We use the term “environmental pollution” to refer to the presence, in the atmosphere, of physical, chemical or biological agents, in forms and concentrations that are or may be harmful to health, safety or welfare of the human life, plant or animals.
The social behavior of man, which led him to communicate through language (which later formed the human culture) enabled him to differentiate from other living beings. But while he was able to adapt to the environment to survive, man also modified it as needed. Technological progress, on one hand, and rapid population growth, on the other, produced (and still producing) alterations of the environment itself, in some cases threatening the ecological balance of the Earth.
As civilization go on and population continue to growth, maintenance of ecological balance it is important to avoid irreparable damages to the Earth. This requires protecting renewable and non-renewable resources and realizing that environmental sanitation is essential for life on the planet.
Pollution is one of the most important environmental problems facing our world. Contamination can arise from certain manifestations of nature (natural sources) or due to different production processes made by man (anthropogenic sources).
Sources that cause pollution of anthropogenic origin are most important: industrial (refrigerators, slaughterhouses and tanneries, mining and oil), commercial (wrappers and packaging), agricultural (agrochemicals), home (packaging , diapers, garden waste) and sources mobile (vehicle exhaust gases).
Traditionally, when we talk about pollution, we divide it into three parts air, water and soil pollutions. This division is purely theoretical since most of the pollutants interact with more than one environmental elements.