Tuesday, May 26, 2020
The New Fuss About General College Essay Samples
The New Fuss About General College Essay Samples Your solution shouldn't be a book report. Before you write your essay or participate in a college interview, you'd be prudent to determine your own response to the question. Because the essay is a little too dry at this time, some extra voice would really provide the essay a boost. To discover what should be finished, you ought to take a look at an excellent deal of other essay examples. The type of essay you're looking for will be provided to you within the deadline provided to you. Sit down, consider the story that you want to write. The ideal thing about us is that each time you can buy original essay papers for sale. Custom writing means a critical company with high standards. Show how you fit in the campus culture and how you are going to affect the community through specific examples. Stephen connects his previous experience to his present-day maturity through self-knowledge. Colleges want a feeling of maturity and introspectionpinpoint the transformation and demonstrate your private growth. If you would like to create a college essay which works, you will need to provide importance on the content you will offer the admissions officer of your intended university with. Just because you've already written a college essay for a single university doe sn't mean that it may also apply on your next applications. Developing a good college essay may lose its purpose in the event the content of what you've written is not what the university is asking for. Writing the college application essay can be among the most daunting elements of applying to college. The essay for Florida state university isn't required, but it's highly suggested. Colleges are more inclined to admit students who can articulate certain explanations for why the school is an excellent fit about them beyond its reputation or ranking on any list. In addition to its growing cultural and ethnic diversity, State University is turning into a master at developing a niche for every single student. Thus, it is not just the perfect place for me, it is the only place for me. The Hidden Facts on General College Essay Samples One of the most difficult features of college life is finances. So should you need to employ college essay writer online, we're just the people that you will need to contact. Picking a career path is just one of the most daunting decisions you will make in your whole life. You've so many options here that you may discover the essay prompt daunting. You are going to receive unique texts, which will be finished in time. Essays are an essential compo nent in the college application procedure. Our writers always create unique content that's absolutely free from all grammatical error. While it's true that there are a few excellent writers in college some find it extremely challenging to write. There's great news and bad news in regards to college essays. You may easily buy unique college essays and don't neglect to tell friends and family about it. Now you can get genuine college essay online, one that is going to fit your financial plan and get your work done also. General College Essay Samples - Is it a Scam? Because you are interested in getting the essay to communicate the ideal information about you, you should do thorough preparation for the sample college admission essays to accomplish its purposes. All you have to do is specify if you want your essay to be delivered. Your college essay should contain information that are related to the instruction offered to you. Writing your own personal essay for admission in to college can be very tough. Scholarship Essay Examples are supplied for insight on how best to write a scholarship essay. Following your nomination, you're required to forward an essay. Stephen's essay is quite effective. Writing a college admission essay can be quite tough. Choosing General College Essay Samples Thus, the essay is supposed to coincide with the applicant's qualities and interests in order for it to boost the probabilities of admission. It's very useful to take writing apart so as to see just the way that it accomplishes its objectives. In the majority of instances, the prompt is quite elaborate and open to interpretation. Therefore, if you're comfortable sharing personal particulars about your life that will assist an admissions.
Friday, May 15, 2020
Political And Social Criticism In 1984 - Free Essay Example
Sample details Pages: 8 Words: 2398 Downloads: 2 Date added: 2019/04/10 Category Literature Essay Level High school Tags: 1984 Essay Did you like this example? There must be something in books, something we cant imagine, to make a woman stay in a burning house; there must be something there. According to Ray Bradbury, You dont stay for nothing. It is curious to think that a single work of art, a single poem, and a single book can radically change the minds of the populace as a whole and yet it has been a recurring theme throughout history. Donââ¬â¢t waste time! Our writers will create an original "Political And Social Criticism In 1984" essay for you Create order As a major source of political and social criticism, books have been implemented in criticism of political machines, social injuctices, the greedy and selfish side of human nature that works toward assuming total control. As sometimes a blunt and rude awakening, dystopian novels illustrate, often in exaggerated ways, a fictional reality that disturbingly mimics what has occurred or is occurring in reality and has the potential to prophesied the emergence many different types of societies along with the conflicts between the people and the government. One dystopian writer who was influenced to write a novel criticising the totalitarian regimes of his time, such as Natzi Germani under Hitler and the Soviet Union under Stalin, was the left-wing writer George Orwell. In one of his lesser praised books,1984, argued by critics as being a very underdeveloped story lacking interesting plot points and containing a harshly pessimistic outlook on Londons society, George Orwell warns that a similar society to the socially oppressive, totalitarian society of Oceania could arise if social oppression in the forms of degradation of the self, political greed and extreme patriotism and oppression of the working class