Presentation on ozone depletion linkedin slideshare. The uv intensity on the surface of the earth fluctuates from day to day and depends on where you live. Ozone layer depletion article about ozone layer depletion. Depletion of ozone layer powerpoint template comes with different editable charts. Presentation on ozone depletion free download as powerpoint presentation. Causes of ozone layer depletion and its effects on human.
If interested, you can purchase this powerpoint from. What is important to keep in mind is the fact that prevention of ozone layer depletion is so very important because it directly affects the well being of the people. Causes, effects and solutions of ozone layer depletion. Awareness programme on depleting ozone layer ahmedabad. Graphs and diagrams slides to give professional look to you presentation. Be effective with your powerpoint presentations by using our depletion of ozone layer powerpoint presentation template. Ozone absorbs a band of ultraviolet radiation called uvb. Apr 29, 2014 ozone layer plays an important role in absorbing biologically harmful ultraviolet radiation emitted by the sun. Affordable and search from millions of royalty free images, photos and vectors. The level from which it extends outward varies with latitude. Protecting the ozone layer while also preventing climate change. Nearly 500 organizations, teams, and individuals from 40 countries have received stratospheric ozone protection awards for their exceptional leadership, personal dedication, and technical achievements. Depletion to ozone layer depletion does not affect a region or a country.
Displaying powerpoint presentation on the ozone layer formation and depletion available to view or download. These days its easy to check on the local uv index, which tells you. The layer shields the entire earthfrom much of the harmful ultravioletradiation that comes from the sun. Effects and measures to protect ozone layer depletion. Ppt ozone depletion powerpoint presentation free to. Ozone layer and plant with globe or planet earth icon filled vector. It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause. 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. This legally binding international treaty called for participating developed nations to reduce the use of cfcs and other ozone depleting substances. The latter phenomenon is referred to as the ozone hole. Ashes can stay in the stratosphere for about two to five years, and within. 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. The ozone layer was discovered in 19 by the french physicists charles fabry and henri buisson.
The ozone layer refers to a region of earths stratosphere that absorbs most of the suns uv radiation. There are natural processes that create and destroy ozone in the stratosphere. Lets have a look at some of the solutions to ozone layer depletion. Ozone depletion, uv protection issue, arrows and earth, atmosphere vector.
It contains high concentration of ozone o 3 in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. But even a healthy, thick ozone layer doesnt prevent all uvb from reaching the earth. Following is the list of some of the main ozone depleting substances and the sources from where they are released. Easy and instant download editable add and edit content, images printable easy to print custom designs available.
This ozone layer sustains life on the earth by absorbing a great deal of uv ultra violet light radiating out of sun. Unlike oxygen o2, ozone has a strong scent and is blue in color. Basic ozone layer science ozone layer protection us epa. Ozone depletion eric lin, cody lu natalie qin, silvia shi the ozone layer is essential to organisms because it protects them from harmful effects of the. Formation and depletion effect of the montreal protocol on stratospheric cl sunlight incident on earth is very roughly. Colourenhanced pictures of the winterspring polar ozone hole on the united. Ozonedepleting substances ods are synthetic chemicals, which were used. Jul 15, 2019 ozone layer depletion has been one of the major concern for the scientists of the world. Presentation on ozone depletion ozone depletion scribd. Various studies have been undertaken to find out possible solutions. Themes for 1998 powerpoint presentation free to download id. If interested, you can purchase this powerpoint from my online store. The causes, mechanism and bioeffects of ozone layer depletion on humans were addressed.
What are the mechanisms of ozone depletion environmental. In response to this and additional fears about more widespread global ozone depletion, the montreal protocol on substances that deplete the ozone layer was implemented in 1987. This can be harmful to skin, and, thankfully, the ozone protects us from much of it. What we all need to understand is the idea that we all are going to have to face the repercussions of ozone layer depletion. When highenergy ultraviolet rays uvc strike an oxygen. However, the ozone layer is destroyed by manmade chemicals known as ozonedepleting substances ods. The ozone layer prevents all uvc from reaching the earths surface. Ozone in this area is bad because it dirties the air and helps make smog, which is unhealthful to breathe.
Ozone shown to be a natural atmospheric constituent. Download premium images you cant get anywhere else. Depletion of ozone layer editable word template and design. Our ozone layer depletion ppt template is excellent for giving an indepth presentation about such a topic. Ozone layer depletion has been one of the major concern for the scientists of the world. Thats a good thing because uvc would be very harmful to our ecosystems. Mar 21, 2020 ozone depletion, gradual thinning of earth s ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. Download affordable depletion of ozone layer editable powerpoint template now. The atmosphere is mostly transparent to the visible except for scatter. Ozone does not absorb uva light uvb between 280 and 320 nanometers. 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 ozonedepleting substances ods. Depletion of this layer by ozone depleting substances ods will lead to higher uvb levels, which in turn will cause. Attractive features of this depletion of ozone layer word document template. Ozone layer the ozone layer is basically naturally occurring gas in the region of stratosphere where ozone particles are accumulated 2.
Pdf causes of ozone layer depletion and its effects on. The ozone layer is mainly found in the lower portion of the stratosphere. The thinning is most pronounced in the polar regions, especially over antarctica. This is the cause for the nearly 80% of the ozone depletion. Effects of ozone layer depletion the direct result of the ozone layer depletion will be an increase of the amount of uv radiation that will reach the earths surface. Another most feared aspect of pollution is depletion of ozone layer of the stratosphere. Nearly 90% of earths ozone is in the stratosphere and referred to as the ozone layer. Case study on ozone layer ozone depletion chlorofluorocarbon. Administrator created date a free powerpoint ppt presentation displayed as a flash slide show on id.
