Реферат по предмету "Иностранный язык"


Air Pollution Needs To Be Stopped Essay

, Research Paper

Factory and business owners have the ability to prevent air pollution. The government should take action, requiring equipment to cut down on hydrocarbons in the atmosphere. The little spent regulating equipment used in factories can go a long way saving billions on health problems and other related issues.

Background

Over 150 million people in the United States live in areas where the Environmental Protection Agency considers the air to be unhealthy. Air pollution is the presence in the atmosphere of harmful gases, liquids, or solids. Smog has been a problem in coal-burning areas for several centuries. Smog finally decreased when coal combustion was replaced by oil and gas combustion.

Air pollution is caused by a number of different types of pollutants. The first type, particulate matter, consists of solid and liquid aerosols suspended in the atmosphere. These arise from the burning of coal and from industrial processes. It hastens the erosion of building materials and the corrosion of metals, interferes with the human respiratory system, and brings toxic materials into the body. The small particles cause chronic bronchitis, bronchial asthma, emphysema and lung cancer.

The second type is sulfur oxides, which come from the burning of coal and industrial processes. Damage to materials, to vegetation, and to the human respiratory system are caused by the acid nature of oxides.

The third type of pollutant is carbon monoxide. Carbon monoxide is a colorless, odorless, tasteless gas against which humans have no protection. Hemoglobin, which is in the blood, combines with carbon monoxide and carries less oxygen to body tissues causing health and heart effects. Some health problems come from the exhaust fumes leaking into the interior of the automobile. Several hundred Americans die from CO poisoning each year.

The fourth type is hydrocarbons, which are chemical, compounds containing only carbon and hydrogen. Hydrocarbons also arise from gasoline-powered vehicles and from industrial processes. Hydrocarbons are released when fuel in the engine burns partially. When hydrocarbons come in contact with sunlight they form ground level ozone. Ground level ozone is a major ingredient in the formation of smog. Ground level ozone is responsible for irritating eyes, damaging lungs, and it complicating respiratory problems.

The last type is nitrogen oxides that come from high-temperature combustion, such as that occurring in motor vehicle engines, electric power plants and other fuel usage. Nitrogen oxide contributes to acidity in precipitation and production of photochemical smog. Nitrogen oxide is also dangerous it causes serious illness and deaths even if the exposure to NO2 is short.

Action Requested

The government should take action passing a restriction on equipment within factories and businesses. The inspection should consist of requiring four different conditions or devices: a flare burner, an ionizing radiation, crosscurrents contacting of the waste gas stream with an acceptor, and change all combustion to natural gas combustion. Like most laws, if one device or condition is not present then the company should be fined a large sum of money. In order for the company to continue staying open the missing devices or conditions should be present within the following two weeks.

Many restrictions are made for businesses and factories, but what is more important than the health of our people. Action should be taken right away. Important advantages to passing extra restrictions on factories and businesses are involved within this action. Not only will the factories realize how much pollution they have caused without these conditions, but also they will prevent hurting the health of others. Each of these devices are exactly what we need in order to stop air pollution. Save the children of tomorrow and the environment of today by doing something to prevent air pollution.

Conclusion

Global warming is a big threat to our nation and the world. If we do not act now, it may be too late. Of course, there is no sure way of conducting a solution to satisfy all our needs and ensure a clean atmosphere, but let’s not take any chances. Look at what is happening to this world, and you will notice that there is a pollution problem. The earth is getting hotter, people are getting sick. There should be steps taken to reduce the gases put into the air. Regulating equipment may not seem like a lot, but it is a small price to pay to ensure a safe and toxin free world.




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