through enhancements in technology and erasure of the past continue in his current society. Orwell is well recognized for his inclusion of political and social criticism within his novels and essays. He used real world politics to be able to effectively depict and prophesize human greed for power and need to control people in totality through unquestioning loyalty. The critic Morris Dickstein comments that: Orwells appeal to posterity brings to mind poems like Whitmans Crossing Brooklyn Ferry or Brechts An die Nachgeborenen (To Posterity), which begins, Truly, I live in the dark ages, and ends with an appeal for understanding: Think back on us / With kindness. Winston scribbles in his diary, as Orwell writes the novel, for the future, for the unborn, though he wonders if such communication is really possible, especially under a system that claims it can wipe out any trace of him. (105). It is interesting to note that Orwell, with his lifetime numbered with a severe illness that took hold around the time of his writing 1984, rushed to get his message out to his future audience, in an effort to provide critical insight about political idealisms, such as communism and totalitarianism(Dickstein). Similarly, although he does not know how his message will be sent or received, Winston seems to want to relay a message for the future generation as a warning sign to be cautious with the seemingly desolate direction of total control that is Oceania. His desire is to make sure that his truth is spoken so that the future generation may know and understand the horrible conditions Winston lived in and aspire to change the negligent and oppressive lifestyle the government is forcing their own people to lead. Moreover Dickstein comments that Nineteen Eighty-Four has several minor characters who also serve as emblems of Orwells argument, including Syme, the ideological zealot, and Pa rsons, the slovenly, stupid true believer who is turned in by his own children(104). The unbridled patriotism that the people of Oceania exude, unsurprisingly, backfires when extreme amounts of surveillance come into play. The patriots ignorance and the belief that unquestioning loyalty has the ability to protect the self from perceived unlawfulness are products of the governments want to assume control. Not only is this exaggerated form of patriotism needlessly present in the adults it is also disproportionately apparent in the younger generation because the propaganda in favor of the government was all the children ever even knew. The adults may have grown up in a time where Oceania had not formed yet and so may be less influenced by the propaganda but because the children were born when this government was fully fledged, they are able to be molded in such a way that makes them turn against their own kin for the benefit of the government. As illustrated by the main character Winston, the two minutes Hate was a prime example of this extreme form of patriotism in whi ch: The most horrible thing about the Two Minutes Hate was not that one was obliged to act a part, but it was impossible to avoid joining inA hideous ecstasy of fear and vindictiveness, a desire to kill, to torture, to smash faces in with a sledge hammer seemed to flow through the whole group of people like an electric current, turning one even against ones own will into a grimacing, screaming lunatichis secret loathing of Big Brother changed into adoration, and big brother seemed to tower up, an invincible, fearless protector, standing like a rock against the hordes of Asia, and Goldstein, in spite of his isolation(Orwell 15). In his dystopian world, technology,specifically the telescreen, is used as a method for surveilling the populace to keep the people in a state of terror for their livelihood, specifically the telescreen, which is able to receive and transmit any sounds above a whisper to the thought police. This essentially gives rise to the effect of people believing that their every actions and thoughts can and will be heard and if anything goes against the belief system that the Party offers, the consequences are severe, in the form of torture and death. As an effect this causes the to be docile and unquestioning complacency of the populace. As the critic John David Frodsham pointed out how the system of surveillance to beget loyalty in 1984 mimics reality. As one observer commented, as late as 1975: China is an immense bar racks living in a permanent state of terror and fear. The Maoist way of life is based on surveillance of the citizenry. Several houses make up a cell whose members are required to report their thoughts and actions to each other. . . The individual has no right to personal life. . . where he goes, what he talks about, what he eats, what he reads, what he listens to on the radio, all this is immediately learned by those around him and reported to the neighborhood revolutionary committee !Thanks to the bao-jia (mutual surveillance) system, Maos China did not need the telescreen. Thought-control had been achieved without elaborate technology (144). With effectively little to no privacy, the government of Oceania, as well as China in the Maoist way of life, have efficiently stripped the populace of their identities and amassed control through surveillance (Frodsham). Likewise the fear factor in 1984 of being reported by someone or overheard by the Thought Police allows Oceanas government to effectively assume control. To the people of Oceania the thought of being taken away to never be seen or heard of again and to have their entire life uprooted has effectively made the masses complacent and docile enough to not utter a single word against the government and to foolishly believe the propaganda that is being spread to further elicit complacency. Frodsham continues to explain that For Orwell, Nature was essentially good and technology essentially evil. Technology in 1984 is used to enslave men, not liberate them(142). It is interesting to note that many technologies are in current use that help the government surveil and keep their people in line so utter chaos does not ensue. However, the extent of which the novel uses technologies such as the speakwrite and telescreen as a form of control is quite literally frightening as one misspoken word or action could get one killed. The extreme misuse technology in the novel is, quite literally, evil