Sources and causes of water pollution pdf

Pdf on jan 1, 2016, asha gupta and others published water. Pollution poses a serious risk to life especially when the water is a source of drinking and for domestic purposes for humans polluted waters are potent agents of diseases such as cholera, typhoid and. No literature found which discuss ed the sources of water pollution in bangladesh. Pdf causes, effects and solution of water polution. Nonpoint source nps pollution, unlike pollution from industrial and sewage treatment plants, comes from many diffuse sources. Abdul azeemtextile processingntu water pollution introduction what is water pollution. Some of the water pollution that is caused is by direct sources, such as factories, waste management facilities.

Some of the important sources of water pollution are discussed below. These sources are related to many diffuse sources and are thus difficult to. The major causes of water pollution include sewage and other oxygendemanding wastes, urbanization, agrochemical wastes, thermal pollution. Pdf sources and causes of water pollution in bangladesh. As may be evident, untreated sewage is the biggest source of such. Page 2 sources of beach water pollution natural resources defense council testing the waters 2014. This increases water temperature and lowers the metabolic rate of organisms. Water pollution is the contamination of water bodies e. Pollutants may be natural or humancaused and may include contaminants that can affect water quality such as nutrients, sediments, organochlorines, heavy metals, oil and hydrocarbons, chemical constituents and pathogens. When water pollution causes an algal bloom in a lake or marine environment, the proliferation of newly introduced nutrients stimulates plant and algae growth, which in turn reduces oxygen levels. These are directly pointed towards the water bodies from the source of origin of pollution and are thus easy to regulate. It affects their bodies, skin, lungs, brain, liver and kidneys, caused cancers, birth defects and other diseases. Water pollution is one of the biggest issues facing india right now.

Another source of water pollution is the discharge of hot water from cooling engines in the industries. The effects of pollution are greater in shallow, enclosed or slow flowing streams. Excess fertilizer, herbicides and pesticides when washed by rain into rivers causes serious danger to life. Nonpoint source pollution refers to runoff that enters surface waters through stormwater. Water pollution is not only confined to surface water but also spread to groundwater, sea, and ocean. Pollution of water occurs when substances that will modify the water in negative. Water pollution is any chemical, physical or biological change in the quality of water that has a harmful effect on any living thing that drinks or uses or lives in it. The causes of water pollution are directly related to the type of water pollution in question.

Sources and causes of water pollution that affect our environment. The major causes of water pollution include sewage and other oxygendemanding wastes, urbanization, agrochemical wastes, thermal pollution, industrial wastes, nutrient enrichment, acid rain pollution, oil spillage, the disruption of sediments. This paper focused on the causes and sources of water pollution in a broad sense. In simple words, the contamination of water bodies means water pollution. Biological poisons biotoxins are water pollutants produced by.