Thus, ozone layer depletion has become a major concern among the environmentalists. As an introduction to environmental science and law, this primer looks at a range of global and local pollution themes and issues. This document is highly rated by class 11 students and has been viewed 1140 times. It is clear that under cloudfree skies there is a strong correlation between. Stratospheric pollution definition, examples, diagrams. The latter phenomenon is referred to as the ozone hole. Researchers indicate that many of the effects of ozone depletion on human health tend to apply for animals, too. Pdf causes of ozone layer depletion and its effects on. Ozone is a form of oxygen in which three atoms of oxygen combine to form a single molecule of ozone. Air plays a vital role not only in nature but also in the lives of human beings and all living organisms. Tailpipe emissions from automobile traffic are the main contributors to ozone pollution. Sep 20, 2016 unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major human activity.
Click download or read online button to get acid rain and ozone layer depletion book now. This timeline highlights the average area of the ozone hole between september 7th and october th as observed by nasa spacedbased instruments see colored bars and scale. Ozone depletion has also been detected outside the antarctic. As a result of its chemical composition, ozone is regarded as a special type of oxygen as it contains three oxygen molecules o3 as opposed to the usual two oxygen molecules o2. Air pollution and stratospheric ozone depletion air pollution and stratospheric ozone depletion chapter. Both ozone depletion mechanisms strengthened as emissions of cfcs and halons increased 1. Ozone air pollution and health studies have indicated that exposure to groundlevel ozone air pollution, even at very low levels, can cause a number of respiratory health effects particularly over time. In comparison with the earlier assessments on effects of ozone depletion, the present. Ppt ozone layer depletion powerpoint presentation free. Review article pdf available in atmospheric and climate sciences 0601. Download32 is source for ozone depletion shareware, freeware download calculator of doze of ozone, ecoball, the simpler way, ozone java oodbms. Satellite data indicate a global reduction in ozone of about. Click download or read online button to get ozone depletion greenhouse gases and climate change book now.
It was first identified in 1970s due to the advent of supersonic aircraft, which fly in the lower stratosphere and emit nitrogen oxides. The chlorine reacts with the oxygen atoms in ozone and rips apart the ozone molecule. Pollution, pollutants and ozone layer depletion class 11. Because we have given more than 30 ppt in one place.
Effects of ozone depletion ozone depletion, ozone layer. Air quality guide for ozone groundlevel ozone is one of our nations most common air pollutants. Depletion of this layer by ozone depleting substances ods will lead to higher uvb levels, which in turn will cause increased. Powerpoint is the worlds most popular presentation software which can let you create professional depletion of ozone layer powerpoint presentation easily and in no time. Unlike oxygen o2, ozone has a strong scent and is blue in color. Depletion of the ozone layer the ozone layer, a thin band. There are also springtime polar tropospheric ozone depletion. Download acid rain and ozone layer depletion or read online books in pdf, epub, tuebl, and mobi format. This site is like a library, use search box in the widget to get. Environmental effects of ozone depletion ceda document repository.
The third body m absorbs the excess energy liberated by the above reaction and there by stabilise the o 3 ozone molecule. Many varieties of atmospheric pollutants toxic chemicals, synthetic substances, such as ddt, and manmade chemicals enter the atmosphere. Ozone is formed by photochemical reaction, followed by three body reaction. Ozone is a naturally occurring gas in the atmosphere. Living organisms can survive without water for some time but cannot survive without air because when we breathe then we intake oxygen from air and. Controlling ozone depletion 1 international environmental policy controlling ozone depletion 2 ozone the basics. Ozone layer depletion, its causes and its effects scribd. The nrp programme office publishes a free research newsletter called. Project report on ozone depletion environmental pollution. Causes, effects and solutions of ozone layer depletion. Effects of ozone depletion ozone depletion is affecting the human health and environment negatively, as it allows the penetration of uv radiations to reach the earth. Additional copies may be obtained, free of charge, from. This regions low temperatures speed up the conversion of cfcs to chlorine.
The ozone layer lies approximately 1540 kilometers 1025 miles above the earths surface, in the stratosphere. The uploader spent hisher valuable time to create this depletion of ozone layer powerpoint presentation slides, to share hisher useful content with the world. Title vi for stratospheric ozone protection, signed into law. Far above earths surface, the ozone layer helps to protect life from harmful ultraviolet radiation. Download32 is source for ozone depletion shareware, freeware download calculator of doze of ozone, ecoball, the simpler way, ozone java oodbms, ozone web application framework, etc. Stratospheric ozone depletion, ultraviolet radiation and.
Download fulltext pdf download fulltext pdf causes of ozone layer depletion and its effects on human. Near the ground, ozone forming as a result of chemical reactions involving traffic pollution and sunlight may cause a number of respiratory problems, particularly for young children. Ozone depletion over india with so much worry about the rapid ozone depletion taking place in various parts of the earth, indian scientists are closely monitoring the ozone layer over india for possible depletion trends. Scribd is the worlds largest social reading and publishing site. National research programme on global air pollution and climate change nrp. Update on ozonedepleting substances odss and other gases of. Ozone depletion and climate change environment canada. Learn what cfcs are, how they have contributed to the ozone hole, and how the 1989 montreal. In fact whole world is vulnerable to its after affects. The presence of ozone is of singular importance because it filters out the incoming ultraviolet uv radiation and thus acts as a screen against ultraviolent radiation.
A close look at the evolution at the life on earth reveals that initially the. Evolution of policy responses to stratospheric ozone depletion. It contains high concentrations of ozone o3 relative to other parts of the atmosphere. The ozone layer above the antarctic has been particularly impacted by pollution since the mid1980s. This site is like a library, use search box in the widget to get ebook that you want. Ozone depleting substances are the substances such as chlorofluorocarbons, halons, carbon tetrachloride, hydrofluorocarbons, etc.
