1. It is everyone's responsibility to be merciful, stay young, and care for the environment.
Maintaining the ecological balance of the earth means protecting the number of human beings.
Where there is green, there is life.
4. The clear water resources are turning black, the blue sky is becoming gloomy, our earth is suffering, the global temperature is getting warmer, and there are often once-in-a-thousand storms, acid rain and so on.
5, our school, our classroom also needs the careful care of every student, in order to give us a beautiful environment, let us grow up healthily and study happily in a beautiful environment.
Expand one's knowledge
Environmental health is a branch of public health, which mainly studies the influence of all aspects of natural and artificial environment on human health. Environmental health pays attention to the natural and man-made environment that is beneficial to human health. The main branches of environmental health are: environmental science; Environmental and occupational medicine, toxicology and epidemiology. Other terms related to or involving environmental sanitation are environmental sanitation and health protection.
The World Health Organization (WHO) defined environmental health as those aspects of human health and diseases determined by environmental factors in document 1989. It also refers to the theory and practice of evaluating and controlling the factors that may affect health in the environment.
The environmental health used by the WHO Regional Office for Europe includes the direct pathological effects of chemicals, radiation and some biological agents, as well as the (usually indirect) effects of a wide range of physical, psychological, social and cultural environments on health and well-being, including housing, urban development, land use and transportation.
As of 20 16, who's website on environmental health pointed out that "environmental health involves all physical, chemical and biological factors except a person, as well as all relevant factors affecting behavior." It includes evaluating and controlling environmental factors that may affect behavior. Healthy. Its goal is to prevent diseases and create a healthy environment. This definition does not include behaviors unrelated to the environment, nor does it include behaviors related to the social and cultural environment and heredity. "
WHO also defines environmental health services as "services that implement environmental health policies through monitoring and control activities. They also play this role by promoting the improvement of environmental parameters and encouraging the use of environmentally friendly and healthy technologies and behaviors. " They also play a leading role in formulating and suggesting new policy areas. "