Riskarising from work activities, risks in operating machinery and equipment, the influence of the working environment and working conditions on human behavior in the work process, effective prevention tools, eliminating risks to resources and minimizing their effects, the root causes of sources of damage to human health at work, characteristics of working conditions and load, basic factors influencing the level of safety and health at work (OSH), information on complex safety and hygiene risks, the influence of the human factor on occupational safety and health (influences of the working environment as well as extracurricular influences), influence of physical factors PP (light, heat and cold, ionizing and non-ionizing radiation, noise and vibration), working positions, effect of chemicals, stress, social and psychological influences, environmental impacts, safety and health at work focused on hydrogen technologies (production, storage, transport and use of hydrogen for commercial purposes).