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8ways in which the water pollution impact globally
Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels (international down to individual aquifers and wells). [ It has been suggested that it is the leading worldwide cause of deaths and diseases,[1][2] and that it accounts for the deaths of more than 14,000 people dailyWater sources that are near factories and manufacturing plants may be contaminated with heavy metals like mercury, lead, cadmium, iron, magnesium and aluminum. If the metals attach to the sediment, they may find their way into the food chain via plants
and aquatic animals. The end result is heavy metal poisoning if the concentration in the water is high enough. Making polluted water fit for consumption and use again is not an easy process. No one purification or filtration method works for all types of water pollution. In order to make water usable again after water pollution, it must be treated with a variety of filtration and purification methods.Coliform bacteria are a commonly used bacterial indicator of water pollution, although not an actual cause of disease. Other microorganisms sometimes found in surface waters which have caused human health problems include: Burkholderia pseudomallei Cryptosporidium parvum Giardia lamblia Salmonella Novovirus and other viruses Parasitic worms (helminths).[12][13] High levels of pathogens may result from inadequately treated sewage dischargesChemical and other contaminants Muddy river polluted by sediment. Photo courtesy of United States Geological Survey. Contaminants may include organic and inorganic substances. Organic water pollutants include: Detergents Disinfection by-products found in chemically disinfected drinking water, such as chloroform Food processing waste, which can include oxygen-demanding substances, fats and grease Insecticides and herbicides, a huge range of organohalides and other chemical compounds ]
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Expert answered|selymi|Points 7882|
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Asked 4/12/2012 7:30:50 AM
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