Pollution

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  • Publicado : 4 de noviembre de 2010
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POLLUTION |
What is it? What can we do to stop with it? |
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Here we will talk about a big problem, P O L L U T I O N. Pollution is a big problem that is affecting our life, but we’re causing it. We must think about the consequences, but unfortunately we are so inconsients about it, we don’t have the enough information to think about and do something to the respect. Here is the informationto take conscience. We’ll talk about: the origin of the pollution, what is pollution, kinds of pollution, how does it affect our health, the pollutants in our body, etc. GIVE A HAND TO OUR WORLD! ♥ |
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Fatima Gabriela Aguila Hermosillo |
23/09/2010 |
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POLLUTION
Pollution is contamination by a chemical or other agent that renders part of the environment unfit for intended or desireduse. These uses also and very importantly include all wildlife and ecological requirements to sustain life in all its natural forms.
Pollution damages the Earth's land, water and air. It results in contamination of the earth's environment with materials that interfere with human health, the quality of life, and the natural functioning of ecosystems (living organisms and their physicalsurroundings).
Pollution is usually caused by human actions, but can also be the consequence of natural disasters. Pollution can also occur from disruption or damage to wastewater collection and treatment infrastructure due to severe natural events like hurricanes or flooding. Most types of pollution affect the immediate area surrounding the source, and reduce as you move away from the source.
Pollution isthe addition to the ecosystem of something which has a detrimental effect on it. One of the most important causes of pollution is the high rate of energy usage by modern, growing populations.
Different kinds of pollution are found:
1. Air Pollution.
2. Water Pollution.
3. Land Pollution.
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Air Pollution
Air pollution is theaccumulation in the atmosphere of substances that, in sufficient concentrations, endanger human health or produce other measured effects on living matter and other materials. Among the major sources of pollution are power and heat generation, the burning of solid wastes, industrial processes, and, especially, transportation. The six major types of pollutants are carbon monoxide, hydrocarbons, nitrogenoxides, particulates, sulfur dioxide, and photochemical oxidants.
Examples of Air Pollution
* Noise Pollution
Noise pollution or unwanted sounds that are carried by the air have an irritating and detrimental effect on humans and other animals. Careful planning of streets and buildings in towns and better control over noisy vehicles may add to the control of noise pollution.
* TobaccoSmoke
Tobacco smoke is one of the major forms of pollution in buildings. It is not only the smoker who is infected, but everyone who inhales the polluted air. There is a very strong connection between smoking and lung cancer. Bronchitis is common among smokers and unborn babies of mothers who smoke also suffer from the harmful effects of smoking.
* Exhaust Gases of Vehicles
Pollution fromexhaust gases of vehicles is responsible for 60% of all air pollution and in cities up to 80%. There is a large variety of harmful chemicals present in these gases, with lead being one of the most dangerous.
* Combustion of Coal
The combustion of coal without special precautions can have serious consequences. If winds do not blow away the poisonous gases, they can have fatal effects and maylead to death.
* Acid rain
Acid rain is the term for pollution caused when sulfur and nitrogen dioxides combine with atmospheric moisture to produce highly acidic rain, snow, hail, or fog. The acid eats into the stone, brick and metal articles and pollutes water sources. Coal in South Africa is rich in sulphur and the power stations in the Mpumalanga Province could be responsible for acid...
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