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CFC's

            The poisoning of the Earth's ozone layer is increasingly attracting worldwide concern for the global environment and the health effects of life on the Planet Earth. There is not just one particular cause for the ozone's depletion; the accumulation of different pollutants into our ozone layer has all added up and equaled a worldwide problem. There is not just one effect from the poisoning of the ozone, but instead multiple ramifications from diseases to death. The damage to the ozone is increasing with every second; moreover, there are many ways we can help reduce the problem and preserve the ozone layer. Ozone is a pale blue gaseous form of oxygen, in chemical form it is also known as O3. Ozone can be beneficial or harmful depending on its location in the Earth's atmosphere. If the ozone is located in the troposphere (which extends from the surface of the Earth up to approxiametly10 miles) it is a harmful pollutant and a major component in smog and other environmental health problems. Such tropospheric ozone can damage plastic, rubber, plant and animal tissue. Ozone located approximately 10-25 miles above the Earth's surface, in a part of the Earth's atmosphere called the stratosphere is very beneficial. The ozone is a major factor that makes life possible on Earth. About 90% of the planet's ozone is in the ozone layer. Ozone in this layer shields and filters out the Earth from 95-99 percent the sun's ultraviolet radiation. A low level of ozone does not protect or prevent the sun's ultraviolet rays from reaching the surface of the Earth, therefore, overexposing life on Earth causing many diseases. The depletion of the ozone is caused by many factors, but the one cause that will be elaborated on in the next paragraph is the main reason our ozone is continuously being poisoned. The major cause in the depletion of the Earth's ozone layer is because of the release of chlorofluorocarbons into the atmosphere.


Essays Related to CFC's

1. Cfcs and the Ozone Layer Depletion

... as aerosol propellants, in manufacturing foam, and in making Styrofoam containers. Furthermore, others are being used for cleaning delicate electronic equipment, such as computer chips and circuit boards. Moreover, these Cfcs appeared to be the perfect industrial chemical because they were, seemingly, completely safe for people and the environment. However, two scientists, F. Sherwood Rowland and J. Molina became curious if they were ... would remain there for a long period of time, "50-200 years" (Rowland 1991 p. 32), gradually rising through the troposphere into the stratosphere (Rowl...

  • Word Count: 2163
  • Approx Pages: 9
  • Has Bibliography
  • Grade Level: High School

2. CFCs And Alternative Aerosol Propellents

... away in the world and concluded that there would be a trace amount of the gas in the atmosphere. Lovelock wanted to measure the amount of CFCs in the atmosphere just because he could. He had invented a new device that was capable of measuring trace amounts of gasses and wanted to try ... it out. He also figured that since CFCs had been around for about 15 years, they would be excellent tracers for studying atmospheric circulation. Lovelock went around trying to get funding to do ... in the annihilation of the ozone molecule. At first Molina and Rowland didn't see this as a big problem; ...

  • Word Count: 1942
  • Approx Pages: 8
  • Has Bibliography
  • Grade Level: High School

3. Depletion Of The Ozone Layer

... chlorine and bromine when they breakdown, they damage the protective ozone layer. In the early 1970's, researchers began to investigate the effects of various chemicals on the ozone layer, particularly CFCs, which contain chlorine. Potential impacts of other chlorine sources were examined also. Chlorine from pools, for example, do not reach the stratosphere. Those chlorine compounds readily combine with water ... greatly from location to location. In some regions the layer disappears for weeks and then returns. This depletion of the ozone layer occurs because of the harsh reaction of CF...

  • Word Count: 2746
  • Approx Pages: 11
  • Grade Level: High School

4. ozone

... " retardation (Singer). There are hours to spend looking at how environmental scientist contradict each other. For example, some scientists say how the human population emits too many CFCs and other ozone "depleting" gasses. On the other hand, however, many scientist argue that in 1976 an Alaskan volcano spewed 570 times the worlds CFC production(Begley- ... , even though the law doesn't go in place for another three years! The real outraging part of the ordeal comes when one observes the effects of outlawing CFCs. First of all the coast of replacing refrigerators alone would cost 30-50 b...

  • Word Count: 4635
  • Approx Pages: 19
  • Grade Level: High School

5. Ozone

... If all leaks were fixed, then approximately thirty million pounds of CFC per year would not be released into the atmosphere. Additionally, hydrochlorofluocarbons (HCFCs) have been developed as a replacement for CFCs. HCFCs cause less damage because the hydrogen makes them more reactive. As a result, the chlorine is less likely to reach the stratosphere because of the chemical reactions that occur in ... Protocol and helped to lower air pollutants. The (CLA) addresses acid rain, toxic emissions and automobile exhaust in addition to ozone depletion. The CLA ends the production of all CFCs...

  • Word Count: 3086
  • Approx Pages: 12
  • Has Bibliography

6. the ozone layer

... destruction chlorine can produce, one chlorine atom can break apart more than 100,000 molecules of ozone. Chlorofluorocarbons are not naturally produced chemical, but shockingly are all man-made products. CFCs products and other ozone depleting substance are everywhere and come in all forms such as: aerosol spray cans, industrial cleaning agents, insulators, Styrofoam's, coolants, auto air conditioners, home ... and home air conditioning systems, as well as in refrigerators can leak out, and eventually will rise into the atmosphere destroying the ozone layer. According to Greenpeace, "The...

  • Word Count: 2237
  • Approx Pages: 9
  • Has Bibliography
  • Grade Level: Undergraduate

7. Depletion of the Ozone Layer

... that chlorine comes from natural sources like volcanic eruptions and does not cause permanent damage (Cagin 6). NASA researches claim that they have evidence that shows CFCs are to blame for ozone depletion. Natural chlorine is only about 1/5 of the chlorine in the stratosphere because most of it dissolves in the ... (Cagin 6). Oceans and volcanoes do release large amounts of chlorine, but this chlorine dissolves easily in water and washes out in the rain (Cagin 7). CFCs, on the other hand, do not dissolve in water. They do not break down in the lower atmosphere. When CFC's get to the s...

  • Word Count: 1231
  • Approx Pages: 5
  • Has Bibliography
  • Grade Level: High School

8. Ozone Depletion

... . In fact, 50 years ago they could be found as refrigerants, solvents and blowing agents, but back then they had no idea that CFCs would eventually cause the breakdown of the ozone layer over Antarctica. In 1970 researchers started to observe different chemicals found in the ozone layer. ... developed a formalized international cooperation at the Vienna Convention. As a result the Montreal Protocol was signed in 1987. This protocol would have had the CFCs reduced in half by 1998. Because of the increasing damage of the ozone layer in 1992, the countries decided to end the production of h...

  • Word Count: 1635
  • Approx Pages: 7
  • Has Bibliography
  • Grade Level: High School

9. Ozone

... shield is being depleted well beyond the normal changes dues to natural processes. Scientists have determined the ozone is being depleted. The main reason for this is chlorofluorocarbons (CFCs). Fifty years ago, CFCs were thought of as miracle substances because they were stable, nonflammable, low in toxicity, and cheaply produced. They have been used in refrigerants, solvents, foam blowing agent ... compounds are carried into the stratosphere, where they can undergo hundreds of catalytic cycles involving ozone before being scavenged by other chemical species. Replacement compounds for C...

  • Word Count: 890
  • Approx Pages: 4
  • Has Bibliography
  • Grade Level: High School

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