Evidence of ozone depletion in the stratosphere began to appear in the 1980s. Air pollution is the presence of one or more disadvantageous content in such quantity and for such duration, as it is catastrophic, or tend to be catastrophic, to human health and welfare, animal or plant life. Unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major human activity. Ozone discourses is unique in its use of discourse theory to describe the intersection of scientific knowledge and political power, and unmatched in its comprehensive analysis of the ozone treatymaking process over the past two decades. A free powerpoint ppt presentation displayed as a flash slide show on id. Top 03 biggest sites to download free pdf booksif you are going to find the best websites to download free pdf books online you are in the right place, from where you can download free books, including study books, novels, including fiction. Ozone depleting substances are those substances which deplete the ozone layer. The student is encouraged to see the complexity of the subject and how ethically ambiguous it can be includes bibliographical references and index 1. Ozone depletion greenhouse gases and climate change. Ozone depletion occurs when the natural balance between the production and destruction of ozone in the stratosphere is tipped in favour of destruction. Ozone depletion is affecting the human health and environment negatively, as it allows the penetration of uv radiations to reach the earth.
The increase in the levels of uv rays lead to high rate of skin cancer and eye related problems. Ozone depletion has been observed over the past decades, and is most likely caused by. This helps you give your presentation on depletion of ozone layer in a conference, a school lecture, a business proposal, in a webinar and business and professional representati. Winds inefficiently mix the troposphere the closest vertical zone between the earths surface and an altitude of 1015 km 6. Ozone depletion and global pollution although on average there are only four molecules of in contrast to the stratosphere, the elevated ozone ozone for every 10 million molecules of air, it is central to levels in the troposphere are problematic. Ozone layer depletion in pdf ozone layer depletion in pdf ozone layer depletion in pdf download. Environment pollution m free download as powerpoint presentation. Ozone layer depletion, its causes and its effects free download as powerpoint presentation. Ozone layer depletion definition, examples, diagrams.
By traveling from ground to vertical atmosphere envelop of gases. Printed in the netherlands, this book is dedicated to all patients with the wish to regain their. Ozone depletion refers to the wearing out or reduction of the amount of ozone in the stratosphere. Following is the list of some of the main ozone depleting substances and the sources from where they are released. Environmental studies ozone depletion tutorialspoint. Increases in surface uvb due to the ozone hole can be partially inferred by radiative transfer model. One of the greatest and most dangerous effects of pollution on the ozone layer is that it creates holes in the atmosphere, which allow powerful ultraviolet rays from the sun to reach the earths surface.
Ppt ozone layer depletion powerpoint presentation free to. Living organisms can survive without water for some time but cannot survive without air because when we breathe then we intake oxygen from air and releases carbon dioxide, if this procedure does not take. Ozone depletion definition ozone depletion is the term commonly used to describe the thinning of the ozone layer in the stratosphere. The ozone layer is mainly found in the lower portion of the stratosphere. The latest satellite measurement indicates an ozone loss at the rate of 8% just above the south pole, at the centre of the ozone hole, 5% of the protective gas is depleting each day. Presentation on ozone depletion linkedin slideshare. Fire extinguishers contain halons and methyl bromide in the form of pesticides can also be also a cause for the depletion. Top 03 biggest sites to download free pdf booksif you are going to find the best websites to download free pdf books online you are in the right place, from where you can download free books, including study books, novels, including fiction, and nonfiction books, poetry books, literature books, childrens books, science books, etc. This is the cause for the nearly 80% of the ozone depletion. By the usual definition, stratospheric ozone depletion is not an integral part. The chlorine becomes actively involved in the process of. What are the effects of pollution on the ozone layer. The ozone depletion process begins when cfcs or other ozonedepleting substances are released, usually near ground level. In an associated literacy activity, students learn how to tell a story in order to make a complex topic such as global warming or ozone holes easier for a reader to grasp.
Ozone layer depletion cause, effects, and solutions. Acid rain and ozone layer depletion download ebook pdf. Ozone depletion also explains much of the observed reduction in stratospheric and upper tropospheric temperatures. May 03, 2020 pollution, pollutants and ozone layer depletion class 11 notes edurev is made by best teachers of class 11. If you dont have an air conditioner, staying inside with the windows closed may be dangerous in extremely hot weather. Causes of ozone layer depletion and its effects on human. Stratospheric ozone depletion, uvb radiation and crop disease. Depletion to ozone layer depletion does not affect a region or a country. Feb 12, 2018 far above earths surface, the ozone layer helps to protect life from harmful ultraviolet radiation. In the earths upper atmosphere ozone plays an important and beneficial role by providing a shield from the suns ultraviolet rays.
Use the chart below to help reduce your exposure and protect your health. Why the hole in the atmospheric ozone layer above us. Symptoms of ozone exposure when people breathe ozone air pollution, the lining of their lungs can become irritated and inflamed. Students explore the causes and effects of the earths ozone holes through discussion and an interactive simulation. Industries that manufacture things like insulating foams, solvents, soaps, cooling things like air conditioners, refrigerators and takeaway containers use something called chlorofluorocarbons cfcs. Ozone depletion consists of two related events observed since the late 1970s. The ozone layer refers to a region of earths stratosphere that absorbs most of the suns uv radiation. The ozone layer is a deep blanket in the stratosphere made up of comparatively high concentration of the ozone. It exists in the stratosphere between 20 and 50 kilometers above the surface.
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