There, it will absorb almost all ultraviolet light which is harmful to many organisms. No design or tech skills are necessary its free, easy, and awesome. By the usual definition, stratospheric ozone depletion is not an integral part of the process of. Ppt ozone layer depletion authorstream presentation. Ppt 25th anniversary of the montreal protocol on substances. The ozone layer lies approximately 1540 kilometers 1025 miles above the earths surface, in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in earths. Ozone is a gas that is present in the ozone layer in the stratosphere of the earth. In order to create awareness among people regarding the need of ozone layer for our survival, campaigns are being run all over the world. Why the ozone layer is vital to life on earth the ozone layer is a protective shield that blocks the suns harmful ultraviolet rays from reaching the earths surface. A weeklong programme to spread awareness about the ozone layer in the earths atmosphere has been organized at gujarat science city mainly for schoolchildren.
Get our depletion of ozone layer ms word template now for professional business documents with compelling designs and backgrounds. Ppt protection of the ozone layer montreal protocol. Depletion of this layer by ozone depleting substances ods will lead to higher uvb levels, which in turn will cause increased skin cancers and cataracts and potential damage. This quick video discusses the role of the ozone layer and how cfcs can cause ozone depletion. In fact whole world is vulnerable to its after affects. Cfcs, hcfcs, halons, methyl bromide, carbon tetrachloride, and methyl chloroform. Why the hole in the atmospheric ozone layer above us. Ozone layer is also naturally broken down but there is a balance between its formation and natural depletion. The increase in the levels of uv rays lead to high rate of skin cancer and eye related problems. What is the impact of volcanic ash on the ozone layer. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer depletion. In comparison to the base case and scr, hp has the least environmental impact for fossil fuel depletion, global warming, ozone depletion, acidification, photochemical smog, and human toxicity. Find highquality ozone layer stock photos and editorial news pictures from getty images.
Compare now the scr and hp options in terms of the level of nox emissions that they can achieve. As a result the total amount of ozone remains constant. Ozone depletion, gradual thinning of earth s ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. Ozone layer plays an important role in absorbing biologically harmful ultraviolet radiation emitted by the sun. In order to make these campaign more effective, we have gathered a list of 32 ozone layer slogans. Protecting the ozone layer department of the environment. 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. 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 representations. These ashes contain high concentration of bromine and chlorine.
It contains high concentrations of ozone o3 relative to other parts of the atmosphere. Stratospheric ozone protection awards since 1990, epa has recognized outstanding achievement in ozone layer protection. A critical link in protecting climate and the ozone layer. The majority of the atmospheres ozone resides in the stratosphere, with the biggest. 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. For nearly a billion years, ozonemolecules in the atmosphere haveprotected life on earth from theeffects of. The ozone layer and its depletion linkedin slideshare. The ozone in this region is commonly known as the ozone layer. Find powerpoint presentations and slides using the power of, find free presentations research about depletion of ozone layer ppt. The earths ozone layer ozone layerthe region of the stratosphere containing the bulk of atmospheric ozone. Fire extinguishers contain halons and methyl bromide in the form of pesticides can also be also a cause for the depletion.
The week long celebration, includes an illustrative exhibition on the theme save our sky, slide and film show and scientific interaction on the ozone layer which aims to sensitize the students and. Awareness programme on depleting ozone layer ahmedabad news. Update on ozonedepleting substances odss and other gases of. 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 layer depletion powerpoint template sketchbubble. The ozone layerthe ozone layer is a deep layer in thestratosphere, encircling the earth,that has large amounts of ozone in it. The ozone story presentation ozone secretariat unep ozone distribution in the atmosphere scientific background i history 1839.
The term ozone depletion can refer to a number of distinct, but related phenomena. Stratospheric ozone depletion, ultraviolet radiation and. 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. The adobe flash plugin is needed to view this content. Ozone layer depletion cause, effects, and solutions. Case study on ozone layer free download as powerpoint presentation. Download the ozone layer formation and depletion ppt for free. Protocol on substances that deplete the ozone layer. Ppt ozone layer depletion powerpoint presentation free. These ultra violet rays have a destructive effect on humans, marine life, crops and other living creatures. When volcanoes erupt, they produce massive clouds of ashes into the troposphere, and then they drift upward into the stratosphere the upper atmosphere layer where ozone gas protects humans from uv radiation. The danger and prevention of ozone layer depletion. The ozone layer or ozone shield is a region of earths stratosphere that absorbs most of the suns ultraviolet radiation.
The abundance of hfc23 was 22 ppt in 2008, with an annual growth rate of 0. A free powerpoint ppt presentation displayed as a flash slide show on id. There are also springtime polar tropospheric ozone depletion. 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. Nutrition and the epidemiology of cataract and age related mac. Unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major.
Ozone layer is depleting and we must ban the use of substances that are depleting ozone layer. Ozone in the atmosphere isnt all packed into a single layer at a certain altitude above the earths surface its dispersed. Experiments show that ozone strongly absorbs solar ultraviolet uv radiation. Thus, ozone layer depletion has become a major concern among the environmentalists. The ozone layer is simply a region where ozone is more common than it is at other altitudes. Ozone depletion consists of two related events observed since the late 1970s. All of the slides feature hd vectorbased graphics, which allows you to resize images and icons without decreasing the high quality. Ozone layer depletion first captured the attention of the whole world in the latter half of 1970, and since then, a lot of research has been done to find its possible effects and causes.