Review of environmental risks associated with the use of tetracycline. Micro-contamination with tetracycline has both medical risks associated with the manifestation of antibiotic resistance in bacterial communities, and environmental risks associated with changes in the transformation of substances in ecosystems and the impact on biodiversity by inhibiting certain species of plants, animals and microorganisms.Micro-contamination with tetracycline antibiotics entails a number of environmental risks. Due to the widespread use, the spread of tetracycline antibiotics in the environment has a global scale. The effect of tetracycline is observed in many objects. The spread of tetracycline is promoted by veterinary use, both directly and as a result of the use of animal waste as fertilizers for agricultural crops and pastures. As a result of the study, the following possible environmental consequences of micro-contamination of the environment with tetracycline were identified:1. Disruption of the work of bacteria included in the bacterial complex of activated sludge at sewage treatment plants using this technology, as well as during composting and affecting the processes of denitrification;2. Impacts on soil microbial communities by suppressing a number of processes of substance biodegradation and changing the biodiversity of microorganisms;3. The risks of micro-contamination of plant communities with tetracycline coming from organic fertilizers are associated with the inhibition of a number of root nutrition processes, species-specific for different crops;4. Microcontamination of marine communities with tetracycline is primarily associated with the impact on producers - algae and cyanobacteria, inhibiting their growth. And secondly, to the subsequent food chains by bioaccumulation in the tissues of vertebrates;5. The toxic effect of small doses of tetracycline from the soil on certain invertebrate species has been shown.

One of the numerous negative consequences of the COVID-19 pandemic is the "second epidemic" of negative psychological effects. Population stress in modern conditions can serve as a catalyst for mental disorders of teachers and students. In the present situation, restrictive and special measures should be considered as additional harmful socio-biological factors for participants of the university educational process.

The review is devoted to the analysis of scientific publications, as well as regulatory legal acts and documents in the field of radioecology and radiation situation assessment in the Baltic Sea. To date, certain areas of the Baltic Sea are classified as environmentally unfavorable in terms of a number of harmful (polluting) substances that have a negative impact on the environment, including radiation conditions. The article deals with two main aspects of radioecology problems: international and regional (Russian) within the Baltic Sea. Potentially hazardous objects and the main radioecological problems that are relevant at this time and require scientific and practical solutions have been analyzed. The objects of negative impact in the course of the study were taken into account generally accepted four main components with different concentrations of pollutants: water, organisms and suspended organic matter, sediments and surface film. Having studied and analyzed the statistical data of scientific research using the methods of generalized data processing, systematization and comparative analysis, a general conclusion about modern approaches to assessing and predicting the radiation situation in the Baltic Sea has been drawn. In our opinion, improving the efficiency of systems for ensuring radioecological safety is relevant at the present time and requires a constant and comprehensive analysis of its state, which may allow timely assessment and forecasting of the radiation situation in the Baltic Sea. Secondly, it is necessary to combine the efforts of the scientific community, public organizations and practicing professionals of industrial corporations from all countries of the region, which will increase the level of environmental safety of the Baltic Sea.

Issues related to the updating of professional standards for workers of 3-4 skill levels are relevant for all sectors of the national economy. In this study, we have analyzed the qualifications and training of the main participants in the labor market in the field of biomedical waste management in health care organizations, agriculture and veterinary medicine, food and biotechnology industries, food trade, hospitality sectors, tourism, as well as other organizations in which medico-biological waste is generated. The purpose of this work is to analyze the algorithm for updating professional standards for management of medical and biological waste specialists. In the course of updating the Professional standard Worker in the area of medical and biological waste management, employees of the Department of Industrial Ecology of the Saint Petersburg Chemical and Pharmaceutical University of the Ministry of Health of the Russian Federation made a proposal to supplement the labor functions of this standard with new competencies and a new qualification Specialist in medical waste management, formed in the organizations of pharmaceutical activity.