how does water pollution affect the aquatic life?
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Organic matter and nutrients causes an increase in aerobic algae and depletes oxygen from the water column. This causes the suffocation of fish and other aquatic organisms. Sulfate particles from acid rain can cause harm the health of marine life in the rivers and lakes it contaminates, and can result in mortality.
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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 harms fish populations in various ways. When nutrients wash into waterways through storm runoff, they deplete oxygen in the water that fish need to survive. ... Pesticides and heavy metals that enter waterways can also harm or kill fish.
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Economic Losses Resulting from the Impact of Water Pollution on Human Health. Water pollution may affect people indirectly through the aquatic food chain and through the use of waste water for crop irrigation. ... Waste water irrigation pollutes and damages both the agricultural environment and human health.
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Water temperature, water depth, and nutrients are some abiotic factors that affect organisms in freshwater ecosystems.
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Water pollution makes river biodiversity more vulnerable to climate warming. ... The breakdown of organic pollutants such as sewage and farm run-off uses oxygen, meaning that polluted waterways often suffer severe drops in dissolved oxygen levels.
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Factories are also a major contributing factor to water pollution across the globe. The illegal dumping of contaminated water, gases, chemicals, heavy metals or radioactive materials into major waterways causes damage to marine life and the environment as a whole.
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Human impacts on marine ecosystems. Human activities affect marine ecosystems as a result of pollution, overfishing, the introduction of invasive species,and acidification, which all impact on the marine food web and may lead to largely unknown consequences for the biodiversity and survival of marine life forms.
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Microbial pollutants from sewage often result in infectious diseases that infect aquatic life and terrestrial life through drinking water. Microbial water pollution is a major problem in the developing world, with diseases such as cholera and typhoid fever being the primary cause of infant mortality.
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Water Pollution. Water pollution has been one of the main impacts that the tourism industry has on environment. ... The tourism industry has also impacted the water quality through its abuse to meet the increased demand of food, construction and maintenance of tourist infrastructure.
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Common effects include decreased water quality, increased pollution and greenhouse gas emissions, depletion of natural resources and contribution to global climate change. Some of these are the direct result of human activities, whereas others are secondary effects that are part of a series of actions and reactions.
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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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The specific effects vary depending on what pollutants enter the environment. Sometimes, water pollution causes an explosion of new plant growth by providing necessary nutrients and food. Other times, it can harm or kill plants by changing growing conditions, such as by raising or lowering the environment's acidity.
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Nutrient pollution has impacted many streams, rivers, lakes, bays and coastal waters for the past several decades, resulting in serious environmental and human health issues, and impacting the economy. Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle.
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Sewage runoff can cause microbial contamination of water, which wildlife drink or live in. ... Nutrient pollution can cause dead zones. These are areas in water where there is little or no oxygen, creating spots where aquatic life can't survive. Algal blooms can create toxins that kill fish and other animals.
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Environmental impact of oil Oil pollution can have a devastating effect on the water environment, it spreads over the surface in a thin layer that stops oxygen getting to the plants and animals that live in the water. Oil pollution: harms animals and insects. prevents photosynthesis in plants.
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Bacterial, viral and parasitic diseases like typhoid, cholera, encephalitis, poliomyelitis, hepatitis, skin infection and gastrointestinal are spreading through polluted water. It is recommended to examine the water quality on regular basis to avoid its destructive effects on human health.