Unlike oxygen o2, ozone has a strong scent and is blue in color. It is very essential as it prevents nearly 99% o f the uv. Between 20 and 50 kilometers above the earths surface. The ozone layer refers to a region of earths stratosphere that absorbs most of the suns uv radiation. 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. Ozone layer depletion definition of ozone layer depletion. It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause. Causes of ozone layer depletion ozone depletion substances role of cfcs. 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 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. Thus, ozone layer depletion has become a major concern among the environmentalists. Ppt ozone depletion powerpoint presentation free to. Ozone depletion free download as powerpoint presentation. Ozone layer of the earths atmosphere protects us from the harmful solar radiation. Professional depletion of ozone layer editable powerpoint. Apr 29, 2014 ozone layer plays an important role in absorbing biologically harmful ultraviolet radiation emitted by the sun. Ozone layer the ozone layer is basically naturally occurring gas in the region of stratosphere where ozone particles are accumulated 2. Ozone gas is perceptibly blue in colour and has a characteristic pungent smell. 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. 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. The level from which it extends outward varies with latitude.
Ozone layer depletion penn state college of earth and. Ppt ozone layer depletion authorstream presentation. The term ozone depletion can refer to a number of distinct, but related phenomena. If each chlorine atom released from a cfc molecule destroyed only one ozone molecule, cfcs would pose very little threat to the ozone layer. 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 depletion free math worksheets for kids kiddy math. The ozone layer is mainly found in the lower portion of the stratosphere. The causes, mechanism and bioeffects of ozone layer depletion on humans were addressed. All of the slides feature hd vectorbased graphics, which allows you to resize images and icons without decreasing the high quality. A close look at the evolution at the life on earth reveals that initially the. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer. Stratospheric ozone protection awards since 1990, epa has recognized outstanding achievement in ozone layer protection.
Uv gets absorbed in the stratosphere by molecular oxygen, which splits into 2. The ozone in the stratosphere is continually being made and broken by ultraviolet light in the ozone oxygen cycle. See more ideas about ozone depletion, ozone layer and environmental science. Find powerpoint presentations and slides using the power of, find free presentations research about depletion of ozone layer ppt. The latter phenomenon is referred to as the ozone hole. Jul 15, 2019 ozone layer depletion has been one of the major concern for the scientists of the world. 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. Since about the 1970s, there has been a decrease in total volume of the ozone in the ozone layer, of about 4%, per decade.
Nov 20, 2017 the ozone in the stratosphere is continually being made and broken by ultraviolet light in the ozone oxygen cycle. Another most feared aspect of pollution is depletion of ozone layer of the stratosphere. Ozone depletion displaying top 8 worksheets found for this concept some of the worksheets for this concept are activity pack for key stages 2 3, tthe ozone hole and global he ozone hole and global global, national aeronautics and the ozone hole space administratio n, the good the bad and the ugly of ozone, causes of ozone layer depletion and its effects on human, ozone. Cfcs get banned in 1974 scientists sherry rowland and mario molina discovered the link between the depletion of the ozone layer and cfcs. Give your memorable depletion of ozone layer presentation and build your crawd. Presentation on ozone depletion linkedin slideshare. The ongoing recovery of the planets ozone layer is being significantly affected by volcanic eruptions. Ozone depleting substances are the substances such as chlorofluorocarbons, halons, carbon tetrachloride, hydrofluorocarbons, etc. Causes of ozone layer depletion and its effects on human. Ppt ozone layer depletion powerpoint presentation free. It shields the entire earth from much of the harmful uv radiation that.
Our ozone layer depletion ppt template is excellent for giving an indepth presentation about such a topic. Ozone layer depletion article about ozone layer depletion. Unfortunately, cfcs can eventually find their way into the earths atmosphere and the ozone layer. However, mounting evidence suggests that ozone layer is diminishing rapidly. Jul 19, 2014 this power point presentation is mainly focused on todays most. Ozone layer and ozone layer depletion powerpoint free. The ozone layer forms a most important part of the earths stratosphere as it can absorb most of the uv radiation and prevent it from reaching the surface of the earth. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer depletion. Ozone layer depletion powerpoint template sketchbubble. Project report on ozone depletion environmental pollution.
Ozone depletion ozone depletion chlorofluorocarbon. This powerpoint presentation will guide the students through a description of the earths ozone layer and the concept behind ozone depletion. Free atmospheric lesson ideas this atmospheric layer balloon uses both. It contains some videos and gif at thte end from an external source. Effects and measures to protect ozone layer depletion.
