CHAPTER I
INTRODUCTION
This chapter presents the overview of the topic about the causes and effects of air pollution to our environment.
The term air pollution is a mixture of natural and manmade substances in the air we breath such as fine particles produced by the burning of fossils fuel ground level ozone, which is a reactive form of oxygen that is a primary component of urban smog and noxious gases such as sulfur dioxide, nitrogen oxides, carbon monoxide, and chemical vapors. The health effects of air pollution have been reported in research studies over the past 30 years. These effects include respiratory diseases such as asthma, cardiovascular diseases changes in lung development in children.
What pollutants affect air quality?
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Nitrogen oxides from automobile exhaust are controlled by recirculation exhaust gas diluting the air to fuel mixture being burned in the engine. Delusion reduces the temperatures of combustion and decrease the oxygen concentration in the burning mixtures, resulting in the production of fewer nitrogen oxides. Unfortunately the same process increase hydrocarbons emissions. Nevertheless, exhaust the circulation the reduce nitrogen oxide emissions has been common practice in the United States for more than 20 years.
C. POLLUTION CONTROL: SULFUR DIOXIDE Sulfur dioxide emissions can be reducing through basic measures performed before, during or after combustion. Technology to clean up coal so it will burn more cleanly is already available. Although the cause of removing sulfur mix fuel more expensive, the expense must be balanced against the long term consequences of burning sulfur- rich coal. Changing from high- sulfur coal low sulfur coal seems solution to reducing emissions of sulfur dioxide. In some regions, this change will work. Unfortunately most low sulfur coal in the United States is located in the Western part of the country, whereas, must coal is burn in the east. Thus, transportation is an issues use of low- sulfur coal is a solutions only in cases where it is economically feasible.
III. GENERAL EFFECTS OF AIR POLLUTION The effects of air pollution on vegetation are numerous. They include damage to leaf tissue, needles and fruit
With the supply of fossil fuels steadily declining, gas and oil is becoming harder to harvest which means it is getting more expensive. Fossil fuels take millions of years to be naturally produced, yet each person burns gallons of gas per day (Maehlum par. 5). Though fossil fuels are produced naturally, when burned they release nitrogen oxides gases into the atmosphere, which contributes to the formation of smog and acid rain. According to the EPA, major sources of these nitrogen oxide emissions come from cars and trucks, coal-fire powered plants, large industrial operations, and ships and airplanes (EPA par 3). By reducing the number of gas powered cars on the road, we can reduce the amount of harmful chemicals we are releasing into our atmosphere.
The period between the American Revolution and the Civil War had great significance for the United States' economy. Although initially the economy seemed unstable at first, after the second war that America fought with England, the economy began to show considerable growth thereafter. This can be seen as the result of the cotton trade in the South and the eventual industrialisation of America, especially in the Northeast and later the West. From the invention of cotton gins to the adaptation of railways one can see how the United States used their opportunities and resources to their full advantage, transforming their economy to be able to compete among the worlds leading economical countries.
Air pollution is a big problem in our world today because it affects our lives on earth as well as animals and plants. Breathing polluted air can make you very sick it can cause your eyes and nose to burn. It can irritate your throat and even make your breathing difficult. Air pollution is a big environmental problem because it is affecting our crops, trees, wildlife, and lakes/oceans. Pollution is harming fish and other aquatic life in those bodies of water.
In today’s complex and interdependent earth systems, air pollution does not only affect human as a whole, but also the entire ecological systems that involves forests and wildlife (animals). Air pollution are caused
“Power plants use flue gas desulfurization equipment, also known as scrubbers, to clean sulfur from the smoke before it leaves their smokestacks. In addition, industry and the U.S. government have cooperated to develop technologies that can remove impurities from coal or that can make coal more energy-efficient so less needs to be burned.” (Coal).
