Water pollution is a major global issue affecting health, farming, and water safety. Its causes, effects, sources, and control measures are discussed in detail. In simple words, the contamination of water bodies means water pollution. Pollution of water occurs when substances that will modify the water in negative fashion are discharged in it. Lets have a look at various sources and causes of water pollution. Water pollution is an emerging global concern that threatens ecosystems, human health, and essential water resources. As populations and industrial activity expand, pollution levels rise, placing immense pressure on water quality. Water pollution is putting our health at risk. From oil spills to industrial waste, here are six major causes of water pollution.