Free chlorine cl atoms then react with ozone molecules, taking one oxygen atom to form chlorine monoxide clo and leaving an oxygen molecule o. Evs global warming, ozone depletion ppt free download as powerpoint presentation. Download premium images you cant get anywhere else. Nearly 90% of earths ozone is in the stratosphere and referred to as the ozone layer. Ozone layer depletion synonyms, ozone layer depletion pronunciation, ozone layer depletion translation, english dictionary definition of ozone layer depletion. The ozone layer is a layer of the upper atmosphere that blocks out harmful uv rays. No design or tech skills are necessary its free, easy, and awesome. Fire extinguishers contain halons and methyl bromide in the form of pesticides can also be also a cause for the depletion. Our powerpoint presentation about ozone depletion, its effects and its causes. This ozone layer sustains life on the earth by absorbing a great deal of uv ultra violet light radiating out of sun. As a result the total amount of ozone remains constant.
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. Ozone absorbs a band of ultraviolet radiation called uvb. A region of the atmosphere lying mostly in the stratosphere, between about 15 and 30 kilometers in altitude, containing a relatively high concentration. 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. The uploader spent hisher valuable time to create this depletion of ozone layer powerpoint presentation slides, to share hisher useful content with the world. British science teams in antarctica observe 10% decline in o 3 layer us scientists relying on toms total ozone mapping spectrometer measurements from space claim to observe nothing. Nearly 500 organizations, teams, and individuals from 40 countries have received stratospheric ozone protection awards for their exceptional leadership, personal dedication, and technical achievements. Ppt ozone layer depletion powerpoint presentation, free. Ozone layer is also naturally broken down but there is a balance between its formation and natural depletion.
Ozone in this area is bad because it dirties the air and helps make smog, which is unhealthful to breathe. Download affordable depletion of ozone layer editable powerpoint template now. Evs global warming, ozone depletion ppt ozone depletion. To be able to explain how the ozone layer protects the earth from harmful ultraviolet uv radiation and explain how ozone depletion takes place. Be effective with your powerpoint presentations by using our depletion of ozone layer powerpoint presentation template. The majority of the atmospheres ozone resides in the stratosphere, with the biggest. Depletion of ozone layer powerpoint ppt presentation slides. Ozone is formed by photochemical reaction, followed by three body reaction. Ozone depletion simple english wikipedia, the free. Find highquality ozone layer stock photos and editorial news pictures from getty images. View and free download depletion of ozone layer powerpoint ppt presentation slides. 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.
Ozone depletion ozone depletion chlorofluorocarbon free. Depletion of ozone layer powerpoint template is one of the. Ozone depletion consists of two related events observed since the late 1970s. It contains high concentrations of ozone o3 relative to other parts of the atmosphere. The ozone in the stratosphere is continually being made and broken by ultraviolet light in the ozoneoxygen cycle. There are also springtime polar tropospheric ozone depletion. Following is the list of some of the main ozone depleting substances and the sources from where they are released. A free powerpoint ppt presentation displayed as a flash slide show on id. Ozone depletion, gradual thinning of earths ozone layer caused by the release. One of the main reasons for the widespread concern. 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. There, it will absorb almost all ultraviolet light which is harmful to many organisms. Ozone layer depletion causes affecting factors ozone hole etc.
Scientists have found a huge gape in the ozone layer over antarctica. Ozone layer depletion has been one of the major concern for the scientists of the world. This is apparently found in the lowest region of the stratosphere. View and download powerpoint presentations on depletion of ozone layer ppt. The third body m absorbs the excess energy liberated by the above reaction and there by stabilise the o 3 ozone molecule.
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. Ozone layer and ozone layer depletion powerpoint free handout. This ozone layer filters out the harmful uv rays from entering in to the earths atmosphere thus it protects the living organisms. Ozone layer definition of ozone layer by the free dictionary. Ozone is a gas that is present in the ozone layer in the stratosphere of the earth. Once they get there they destroy ozone molecules and cause the ozone layer to become depleted or thinner. Ozone layer depletion cause, effects, and solutions. Cfcs, hcfcs, halons, methyl bromide, carbon tetrachloride, and methyl chloroform. British science teams in antarctica observe 10% decline in o 3 layer us scientists relying on toms total ozone. The separate section of the criminal code proposes further improvements of the existing legal solutions and introduces new criminal offences such as. Mathew mokhtarzadeh, yusei koizumi, alex kim, justin kim.
Pdf causes of ozone layer depletion and its effects on. Why the hole in the atmospheric ozone layer above us. The bill also envisages broader definitions of the terms victim, material benefit and bribe. Ozone depletion ozone layer depletion, is simply the wearing out reduction of the amount of ozone in the stratosphere.
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