in the sense that, technology is innovative and meant to help one live a more comfortable life, but is rather used to constrain people into a very limited form of living where fear prevails and peace of mind does not. In the novel, OBrien explains that:The Party seeks power entirely for its own sake. We are not interested in the good of others; we are interested solely in power. Not wealth or luxury or long life or happiness: only power, pure power. (1984, 175). The power that OBrien is illustrating is in and of itself desolate. It is a power that provides for no security or peace of mind for the people as a whole but rather illustrates the burning desire of the few who are in power to gain more and more power, of course without second thought of the consequences and without second thought for the wellbeing of the people. The greed that is illustrated in O Briens explanation as claimed by critic H. Mark Roelofs, stems from the knowledge that, power of this order cannot be possessed by a single individual except in and for the perpetuation of myth, to wit, the myth of Big Brother. In fact, toted power can be possessed only by a class, or a party representing a class(23). In essence, having power of that extent possibly be held in the hands of one individual. However brainwashing the population into believing that there exists someone in the right who is all seeing and all controlling, Big Brother, and symbolically having someone who is trying to overthrow this myth of Big Brother who is in the wrong, as demonstrated by the enemy of Oceania, Emmanuel Goldstein, essentially makes the people ideologically complacent to the control of Oceanias Party. As further explained by the critic Roelofs, In consequence, their power could be taken to the ultimate pitch total power is more like an absolute perversion of love(23). As a result of the Partys lust for power and greed combined with an overall lack of concern over the well being of the population as a whole, people like Obrien, who find those going against the societal norms to completely and utterly destroy the thi nking, conscious and rational mind, essentially the self, allow for a almost mindless and unquestioning loyalty to the Party to be instigated. Furthermore, in the novel Obrien exclaims If you want a picture of the future, imagine a boot stamping on a human face forever (178). Essentially, the Party has created a government without freedom, a grim reality that is substantially hopeless for the populace. There seems to be an overall lack of compassion, gratitude, and true criticism of the power hungry government that stems from rational thought based on the idea that government is meant to protect the wellbeing of the people. Roelofs claims that, It must always be noted that party members love (i.e., merge themselves with) the Party, and that the populace and Winston Smith in particular- must love Big Brother (23). Because the people have been conditioned to such an extent to believe that they must love Big Brother, they know only how to believe the lies the government is feeding them with a spoon and lack the ability to criticise and provide for intelligent debate that may help improve the well being of the people. Likewise the extreme forms of surveillance make this task quite difficult since so few are willing to stand up for better humane treatment at the expense of their lives. The self is a concept that is constantly being sought after, along with individuality and uniqueness. However, due to the inhumanity and cruelty illustrated throughout the book, the self along with individuality is not something that is considered or even widely sought after. According to the critic Irving Howe, Orwell is trying to present the kind of world in which individuality has become obsolete and personality a crime..and Orwell has imagined a world in which the self, whatever subterranean existence it manages to eke out, is no longer a significant value, not even a value to be violated (195). The very idea of having an identity, within the dystopian society that orwell has created, is seen as being blasphemous. The people are often depicted as robots, doing what the masses do, never stepping out of line for fear of severe judgement, and never once thinking or speaking their minds because they have been conditioned to not think. Therefore because the people are so far gone under the control of the government , none can ever have an original opinion or thought, none can critique, and none can ever be able to contemplate what it is to be human, to have an identity and a sense of self. The horrifying illustration of the older generation not being able to teach the younger generation how to think analytically and always question and have intelligent conversations comes into play through the portrayal of mindlessness throughout the novel. 1984 demonstrates the horrific society in which politics has overridden a persons ability to express themselves freely without fear of reprimands along with society and how it functions as a whole and Howe describes the novel as a profoundly anti-political book, full of hatred for the kind of world in which public claims destroy the possibilities for privacy (196). It should be noted that Orwells intention of the messages in the book are not anti-political in nature but are rather anti- totalitarian in which the entire state is required to have total subservience to a centralized and dictatorial authority. This is shown illustrated to the many instances of a lack of privacy and surveillance taken to extreme levels to garner complete and utter conformity of the people the government serves along with the utter lack of care of the government towards the people they are meant to serve and protect. To further demonstrate the illusion of good living conditions and security, the government has workers such as the main character, Winston, erasing and rewriting history and facts to prevent truth from reaching the public and to spread lies. As illuminated by R. B Reeves: inhabitants of this world (of crowded apartment houses that reek of boiled cabbage, of foul smelling Victory Gin, of Victory Cigarettes that fall apart) cannot know how truly bleak their lives are since they have no means of comparison. All knowledge of the past has been altered; so there is no way of discovering whether life had been better previously(14).