CO2 is the most significant greenhouse gas, which mainly comes from the use of fossil fuels. Many people feel that content of CO2 in the atmosphere is the main reason for manmade global warming. The main sources of CO2 emissions involve electricity generation, industrial processes, fumes from transportation and commercial buildings and use. Emissions of greenhouse gases, such as CO2, to the atmosphere are expected to cause even more of a significant change in global climate (Davison, 2007). The main focus to try to reduce the amount of carbon dioxide in the atmosphere is to reduce the amount that is released from coal-fired power plants. Greenhouse gas emissions that involve the productions of electricity come from natural gas production and coal-fired power plant operations. Natural gas production accounts for twenty-four percent and coal-fired power plant operations accounts for seventy-five percent, while the other one percent is caused by other electricity generation operations. The main reason why coal-fired power plants have a higher percentage of emissions is because the sulfur content of coal is much higher than that of other fossil fuels (Jarmaillo et al., 2007). This proves that there is a great need to find an alternative fossil fuel to use instead of coal. Although coal is easy to mine, transport and process for the electricity generation process, it is also the
Did you know many upper respiratory diseases such as asthma and others diseases like cataracts and skin cancer are aggravated by air pollution. The NRDC (Natural Resources Defense Council) states that “the following air pollutants are common triggers of asthma, ground level ozone, sulfur dioxide, fine particulate matter and nitrogen oxide.” Air pollution is the presence in or introduction into the air of a substance which has harmful or poisonous effects.
These pollutants are characterized as air toxics, which include lead, ozone, carbon monoxide, sulfur dioxide, particulate matter, nitrogen dioxide, and a variety of other chemicals. The impact of air pollution could be very serious to both the heath condition of the population, which could by extension affects the economy of the impacted community. However, this impact is directly related to the amount of pollution in the air. Health consequences from air pollution could range from eye irritation, brain and nerve damage, runny nose, cancer, heart and
Air pollution causes great damage to the environment. These damages include acid rain, eutrophication,haze, ozone depletion, global climate change, etc. "Acid rain is precipitation containing harmful amounts of nitric and sulfuric acids."Acid
Another big problem in polluting places and things is air pollution which can make air foggy, unbreathable, and toxic. According to “34 Facts about Pollution”, the text states breathing the air in Mumbai, India, for just one day is equivalent to smoking 100 cigarettes. One of the things that can cause air pollution is releasing factory fuels and fossil fuels into the air. We also cause it from burning certain things like plastic, chemicals, and other
There are many kinds of air pollution. The ones I want to talk about are the ozone, acid rain, carbon monoxide and toxic air contaminants. Ozone is formed when hydrocarbons and nitrogen oxide react in sunlight.
Earth is the only place in the universe that can support human life. It is very important that we realize this fact and take very good care of it. Various human activities cause the destruction of earth. Human beings can live a few days without food and water however humans can last only a few seconds without oxygen. Various human activities lead to the aggravation of the quality of air. Gases produced by human activities mainly due to exploitation of resources and industrialization cause air pollution. Green house gases mainly chlorofluorocarbons; carbon
The sulfur dioxide was regarded as the acknowledged toxic gas, and is also one of main factors for acid rain. Due to its severe toxicity, the major pollution incidents have even happened in human beings’ history. During 1st December and 15th December 1930, the toxic gases including the sulfur dioxide caused great loss for Meuse Valley in Belgium. The toxic gases led to thousands of people in the industrial zone of Meuse Valley were catched with respiratory diseases, and “nearly 63 people were dead within a week”. ( Benery B, HoetPH, Nemmar A. 2001) Additionally, many livestocks also could not survived and died of the toxic gases. In the incident, the mixture of SO2 and SO3 were the main dioxide smog.
There are two main types of air pollution, particulate matter (PM) and ozone. Particulate matter is some tiny dust. For example, according to a beam of light at night there are countless dusts floating in the air. They are particle. Ozone is an invisible chemical gas in the air. When these gas touch with light will become smog. Factory and vehicles exhaust emissions have become the largest cause of PM and ozone pollution in the United States. If a plant wants to run, they need to burn fuel to provide power; however, a lot of particulate matter will float in the air when the factory burns fuel. When people drive cars can
At the first, what is air pollution? The air pollution is contamination of air by the discharge of harmful substances. We’ve got many pollutants, which cause air pollution. Like carbon monoxide, carbon dioxide, chlorofluorocarbons, lead and many more. All of these pollutants can cause lot of illnesses, like cancer, birth defects, brain and nerve damage, long-term injury to the