Water Pollutants and Water Pollution...

Water Pollutants and Water Pollution Water pollutants refer to the substances which are capable of making any physical, chemical or biological change in the water body. These have undesirable effect on living organisms. Water is called polluted when the water is contaminated with domestic waste and industrial effluents. When this contamination reaches beyond certain allowed concentrations then the water pollution occurs. Water is considered polluted if some substances or condition is present in the water changes it’s physical, chemical, or biological characteristics to such an extent that the water cannot be used for its intended use or for a specific purpose. Pollution affects the quality of water is an adverse way due to the addition of large amounts of unwanted materials to the water. Water pollution occurs due to the presence of excessive amounts of a hazard (pollutants) in water in such a way that it is no long suitable for its intended use. Water pollution has a duel effect on nature. It has harmful effects on the living beings and also on the environment. Water pollution has many sources and characteristics. Pollution to the water environment can come from a wide range of sources. These include agriculture (crops and livestock), atmosphere (acid rain), aquaculture, forestry, illegal dumping of waste, industry, mines, sewage, and urban areas and roads etc. When the polluted water seeps into the ground and enters an aquifer it results into ground water pollution. The pollution of ground water is a matter of serious concern. Ground water gets polluted in a number of ways. The porous layers of soil hold back solid particles while the liquid is allowed to pass through. The soluble pollutants are able to mix with the groundwater. In addition to these, the excessive use of nitrogenous fertilizers...