Why the hole in the atmospheric ozone layer above us. Give your memorable depletion of ozone layer presentation and build your crawd. Pdf atmospheric ozone layer depletion and its impact. Ppt ozone depletion powerpoint presentation free to. It shields the entire earth frommuch of the harmful uv radiationthat comes from the sun 3. Evs global warming, ozone depletion ppt ozone depletion. Ozone layer depletion is one of the most serious problems faced by our planet earth. Ozone is a colourless gas which is found in the stratosphere of our upper atmosphere. On this page you can read or download mcq on environmental pollution depletion ppt in pdf format. There are natural processes that create and destroy ozone in the stratosphere. Ozone layer depletion, its causes and its effects scribd.
But good news is that most of the harmful uv radiation is absorbed by a layer of ozone gas 20 50 km above the earth. With less ozone in the atmosphere, more ultraviolet radiation strikes earth, causing more skin cancer, eye damage, and possible harm to crops. Ppt ozone depletion powerpoint presentation free to download id. Scientists have found a huge gape in the ozone layer over antarctica. The third body m absorbs the excess energy liberated by the above reaction and there by stabilise the o 3 ozone molecule. Fire extinguishers contain halons and methyl bromide in the form of pesticides can also be also a cause for the depletion. The level from which it extends outward varies with latitude. 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. The causes, mechanism and bioeffects of ozone layer depletion on humans were addressed.
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 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. Ozone absorbs a band of ultraviolet radiation called uvb. Cfcs, hcfcs, halons, methyl bromide, carbon tetrachloride, and methyl chloroform. Ozone layer depletion ozone depletion is the seasonal loss of a large swath of our stratospheric ozone above antartica, as well as the general degradation of this protective layer around the globe. Be effective with your powerpoint presentations by using our depletion of ozone layer powerpoint presentation template. The major culprit in causing ozone depletion is cfc chlorofluorocarbon a highly stable gaseous chemical that we call it as freon which is used in the refrigerators and other. It is also one of the prime reasons which are leading to global warming. Presentation on ozone depletion linkedin slideshare.
The ozone layer was discovered in 19 by the french physicists charles fabry and henri buisson. The increase in the levels of uv rays lead to high rate of skin cancer and eye related problems. Scribd is the worlds largest social reading and publishing site. Ozone layer of the earths atmosphere protects us from the harmful solar radiation. Ozone layer depletion cause, effects, and solutions. How large is the depletion of the global ozone layer. Ozone layer depletion is one of the major environmental issues which is getting thinner day by day as a. The properties of ozone layer were explored by the british. The adobe flash plugin is needed to view this content. Between 20 and 50 kilometers above the earths surface absorbs most of the harmful uv light from sunlight before it reaches the earths surface ozone depletion. All of the slides feature hd vectorbased graphics, which allows you to resize images and icons without decreasing the high quality. What is ozone ozone is a molecule made of 3 atoms of oxygen ozone is a bluish gas ozone helps absorbs harmful uv radiation from the sun.
The ozone layer is a layer of the upper atmosphere that blocks out harmful uv rays. 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. 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. It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause. 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. This ozone layer filters out the harmful uv rays from entering in to the earths atmosphere thus it protects the living organisms. Our ozone layer depletion ppt template is excellent for giving an indepth presentation about such a topic.
Causes, effects and solutions of ozone layer depletion. Ozone layer depletion, its causes and its effects free download as powerpoint presentation. Total bromine from halons has decreased from a peak of 8. This powerpoint presentation will guide the students through a description of the earths ozone layer and the concept behind ozone depletion. A close look at the evolution at the life on earth reveals that initially the. It contains high concentrations of ozone o3 relative to other parts of the atmosphere. Ozone layer is a thin, fragileshield that contains relatively highconcentrations of ozone. Download premium images you cant get anywhere else.
