Health is a state of complete physical, mental and social well-being". Based on this definition, we can describe environmental health as freedom from disease or injury resulting from exposure to harmful and toxic agents and environmental conditions potentially harmful to human health. Therefore, the right to a healthy environment is one of the basic human rights, and it is necessary to undertake activities that prevent or reduce emissions of harmful substances. The work environment of every nurse/technician is home, hospital, clinics, schools. Each of these areas falls under the jurisdiction of the nurse/technician, and represents a terrain where it is possible to act with the aim of improving the state of the environment and human health. This paper will present the importance of environmental protection for the preservation of human health, the reasons for the importance of the role of nurses/technicians in promoting environmental protection, possible activities to prevent pollution and/or reduce harmful effects on health in their work units, and examples of the success of their influence on the formation public policies in the field of environmental protection.