of which allows taking into account various factors affecting safety

Keywords: traffic safety indicators, emergency situation, traffic safety assessment, road, integrated indicators

The article considers the problem of estimating production risks and risks of occupational injuries based on the assessment of the impact factors of the labor process. Definition of factors of production environment, harmful to the health of workers and comparative analysis of the working conditions for harmful production factors one.

Keywords: the risk of production of harmful and dangerous production factors, industrial injuries, working conditions

The article considers the problem of using a professional risk assessment measures the impact of factors of the labour process on health status of workers. The analysis of occupational diseases and the relationship with working conditions. Recommendations for risk management aimed at reducing the negative impact factors of production environment and labor process on the performance and health of the employee.

Keywords: occupational disease, occupational risk, harmful and hazardous production factors, identification, conditions of work