how does water pollution cause diseases?
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Infectious diseases can be spread through contaminated water. Some of these water-borne diseases are Typhoid, Cholera, Paratyphoid Fever, Dysentery, Jaundice, Amoebiasis and Malaria. Chemicals in the water also have negative effects on our health.
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Water of poor quality can cause disease outbreaks and it can contribute to background rates of disease manifesting themselves on different time scales. Initiatives to manage the safety of water do not only support public health, but often promote socioeconomic development and well-being as well.
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Sanitation officials and water manufacturers add chemicals to drinking water that comes from the tap or bottles to kill any bacteria and parasites that can naturally occur in water. Examples of these include salmonella, E. Coli, and Giardia. These pathogens can cause stomach upset, diarrhea, and vomiting.
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Waterborne organisms (Cryptosporidium, Giardia and E. coli) can cause symptoms such as nausea, vomiting and diarrhea. Spring water could also contain chemicals that can cause long-term health effects, such as kidney and liver damage, nervous system disorders and birth defects.
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What does water pollution most directly cause? ... It can pollute the air. It can pollute wells. It can increase climate change.
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Water pollution causes water to be unsafe for people to consume and use. ... Local businesses would be affected because if they use the polluted water it could contaminate their product, especially in the agriculture and fishing industries. This could be very costly because it would set them back in production.
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Water pollution occurs when harmful substances—often chemicals or microorganisms—contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
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The lack of care on surface water affects all oceans, rivers, and lakes directly, where pollution like agricultural chemicals affect ground water, which eventually makes it to the sea. Causes of pollution include oil (35% from city runoff), agriculture pesticides and fertilizer runoff, garbage misplacement, and mining.
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Pollution may muddy landscapes, poison soils and waterways, or kill plants and animals. ... Long-term exposure to air pollution, for example, can lead to chronic respiratory disease, lung cancer and other diseases. Toxic chemicals that accumulate in top predators can make some species unsafe to eat.
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Acid Rain Can Cause Health Problems in People Air pollution like sulfur dioxide and nitrogen oxides can cause respiratory diseases, or can make these diseases worse. Respiratory diseases like asthma or chronic bronchitis make it hard for people to breathe.
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Impacts on people and the environment Pollution: Floods will wash chemicals and sewage into the water. The contaminated water will spread quickly over an area – causing public health issues and killing fish. Property: As flood waters rise they can flow into low-lying properties.
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The causes of freshwater pollution are varied and include industrial wastes, sewage, runoff from farmland, cities, and factory effluents, and the build-up of sediment. Emissions from factories and vehicles are released into the air.
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On human health To put it bluntly: Water pollution kills. ... Diseases spread by unsafe water include cholera, giardia, and typhoid. Even in wealthy nations, accidental or illegal releases from sewage treatment facilities, as well as runoff from farms and urban areas, contribute harmful pathogens to waterways.
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Globally, at least 2 billion people use a drinking water source contaminated with faeces. Contaminated water can transmit diseases such diarrhoea, cholera, dysentery, typhoid, and polio. Contaminated drinking water is estimated to cause 485 000 diarrhoeal deaths each year.
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Extensive irrigation of polluted water can not only leach down the soil but also has a negative effect on ground water quality [4]. ... When toxins are in the water, the toxins travel from the water the animals drink to humans when the animals' meat is eaten so the pollutants enter the food chain.
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Clean drinking water, hygiene, and sanitation play an important part in maintaining health. Contaminated water causes many water-borne infections like diarrhoea, and also serves as a carrier for vectors such as mosquitoes spreading epidemics. ... It results in control of enteric diseases, and boosts child health.
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When polluted groundwater reaches drinking water systems it can pose serious public health threats. Nutrient pollution can affect vital ground water and drinking water sources. Surface waters, like lakes, rivers and streams, provide drinking water for about 170 million people in the United States.