Environmental Health as the ecological balance that must exist between man and his environment in order to entire his well – being concern the whole man not only his physical health but also his mental health and optimum social relations with his environment. In the same way its concern the whole environment from the individual human well-being to the entire atmosphere.
Environmental Health is concern with the control of all physical, chemical and biological processes, influence, and factor that exercise or may exercise, by direct or indirect means, a significant effect on the physical and mental and social well-being of man and his society.