Water pollution - Water Pollution 1 Water Pollution Lindsey...

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Water Pollution 1 Water Pollution Lindsey Jean Axia College of University of Phoenix
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Water Pollution 2 Water pollution is the contamination of water bodies like lakes, rivers, oceans, and groundwater caused by human activities, which can be harmful to organisms and plants that live in these types of water bodies. There are several ways to pollute water, whether it is people dumping their garbage in the water or on the sand near bodies of water or whether it is from oil spillage. Improper disposal practices have a direct effect on public health. Water resources have become inadequate in the city, partly because of the increase in water demand and poor environmental management as well as inappropriate sanitation practices. In the last few years the areas around dump sites have become very populated: the dumps are also located close to important water bodies. Water pollutants are categorized as: sewage, disease-causing agents, sediment pollution, inorganic plant and algal nutrients, organic compounds, inorganic chemicals, radioactive substances, and thermal pollution. Sewage is one type of pollution that comes from wastewater drains or sewers. Examples of sewage are human wastes, soaps, and detergents . Some effects of sewage are that it threatens public health; causes enrichment and high biochemical oxygen demand (BOD). Disease causing agents is another type of pollution that comes from wastes of infected individuals. Some examples of disease causing agents are bacteria, viruses, protozoa, and parasitic worms. Some effects of disease causing agents include the spread of infectious diseases (cholera, dysentery, typhoid, infectious hepatitis, and poliomyelitis). Another type of pollution is thermal pollution. Thermal pollution is caused by industrial runoff. Heated water produced during industrial processes, then released into waterways is an example of thermal pollution. One of the major effects of thermal pollution is that it depletes the water of oxygen and reduces the amount of oxygen that the water can hold; reduced oxygen threatens fish.
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Water Pollution 3 The current condition of our world’s aquatic environment necessitates an effective sustainability plan. Too many fish are being caught, or are dying due to pollution, leaving the species unable to replenish their population, and if continued, there will also be an insufficient quantity of fish to support the economical and nutritional needs of humans. Another example of the harms of over fishing lies with the trigger and puffer fish. The over harvesting of triggerfish and puffer fish for souvenirs on coral reefs in the Caribbean has sapped the health of the entire reef chain. As these fish declined, populations of their prey exploded, damaging the coral by grazing on the protective layers of algae and hurting the local reef-diving industry. Dams have one of the most important roles in utilizing
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This note was uploaded on 03/14/2010 for the course SCI 241 taught by Professor Williams during the Spring '10 term at University of Phoenix.

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Water pollution - Water Pollution 1 Water Pollution Lindsey...

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