Effects of CClF3 on Ozone
CCl3F was used to enter the stratosphere from 1930 to 1955. The ozone layer above Canada began to decline in 1975. Once the production of CCl3F was drastically reduced, it took 20 years for the CCl3F levels to decrease in the stratosphere. In conclusion, CFCs (Chlorofluorocarbons) are inorganic man-made chemicals that have been in production for more than 50 years in Canada.
They were thought to be sensational substances due to their stability, nonflammable characteristic, low toxicity, and inexpensive cost. However, research on CFCs showed that they have long life ps, allowing them to resist being washed away in rain. Through the aid of wind, CFCs rise up into the stratosphere and into the ozone layer where they decompose into chlorine and bromine, due to ultraviolet radiation. These two chemicals are responsible for damaging the ozone layer.
Some atmospheric chlorine is caused by natural occurrences such as large fires and volcanic eruptions, yet most chlorine in the ozone layer is due to CFCs from man-made products such as refrigerators, aerosols, solvents, and other household items. Studies show that for every one chlorine atom that is released into the ozone layer, 100,000 ozone molecules are destroyed. According to the statistics recorded in 1979, the ozone layer has decreased every single decade by nearly 4% to 6% in mid-latitudes and 10% to 12% in higher southern latitudes.
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This constant decrease has left the ozone layer permanently damaged. Even though the production of CFCs has drastically decreased over the past couple of years, the ozone layer is unable to replace itself. Research has shown how Earth is affected by the depletion in the ozone layer. CFCs are so stable that the only way to break them is by exposure to strong UV radiation. When this occurs, the CFC molecule releases chlorine that can destroy 100,000 ozone molecules.
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Effects of CClF3 on Ozone. (2018, Jul 17). Retrieved from https://phdessay.com/effects-of-cclf3-on-ozone/
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