Tropospheric ozone is undesirable since it is a pollutant these‚ causing photochemical smog and greenhouse effect. In the stratosphere‚ it acts as a protectant since‚ (i) It absorbs the dangerous UV-radiations (ii) It helps to trap the weather pattern within the troposphere‚ by generating a temperative inversion in the stratosphere. Tropospheric ozone is increasing due to human activities‚ while stratospheric Or‚ is decreasing. This decrease is called Ozone Depletion Ozone depletion deals with
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Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth’s stratosphere (the ozone layer)‚ and a much larger springtime decrease in stratospheric ozone over Earth’s polar regions. The latter phenomenon is referred to as the ozone hole. In addition to these well-known stratospheric phenomena‚ there are also springtime polar tropospheric ozone depletion events. The details of polar ozone
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Ozone Depletion: An Introduction Planet Earth has its own natural sunscreen that shields us from the sun’s damaging ultraviolet radiation. It’s called the ozone layer: a fragile band of gases beginning 15 kilometres above our planet‚ and reaching up to the 40-kilometre level. Human activities have caused a substantial thinning of this protective covering — not only over the North and South Poles‚ but right over our heads. Stopping ozone layer depletion is one of the major challenges facing the
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Ozone depletion and Volatile Organic Compounds Christina Stelmach SCI/ January 20‚ 2013 Christine Snyder The atmospheric issue that I chose to write about is the Ozone layer depletion and the indoor air pollutant is Volatile Organic Compounds. I am going to talk about the cause and effect of each of these issues and also efforts to mitigate the issues. Our Earth’s Ozone layer protects all life from the sun’s harmful radiation. Due to all human activities damage has been done to our
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For that reason the atmosphere and the ozone layer within it are crucial to a stable life on this planet. The ozone layer is in danger‚ however. It is facing depletion by a toxic man-made substance called chlorofluorocarbons (CFCs). Together the international community is working through treaties and conventions to stop this environmental problem. To understand the problem behind ozone depletion we first must understand what ozone is and how it works. Ozone is a thin protective layer that starts
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The ozone layer is a layer in Earth’s atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 97–99% of the Sun’s high frequency ultraviolet light‚ which is potentially damaging to the life forms on Earth.[1] It is mainly located in the lower portion of the stratosphere The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson The photochemical mechanisms that give rise to the ozone layer were discovered by the British physicist
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Figure 2: Sample Essay The Ozone Layer (1) PARAGRAPH 1 (DEVELOPED FROM THE CRITICAL QUESTION AND KEY TERMS) Problems with ozone can teach us about human effects on our environment. The ozone layer is an invisible layer of gas that shields us from UV radiation. UV radiation is ultraviolet radiation‚ or rays of the sun that can harm living things. One problem today is that the protective ozone layer around the earth is being destroyed (PROBLEM). (2) PARAGRAPHS 2‚ 3 & 4 (DEVELOPED FROM
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The Importance of the Ozone "Like an infection that grows more and more virulent‚ the continent-size hole in Earth ’s ozone layer keeps getting bigger and bigger"(Beyond Discovery). The ozone is a protective layer that occurs naturally in the stratosphere‚ 6 to 28 miles in altitude. Each year‚ since the late 1970 ’s‚ much of the ozone layer above Antarctica has disappeared‚ creating what is popularly known as the "ozone hole." This hole now measures about 9 million square miles‚ nearly the
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The Ozone Layer It acts as a sun block and filters out the dangerous ultra-violet rays from the sun ("The Chemistry of the Ozone Layer"). The Earth ’s atmosphere is broken up into two layers that have to do with ozone ("Ozone Layer"). The troposphere is the lowest layer ("Ozone Layer"). It extends from Earth ’s surface up to about ten kilometers in altitude ("Ozone Layer"). All most all human activities happen in this layer ("Ozone Layer"). The next layer is the stratosphere ("Ozone Layer")
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OZONE-LAYER DEPLETION AND NATURAL RESOURCES INTRODUCTION Sometime ago‚ a warning endorsed by more than 1‚600 of the world’s most distinguished scientists‚ including 102 Nobel Prize winner states in part: Human being and the natural world are on collision course. Human activities inflict harsh and often irreversible damaged on the environment and critical resources. If not checked‚ many of our current practices put as serious risk the future that we wish for human society and the plant
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