In 1985, using satellites, balloons, and surface stations, a team of researchers had discovered a balding patch of ozone in the upper stratosphere, the size of the united states, over antarctica. Ppt ozone layer depletion authorstream presentation. Ozone depletion simple english wikipedia, the free. Scientific assessment of ozone depletion 2006 twenty. Ozone can be bad every spring a hole in the layer of harmless ozone as big as the usa opens over antarctica, a smaller one develops over. Project ozone layer depletion pdf the stratospheric ozone layer forms a thin shield in the upper atmosphere, protecting life on earth from. Ozone powerpoint templates w ozonethemed backgrounds. Presentation on ozone depletion linkedin slideshare. Ozone layer depletion powerpoint template sketchbubble. In 1985, using satellites, balloons, and surface stations, a team of researchers had discovered a balding patch of ozone in the. Ppt ozone layer depletion powerpoint presentation free. Jul 15, 2019 ozone layer depletion has been one of the major concern for the scientists of the world. Evs global warming, ozone depletion ppt ozone depletion. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer depletion.
Nearly 90% of earths ozone is in the stratosphere and referred to as the ozone layer. The questions address the nature of atmospheric ozone, the. The atmosphere is mostly transparent to the visible except for scatter. The cfc reaching the stratosphere involves in violent chain reaction with ozone and denatures it. All of the slides feature hd vectorbased graphics, which allows you to resize images and icons. The ozone layer is mainly found in the lower portion of the stratosphere. Presentation featuring global warming template size. A free powerpoint ppt presentation displayed as a flash slide show on id. Ozonedepleting substances reported to tri many class i and class ii ozonedepleting substances are included on the tri chemical list, and hence, the quantities released to the environment or otherwise managed as waste are reportable to epas tri program.
Ozone depletion cycles in the lower stratosphere the stratospheric chemistry and the ozone layer stratospheric circulation stratospheric photochemistry gas phase reactions ozone. Policy responses to ozone depletion mario molina and sherwood rowland showed in 1974 that cfc gases destroy ozone coordinating committee on ozone layer ccol established by unep in the 1970s vienna convention for the protection of the ozone layer held in 1985 montreal protocol to ban substances that. Attractive features of this depletion of ozone layer word document template. Professional depletion of ozone layer editable powerpoint.
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Causes of ozone layer depletion and its effects on human. The ozone story presentation ozone secretariat unep. The ozone layer thus plays an important role by preventing the harmful uv radiations from penetrating into the earths lower atmosphere the troposphere. 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. Ozone depleting substances are the substances such as chlorofluorocarbons, halons, carbon tetrachloride, hydrofluorocarbons, etc. All ozone depletion posters are produced ondemand using archival inks, ship within 48 hours, and include. Evs global warming, ozone depletion ppt free download as powerpoint presentation. Safeguarding earths protective ozone layer became a. British atlantic survey research station, holly bay, antarctic coast.
Ozone and environment ozone o3 a gas composed of three atoms of oxygen bluish gas that is harmful to breathe nearly 90% of the earths ozone is in the stratosphere and is referred to as the ozone layer ozone absorbs a band of ultraviolet radiation called uvb ozone depleting substances ods. Ozone absorbs a band of ultraviolet radiation called uvb. Policy responses to ozone depletion mario molina and sherwood rowland showed in 1974 that cfc. Easy and instant download editable add and edit content, images printable easy to print custom designs available. Presentation on ozone depletion ozone depletion medicine. The term ozone depletion can refer to a number of distinct, but related phenomena. All of the slides feature hd vectorbased graphics, which allows you to resize images and icons without decreasing the high quality. 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.
Management of ozonedepleting substances reported to the. Since about the 1970s, there has been a decrease in total volume of the ozone in the ozone. Ozone layer depletion penn state college of earth and. Ozone can be bad every spring a hole in the layer of harmless ozone as big as the usa opens over antarctica, a smaller one develops over the arctic at the north pole this is the first signs that the ozone layer is. Find powerpoint presentations and slides using the power of, find free presentations research about ozone water treatment ppt. Best powerpoint templates download your favorites today. Depletion of ozone layer editable word template and design.