Wednesday, May 6, 2020
Essay Critique of a Nursing Theory - 1746 Words
Critique of a Nursing Theory April 30, 2010 Critique of a Nursing Theory This is a critique of Myra Estrin Levineââ¬â¢s conservation principles model. I will be discussing the meaning of the theory of the four principles; conservation of energy, conservation of structural integrity, conservation of personal integrity, and conservation of social integrity. I will be using the criterion-based model (C-BaC) as a focus of the positive aspects of the theory, as outlined by Johnson Webber (Johnson Webber, 2010, p. 192-214). I will discuss the intent and theory, the concepts and propositions, and the usefulness in nursing practice. How a nurse is defined could be very influential for those who aspire to become a nurse, and even forâ⬠¦show more contentâ⬠¦Although I do not define optimal patient health as Levine would, I do believe that the boundaries of todayââ¬â¢s health disciplines and Levineââ¬â¢s theory ultimately have the same patient goal; patient wholeness. The meaning of Levineââ¬â¢s conservation theory i s defined differently in all the secondary sources used. There are no words used that are misunderstood. I would not constitute any of the definitions read as jargon, slang or unnecessary and meaningless writing. The primary source, Levineââ¬â¢s definition of ââ¬Å"Conservation of Social Integrity is to recognize the individual as one who strives for recognition, respect, self awareness, selfhood and self determinationâ⬠(Nursing Theories: A Companion to Nursing Theories and Models, 2010). Selfhood is one word that I am not familiar with and had to look up for confirmation of meaning. The meaning of selfhood is integrity; strive for selfhood would be to strive for individuality or for your own true identity. Concepts and Propositions Levineââ¬â¢s theories share four major concepts; person, environment, health, and nursing. A concept of person is one who is being holistic and striving to accomplish complete integrity, ââ¬Å"someone who is future-oriented and past-awareâ⬠(ââ¬Å"Myra Levineââ¬â¢s Conservation Theoryââ¬Å", 2009). Each individual has an internal and external environment that completes their wholeness. TheShow MoreRelatedSummary and Critique of The Timelessness of Nursing Theory1302 Words à |à 5 PagesAnnotated Bibliography of Two Nursing Articles Summary and critique of The timelessness of nursing theory by Sandra Schmidt Bunkers. This article by Bunkers examines the ways in which nursing theory as articulated by Florence Nightingale and supported by Rosemarie Parses theoretical modeling can be understood as being timeless and to what extent it should be considered as rooted in a particular historical moment and cultural context. 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Hendersonââ¬â¢s Nursing Theory Critique Gaylinn Breeze Maryville University Abstract This paper aims to provide an in depth critique of Hendersonââ¬â¢s Nursing Theory using Fawcettââ¬â¢s framework for analysis and evaluation of nursing models. This paper will provide an analysis of the theory based on its scope, context and content. Secondly, the paper will provide an evaluation to unearth its significance, internal consistency, testability, as well as provide empirical and pragmaticRead MoreCritique of Jean Watsons Theory1312 Words à |à 6 PagesTheory Critique of the Human Caring Theory Adele Wolf Maryville University NUR 600 October 03, 2012 Theory Critique of the Human Caring Theory The Theory of Human Caring was written by Jean Watson. This model consists of ten carative factors to assist nurses with caring for their patients. Dr. Watson calls this a transpersonal relationship. Watson defines transpersonal care ââ¬Ëas the capacity of one human being to receive another human beingââ¬â¢s expression of feelings and to experience thoseRead MoreNur518 R7 Quantitative Article Analysis Worksheet Nc Essay1065 Words à |à 5 Pagesï » ¿University of Phoenix Material Quantitative Article Analysis Worksheet Analyze and critique a quantitative nursing research article from a nursing research journal published within the past five years. Include 3 scholarly referencesââ¬âthe article, the text, and one outside source. Use the Guidelines for Quantitative Nursing Research Critique to complete the following steps: 1. State the purpose of the study and identify the problem. Patients in the intensive care unit (ICU) often require enteralRead MoreTheory into Practice Plan, Implementation, Evaluation Essay958 Words à |à 4 PagesTheory into Practice Plan, Implementation, Evaluation The purpose of this paper is to provide an introduction, purpose, and rational for selecting a nursing theory. I will describe the theory by identifying the purpose, concepts/definitions, relationships/structure, and assumptions. I will use the Chinn Kramer evaluation criteria to critique this chosen theory. Finally I will describe a plan for implementing the theory into my practice setting, identifying any barriers and challenges. IntroductionRead MoreThe Application Of Transcultural Nursing Theory1253 Words à |à 6 PagesThe application of transcultural nursing theory guides nurses to care for patients with different cultures. However, nursing scholars are beginning to explore that cultural education in nursing is not discussing the power relations found between the nurse-patient relationship and health care institutions. It has been suggested that nursing curricula needs to change from teaching cultural phenomena and incorporating critical theory to address social injustices that harm the clientââ¬â¢s health. The purposeRead MoreEssay on Research Critique Part 1659 Words à |à 3 Pages Research Critique Part 1 Grand Canyon University Introduction to Nursing Research NRS-433V Mary OConnell September 5, 2013 Research Critique Part 1 This paper will critique a qualitative research study published in the Journal of Medical Ethics in 2004, By Dr Helen Aveyard, about how nurses manage patients who refuse nursing care procedures. The article explains how nurses view informed consent as not being essential to nursing care procedures. Problem Statement The clinical problem
Tuesday, May 5, 2020
Air polution Essay Example For Students
Air polution Essay Air pollution is nothing new. Ever since the discovery of fire, less-than-desirable substances have been vented into the air. One of the first air-pollution regulations dates back to the fourteenth century, when King Edward I banned the burning of sea coal in lime kilns. U.S. air-pollution regulations have their roots in British Common Law. But regardless of those efforts, air pollution continues to be a serious local and world-wide problem. Pollution is the pressure within the air of one or more substances that are harmful to human health, welfare, animal or plant life, or property. In the past with air pollution we included mainly the outdoor pollutants, although in recent years this is not the case. Today we separate pollutants in to two categories. Primary pollutants, because they come directly from various sources, and secondary which are by-products of chemical interactions of the primary pollutants within the atmosphere. Although air pollution might be thought of as unwanted g ases in the atmosphere, two of five primary pollutants are really solid substances called particulates. Soot has always been a sure indicator of a polluted atmosphere, but other than soiling and a negative psychological effect, soot cant settle into the lungs and cause serious diseases. Thick ,black smoke coming out of a stack is that what we think causes the pollution, but what really creates the damage is what we cant see. Particles like this are called suspended particles. They come from many incomplete burning and can consist a variety of substances. The most harmful type of particulate is so small that that it is microscopic. All the particulates are harmful for several reasons. When inhaled, they can damage the interior of the lung; they can also be poisonous. Sometimes gases will glue to their surfaces and in a process called adsorption they can reach the lungs. All these particles are mainly products of combustion. The major sources include industrial processes, power plants that are both coal and oil-fired, residential heating, and transportation. But coal burning is the greatest source. Table 1 below shows estimates of U.S. particulate emissions from various sources. National U.S. Emissions Estimates-1990 SOURCE PARTICULATES SULFUR OXIDES CARBON MONOXIDES Only 13% of the total is generated by transportation. Industrial sources account for nearly three times as much as 37%. Fires account for just about as much particulate emissions as transportation. That amount is matched by combustion from sources, which include the generation of all heat and electricity. When coal was the main source to generate energy, power plants and homes accounted for much greater contribution. The switch to oil and nuclear power has lowered those concentrations, but it hasnt been without its own problems. In addition to health-related problems, particles can damage materials through corrosion and erosion, as well as soiling. Particles can also impact the weather, through chan ges in visibility, and even in enhancing precipitation. Studies around major urban areas show an increase in precipitation and in thunderstorms with hail downwind from downtown areas. The weather modification is localizes but definite, and may be related to an increase in the large condensation nuclei that the particles provide. Lead particulates are brutal primary pollutant. Their presence in the atmosphere has diminished sharply during the past 29 years. Since 1975, the concentration of lead has decreased by more than 90%, which can be directly linked to the elimination of lead from gasoline. The following table shows that huge drop. Another primary group of pollutants consists of the surfur oxides(Sox), and the major contributor is SO2, a sulfur dioxide. This is generated whenever sulfur is burned, most often where fuel with a high sulfur content is used. Coal can have very high sulfur concentrations, as can some oil. Overall, coal and oil are the major