What is Water Pollution? Water Pollution has been defined as the addition of any substance in water or changing the water’s physical, chemical, or biological characteristics in any way that interferes with its legitimate use in its natural state. In other words, the dumping of unwanted, harmful, and toxic substances into water is known as water pollution. Sources of Water Pollution: Water pollution is both natural and anthropogenic. Natural water pollution: It is water pollution caused by natural processes of soil erosion and the addition of silt, runoff, and leaching. Anthropogenic (Man-Made) water pollution: It is water pollution caused by … Continue reading Water Pollution: Causes, Effects, & Control Measures