Ozone layer and ozone layer depletion powerpoint free. Project ozone layer depletion pdf the stratospheric ozone layer forms a thin shield in the upper atmosphere, protecting life on earth from. The thickness of the polar stratospheric ozone layer depends. Ozone layer is also naturally broken down but there is a balance between its formation and natural depletion. 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 is the process of destruction of the ozone layer which can cause adverse effects on the living forms by many pollutants releases out from the vehicles, industries etc. Far above earths surface, the ozone layer helps to protect life from harmful ultraviolet radiation. View and download powerpoint presentations on depletion of ozone layer ppt. View and free download depletion of ozone layer powerpoint ppt presentation slides. Ppt ozone layer depletion powerpoint presentation, free. In fact whole world is vulnerable to its after affects. As a result the total amount of ozone remains constant. However, mounting evidence suggests that ozone layer is diminishing rapidly. Unlike oxygen o2, ozone has a strong scent and is blue in color.
The ozone layer refers to a region of earths stratosphere that absorbs most of the suns uv radiation. The ozone layer is mainly found in the lower portion of the stratosphere. Ozone layer depletion has been one of the major concern for the scientists of the world. Thus, ozone layer depletion has become a major concern among the environmentalists. Causes of ozone layer depletion and its effects on human. Ozone depletion and climate change are linked in a number of ways, but.
Ppt ozone layer depletion authorstream presentation. The latest ozone layer depletion news is included at the foot of the page. Do changes in the sun and volcanic eruptions affect the ozone layer. A free powerpoint ppt presentation displayed as a flash slide show on id. The chlorofluorocarbon and the halons are potent ozone. Nearly 90% of earths ozone is in the stratosphere and referred to as the ozone layer. Its detrimental to our world, and if it is fixed then it will be easier for countries, people, and wildlife globally to thrive. Ozone layer depletion powerpoint template sketchbubble. Ozone layer the ozone layer is basically naturally occurring gas in the region of stratosphere where ozone particles are accumulated 2. A simple example is ozone depletion in the upper stratosphere leading to lower. The ozone layer is a belt of the naturallyoccuring gas ozone that sits at an altitude of between 15 and 30 kilometers above the earth. Ozone is present high in our atmosphere as a gas, and molecules of ozone absorb ultraviolet uv light emitted by our sun. Ozone is formed by photochemical reaction, followed by three body reaction. Ozone layer depletion causes, effects and solutions 7.
Easy to download and edit, the ozone layer depletion powerpoint template has hd graphics. Following is the list of some of the main ozone depleting substances and the sources from where they are released. Project report on ozone depletion environmental pollution. Pdf causes of ozone layer depletion and its effects on.
The ozone layer, the ozone hole several good ozone, bad ozone. Uv gets absorbed in the stratosphere by molecular oxygen, which splits into 2. 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. Ppt ozone layer depletion powerpoint presentation free.
More recently, fears have emerged about significant ozone depletion over the arctic, closer to the more populous regions of the northern hemisphere. Ozone depleting substances are the substances such as chlorofluorocarbons, halons, carbon tetrachloride, hydrofluorocarbons, etc. Ozone and environment ozone o3 a gas composed of three atoms of oxygen bluish gas that is harmful to breathe nearly 90% of the earth sponsored links displaying powerpoint presentation on ozone layer depletion available to view or download. An ozone hole would approximate to an area where the ozone concentration drops to an average of around 100. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer depletion. Chances of fatalities from cancer, food growth, or animal extinctions, will be lowered. 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. The atmosphere, environmental science, pollution, global warming.
Find highquality ozone layer stock photos and editorial news pictures from getty images. The antarctic ozone hole is recovering, while continuing to occur every. The ozone in the stratosphere is continually being made and broken by ultraviolet light in the ozoneoxygen cycle. The thinning is most pronounced in the polar regions, especially over antarctica. Ozone layer depletion penn state college of earth and. Ozone depletion chapter 2 ozone depletion chapter 2 ozone layer a layer in the stratosphere that is made of ozone o3 absorbs ultraviolet light from the sun. Depletion to ozone layer depletion does not affect a region or a country. Ozone depletion is an issue that is vital to be fixed.
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