sources for sulfur oxide p ollution. The vast majority of this type of air pollution comes from generation of heat and electricity. These stationary sources account about 80% of all sulfur oxides. Transportations contribution is minor, about 5%. The rest comes from industry. Sulfur dioxides cause damage to vegetation and material. Plants lose their chlorophyll which is the plants food factory. But the most damage appears when sulfur oxides combine with other substances. Because of its solubility, sulfur dioxide becomes a major contributor to acid deposition. Leaves are bleached and show damage. Tree growth is stunted and vegetation dies. Damage to vegetation occurs at concentrations lower than what is harmful to people. Carbon monoxide is colorless, odorless , tasteless,non-corrosive, highly poisonous gas of about the same density as that of air. It is very flammable, burns in air with bright blue flame. Its melting point is at-205.0 C and boiling point is at -191.5 C. There is no way to know if it is around, except we may no feel so well. When a fire burns in an enclosed space, oxygen is gradually depleted and carbon dioxide is increased. The changes in both of the these gases increasingly cause the combustion process to change from one of complete combustion to one of incomplete combustion, resulting in the release of increasing amounts of CO. Thus, even a perfectly designed and adjusted furnace or water heater (or any kind of combustion device) will eventually begin producing toxic/lethal amounts of CO if it operates in a closed space and/or where insufficient fresh air is available. Table three lists some of the effects of CO to humans. CO concentration in Parts Per Million or as as percentage of air % of CO in air Inhalation time and toxic symptoms developed 0.0009% Maximum allowable concentration short term in living area 0.0025% Maximum exposure TWA (Time Weighted Average) in the workplace. 0.005% Maximum exposure allowed (OSHA) in the workplace. 0.02% Mild headache, fatigue, nau sea and dizziness. 0.04% Serious headache other symptoms intensify. Life threatening after 3 hours. 0.08% Dizziness, nausea and convulsions Dead within 2 to 3 hours 0.16% Headache, dizziness and nausea. Death within 1 2 hours. 0.32% Headache, dizziness and nausea. Death within 1 hour. 0.64% Headache, dizziness and nausea. Death within 25 30 minutes. The early air pollution laws were passed within small communities and concerned the color and density of the smoke that comes out from the stacks. They first appeared in Chicago and Cincinnati and later on began to show up also in other communities. A special chart determined the level of smoke. The chart showed smoke with different shades of gray and black. At a particular level violations would be set. No national air pollution legislation appeared until the 50s. The first federal legislation appeared in 1955 when the Air Pollution Control Act was passed. In 1965 the Motor Vehicle Air Pollution Act was passed, establishing national automobile emission regulations for the first time. Then the Air Quality Act of 1967 was passed, providing funds for additional federal research and designating air quality control regions to help establish air pollution criteria. Another goal of this act was to research the cost -effectiveness relation of available engineering control techniques. Later, during the 70s National Air Quality Standards were set for the major pollutants. Primary standards were set for health, with secondary standards for vegetation and general environmental welfare. Penalties as high as $25.000 per day and a year in prison were authorized for industries that failed to meet the regulations. Automobiles emission standards were set. Additional adjustments to the 70s regulation came along in 1990. Each revised some of the older regulations. Some of which proved to be very strict and unattainable. Overall each new version strengthened and broadened the previous version. The most direct method of pollution co ntrol involves changing the fuel. High sulfur coal was responsible for the greatest smog outbreaks of the early twentieth century. Sulfur oxides and particulates reached dangerous levels in many areas, especially in industrial areas. During the 1960s and 1970s a switch to low sulfur oil, natural gas and nuclear power brought the levels of that kind of smog down to relatively low concentrations. Although complex control devices are available, the fuel switch in power plants accounts for most of the improvement. Of course change can introduce new problems. Natural gas combustion can increase the levels of nitrogen oxides, and nuclear power leads to new problems. Although we know that changing the fuel is not going to stop air pollution, but only reduce it, we are trying to find substitutes which will result to higher efficiency with lower emissions. Particles come in assorted sizes and shapes, and a number of control systems have been designed for removing them from the stream of gase s that go up the smokestack. The type of device depends on the type of particle and size. Soluble particles