The meaning of word pollution means to make things dirty. Accordingly the pollution of natural resources causes imbalance in the ecosystem. Currently we have been fatally surrounded by the major issue of environmental pollution. Pollution is the addition of any foreign or poisonous substances into the environment at very fast rate than the environment natural accommodation. The main causes of this social devil are the industrialization, deforestation and urbanization, the by-products of which causes contamination to the natural resources used by the living things on the earth as a routine of normal life.
Air pollution, water pollution and soil pollution are the most dangerous forms of pollution causing direct heath disorders to the human beings. We have no safe water to drink, pure air to inhale and pollution free land to crop. This widely spreading pollution need to be taken under control for the healthy survival of life on the planet in future. Different types of pollutants which are disturbing our natural ecosystem are gases (NO, SO2, CO2, CO, NO2), halogens (iodine, chlorine, bromine), deposited matters (dust, smog, grit), agrochemicals (insecticide, pesticides, herbicides), noise, photochemical oxidants (photochemical smog, peroxyacetyl nitrate, ozone, nitrogen oxides), organic compounds from industries (acetic acid, benzene, ether), radioactive materials (radium, thorium), some solid wastes (ash, garbage), etc.
Pollution is the big side effect of the industrialized societies of the modern world where industrial development and green house effect have adversely affected the ecosystem. Life supporting systems are speedily getting converted into the life destroying system because of the industrialization. Human greediness and misuse of freeness of doing anything lead them towards serious degradation and mismanagement of resources.