Water pollution and the environment final

Water pollution and the environment final - Water Pollution...

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Water Pollution and The Environment 1 Water Pollution and the Environment Jill Burch Com/150 Instructor : Denise Axtell December 5, 2010
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Water Pollution and The Environment 2 Water constitutes 70 % of the earth surface. Water is one of the most precious resources. Without water nothing on earth would grow, yet some take this resource for granted by polluting the rivers, ocean, and lakes. Everyone should be aware of the problem and fix it before it is too late. Water pollution can be defined as contaminants introduced to an environment that causes instability, disorder, harm, or discomfort to the ecosystem (Wikipedia free encyclopedia). Nutrients like nitrates and phosphates in fertilizers and sewage are a large contributor to water pollution. These nutrients over- stimulate the growth of the plants and algae in streams and lakes. This over growth can clog the waterways; block light to deep water, affects fish respiration, and dissolves oxygen. Pollution from feedlots and pasture run off into our streams and lakes. This causes many of the fish that live in deeper water fail to survive. This occurs when these nutrients breakdown, it depletes the water of oxygen and fish cannot survive with a drop in oxygen levels. Another form of pollution that can be harmful is pathogens.
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Water Pollution and The Environment 3 Pathogens are bacteria, viruses, or protozoan. These can cause many illnesses. These can enter the water through sewage, storm drains, and septic tanks or run off from farm or feed lots. The major sources of water pollution are municipal waste from homes and commercial establishments. Industrial can be different from industry to industry, but their pollutants cause significant amounts of water pollution. The next would be agricultural. Livestock and farming pollutes the surface water by their run off that saturates into the ground. The surface water is a large percentage of our fresh water. The non-living factors that are affected by water pollution are solar gradient (sunlight), atmospheric gases (methane, co2, sulfur dioxide). The living factors are animals, humans, plants, trees, insects, and bacteria. Because water is an essential factor to all living organisms on earth to survive, adding toxins to it causes health problems and problems for the environment also. If the water is contaminated with a pollutant, and evaporates into the air, this causes atmospheric gases. If a human or an animal drinks
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Water Pollution and The Environment 4 polluted water, those contaminants can cause health issues such as bacterial, viral, and protozoan infections. Water born diseases are typhoid cholera, paratyphoid fever, and bacillary dysentery. Some viral infections are infectious hepatitis, or poliomyelitis.
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This note was uploaded on 03/31/2011 for the course ECON 205 taught by Professor Hn5115 during the Winter '10 term at University of Phoenix.

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Water pollution and the environment final - Water Pollution...

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