can be drained out of an effluent by washing with scrubbers. Sometimes, the particles will simply settle out before being emitted, in what are called settling chambers. Sometimes the gas is pushed through filters of cloth collectors. Other devices are even more sophisticated. The gas might be whipped around in a circular path, so that centrifugal force separates the particles. Those devices are called centrifugal separators. An other type of device is the electrostatic precipitators. This device delivers an electrical charge to the particles. An opposite charge is placed on a metal plate, and, because opposites attract, the particles will collect on the plate. Then the plate is cleaned off. Of course all these devices remove the particles, but once the particles have been removed the problem becomes how to dispose of the sludge. The toxicity of the material and its impact on t he environment become new considerations. One of the greatest polluters on Earth is the automobile. Volatile organic compounds, nitrogen oxides and carbon monoxides are the major pollutants that come out of a cars exhaust. If the air-fuel mix is lean, there is a good deal of air and less fuel. The combustion temperature will be relatively high, which will favor the complete burning of the gases, and hydrocarbons will convert to water vapor and carbon dioxides. However if the mixture is not so lean, but richer with more fuel the temperature will be lower. Instead of completely burning the hydrocarbons with the oxygen, you end up with unburned hydrocarbons and carbon monoxide instead of carbon dioxide. So the conclusion here should be to have a very lean mix of air and fuel. The problem with that is the high temperature of efficient combustion. The oxygen and nitrogen in the air combine, resulting in a lot of nitrogen oxides. You may reduce the carbon-monoxide pollution in having a tr ansformation to carbon dioxide, but on the other hand, you re going to end up with more nitrogen oxides. Any hydrocarbons that dont burn can now combine with nitrogen oxides under strong sunlight to deliver photochemical smog. That is one of the major dilemmas of the internal combustion engine. There are control devices that can eliminate some of the pollutants from the internal combustion engine, most notably the catalytic converter. It raises the temperature of gases that will be exhausted, so there will be further burning of the hydrocarbons. As a result we end with more water vapor and carbon monoxide. Once exposure levels have been set, steps can be undertaken to reduce exposure to air pollution. These can be accomplished by regulation of man-made pollution through legislation. Many countries have set controls on pollution emissions for transportation vehicles and industry. This is usually done to through a variety of coordinating agencies which monitor the air and the environm ent. A significant problem that has to deal with all the changes is the cost. A company that has to install million dollar electrostatic precipitators may have a serious economic problem with pollution control But in general, the overall costs of not controlling air pollution are far greater that the collective costs of pollution control. The problem of course is the concentration of costs within specific industries. Creative techniques of distributing that cost could go a very long way in maintaining our standard of living while having good and healthy air to breath. Only through the efforts of scientists, business leaders, legislators, and individuals can we reduce the amount of air pollution on the planet. This challenge must be met by all of us in order to assure that a healthy environment will exist for us. In our businesses, communities and as individuals, we can make meaningful reductions of air pollutants and gases. In many cases, one action will reduce both air pollutant an d gas emissions. Home energy improvements, ride-sharing, alternative transportation, and tree planting programs are just some of the community-based solutions to reducing air pollutant and gas emissions. A typical automobile will emit more than 40% of its own weight in common air pollutants in one year, and four times its weight in greenhouse gases. So for those necessary trips by car, make sure that it is a well-tuned, energy-efficient model! Also, avoid idling our engines, as restarting an engine uses less fuel than ten seconds of idling. Other actions we can take at home and at work include: Turn off energy-using equipment (lights, computers, or any machinery) when it is not in use. Make your home more energy efficient through improved insulation, caulking and weather-stripping. Recycle, since it takes much less energy to create a new product using recycled materials than using raw materials. Compost kitchen scraps and yard waste, because organic waste in landfills creates gases that contribute to climate change. Plant trees around our home. Its a natural way to insulate, and trees help clean the air and slow climate change. Marilyn Monroe Essay Bibliography:
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