It contains high concentrations of ozone o3 relative to other. Depletion of ozone layer powerpoint template is one of the. Ppt effects of ozone depletion powerpoint presentation. Hope now you have gained some idea about the importance of. Emissions accumulation transport chemical reaction conversion removal polar stratospheric clouds increase ozone depletion by reactive halogen gases, causing severe ozone loss in polar regions in winter and spring. 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. These scientific powerpoint templates can be very useful to make presentations on science ppt topics like space travel, chemistry presentations, biology presentations, and reallife topics. Ppt ozone depletion powerpoint presentation free to. Find powerpoint presentations and slides using the power of, find free presentations research about. Experiments show that ozone strongly absorbs solar ultraviolet uv radiation. Why the hole in the atmospheric ozone layer above us.
Displaying powerpoint presentation on the ozone layer formation and depletion available to view or download. The uploader spent hisher valuable time to create this depletion of ozone layer powerpoint presentation slides, to share hisher useful content with the world. 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. Unlike oxygen o2, ozone has a strong scent and is blue in color. This depletion of ozone layer professional powerpoint template. The ozone layer was discovered in 19 by the french physicists charles fabry and henri buisson. Ozone shown to be a natural atmospheric constituent. Thus ozone depletion, the so called ozone hole formed.
Ppt ozone layer depletion powerpoint presentation free to. Active chlorine is in the ppt range similar to hox, less than nox. Effects of ozone depletion 1 effects of ozone depletion 2 the discovery. In response to the prospect of increasing ozone depletion, the governments of the world crafted the 1987 united nations montreal protocol as a global means to address this global issue. View and download powerpoint presentations on ozone water treatment ppt. And, most important, we know that if ozone depleting gases were to continue to accumulate in the atmosphere, the result would be more depletion of the ozone layer.
Stratospheric ozone depletion is a concern because the ozone layer in the stratosphere keeps 9599% of the suns ultraviolet radiation from striking the earth. Depletion of ozone layer powerpoint template is one of the best. You can use these nature ppt in your projects and presentations. Ozone layer depletion has been one of the major concern for the scientists of the world. Our ozone layer depletion ppt template is excellent for giving an indepth presentation about such a topic. The ozone saga is an inspiring goodnews story thats. Following is the list of some of the main ozone depleting substances and the sources from where they are released.
The ozone depletion by the year 2050 would have been at least 50% in the mid latitudes in the northern half of the earth, 70% in the mid latitudes of. Ozone depletion eric lin, cody lu natalie qin, silvia shi the ozone layer is essential to organisms because it protects them from harmful effects. It contains high concentrations of ozone o3 relative to other parts of the atmosphere. Be effective with your powerpoint presentations by using our depletion of ozone layer powerpoint presentation template. Emissions accumulation transport chemical reaction conversion removal polar stratospheric clouds increase ozone depletion. My teaching and textbook1 have always covered many physicsrelated social issues, including stratospheric ozone depletion and global warming. Ozonedepleting substances reported to tri many class i and class ii ozonedepleting substances are included on the tri chemical list, and hence, the quantities released to the environment or otherwise. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer. Ozone depletion simple english wikipedia, the free encyclopedia. Ozone is a gas that is present in the ozone layer in the stratosphere of the earth. Our powerpoint database library returned 18 results from your search which can be seen below. The ozone layer refers to a region of earths stratosphere that absorbs most of the suns uv radiation. Presentation on ozone depletion ozone depletion scribd. Cfcs, hcfcs, halons, methyl bromide, carbon tetrachloride, and methyl chloroform.
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Graphs and diagrams slides to give professional look to you presentation. The answers are updates of those first presented in the previous ozone assessment, scientific assessment of ozone depletion. Near the ground, ozone forming as a result of chemical reactions involving traffic pollution and sunlight may cause a number. Editabletemplates download premium powerpoint templates and business design templates. The ozone layer is a deep blanket in the stratosphere made up of comparatively high concentration of the ozone. Ozone and environment ozone o3 a gas composed of three atoms of oxygen bluish gas that is harmful to breathe nearly 90% of the earths ozone is in the stratosphere and is referred to as the ozone layer.
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