Do ozone depleting gases and their substitutes have an effect on climate. The ozone layer was discovered in 19 by the french physicists charles fabry and henri buisson. Ozone depletion publications, references and resources. It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause of said depiction. Low temperatures, increase in the level of chlorine and bromine gases in the upper stratosphere are some of the reasons that leads to ozone layer depletion. This proves ozone depletion is a big issue that needs attention.
Ozone layer depletion, its causes and its effects ozone. Pdf this study was conducted at university of gujrat during 20142015 as a term paper for master of philosophy. Ozone layer depletion ozone layer depletion is the gradual thinning of the earths ozone layer in the upper atmosphere caused due tho release of chemical compounds containing gaseous bromine or chlorine from industries or other human activities. A polar vortex is a large pocket of very cold air, typically the coldest air in the northern hemisphere, which sits over the polar region during the winter season. Unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major human activity. The ozone layer was discovered in 19 by the french physicists. Scribd is the worlds largest social reading and publishing site.
Ozone layer and causes, effects and solutions to ozone. Oct 27, 2017 the effects of ozone depletion on plants and animals massive amounts of uvb radiation that penetrate our atmosphere do not only affect humans, but also animals and plants. It is an essential factor for many global, biological and environmental phenomena. Hence, we should be aware and actions must be taken to ensure that ozone layer is not destroyed. The severe depletion of the ozone layer in any particular area is called ozone hole. Ozone layer depletion leads to decrease in ozone in the stratosphere and increase in ozone present in the lower atmosphere. Find out what caused the ozone hole, and how the 1989 montreal. Ozone layer depletion essay sample free college essay examples.
One of the main reasons for the widespread concern about depletion of the ozone layer is the anticipated increase in. Ozone layer is a thin blanketlike layer that spreads over the atmosphere of the earth. Experts blame ozone layer depletion on manmade chem. They can kill plankton, which is a major source of food in the oceans food chain. 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. Depletion of ozone layer essaytyper the depletion of the ozone layer. This publication provides basic information about groundlevel and highaltitude ozone. The problems and causes associated with ozone depletion arise from human activities. The level from which it extends outward varies with latitude. Hence, cfcs are transporting agents that are responsible for damaging the ozone layer. Find out what caused the ozone hole, and how the 1989 montreal protocol sought to put an end to ozone depletion. Why the hole in the atmospheric ozone layer above us.
The ozone layer is responsible for absorbing harmful ultraviolet rays, and preventing them from entering the earths atmosphere. Presentation on ozone depletion linkedin slideshare. Reducing the use of ozone depletion substances ods. Ozone depletion is primarily caused by human activities. Ozone layer importance, depletion, effects and protection of. Good up high, bad nearby pdf, 2 pp, 91 kb ozone acts as a protective layer high above the earth, but it can be harmful to breathe. Causes, effects and solutions of ozone layer depletion.
Learn what cfcs are, how they have contributed to the ozone hole, and how the 1989 montreal. While several substances were addressed, chcs and hcfcs were the main ones that the international. The evaporation of surface water through the stomata of leaves increases, which results in the decreased moisture content of the soil. Ozone layer depletion definition, causes, solutions toppr.
There are many situations where human activities have. The montreal protocol is an international agreement to address the causes of ozone depletion. However, these cause a very nominal contribution to the ozone layer depletion which is near about 1 to 2 percent and therefore these. Ozone depletion is allowing the uv radiation to earth surface.
The causes, mechanism and bio effects of ozone layer depletion on humans were addressed. The ozone layer thus plays an important role by preventing the harmful uv radiations from penetrating into the earths lower atmosphere the troposphere. The ozone layer protects the surface of the earth and its phenomena from stray rays from the sun. 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. Protection against depletion of stratospheric ozone by chlorofluorocarbons. Ozone layer importance, depletion, effects and protection. Ppt ozone layer depletion powerpoint presentation free to. May 23, 2019 ozone is a paleblue gas that forms a layer in the stratosphere of our atmosphere called ozone layer. Pdf causes of ozone layer depletion and its effects on human. This is an image that shows ozone depletion because of the 3 rays that are poking through the layer, which represents the hole in the ozone layer.
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. Nearly 90% of earths ozone is in the stratosphere and referred to as the ozone layer. Global warming is caused by the greenhouse effect, which is essential to life as we know it on planet earth. Ozone layer depletion article about ozone layer depletion. Ozone layer protection european commission europa eu. The thinning is most pronounced in the polar regions, especially over antarctica. 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. Let us have a detailed look at the various causes and effects of ozone layer depletion. The main effect of ozone depletion is an increase in uvb rays reaching the earths surface. Causes of ozone layer depletion and its effects on human.
It allows only the required doses of the suns solar energy to reach the earths surface. Warming of the atmosphere is also expected to cause changes in. Presence of ozone in the lower atmosphere is considered as a pollutant and a greenhouse gas. These chemicals are found in cleaning agents, aerosols, insulating foam, and refrigerants. It will magnify the effects of ultraviolet rays on human health. Causes and effects of ozone layer depletion that are. A free powerpoint ppt presentation displayed as a flash slide show on id. Sep 20, 2016 ozone depletion ozone layer depletion, is simply the wearing out reduction of the amount of ozone in the stratosphere. Ozone layer depletion cause, effects, and solutions. Additional copies may be obtained, free of charge, from.
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. One chlorine molecule from a cfc can destroy up to 100,000 ozone molecules. Ozone layer depletion essay sample free college essay. 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. Jan 07, 2016 polar vortex in the previous posts, we have studied about tropical cyclones and extra tropical cyclones temperate cyclone. The ozone layer helps to protect life from harmful ultraviolet radiation.
Ozone layer depletion synonyms, ozone layer depletion pronunciation, ozone layer depletion translation, english dictionary definition of ozone layer depletion. May 03, 2017 ozone layer is a thin blanketlike layer that spreads over the atmosphere of the earth. It contains high concentrations of ozone o3 relative to other parts of the atmosphere. Ultraviolet rays can also have bad effects on nature.
Ozone layer the ozone layer is basically naturally occurring gas in the region of stratosphere where ozone particles are accumulated 2. Ozone layer depletion is one of the major environmental issues which is getting thinner day by day as a result of increasing pollution. The causes, mechanism and bioeffects of ozone layer depletion on humans were addressed. Pdf causes of ozone layer depletion and its effects on. The depletion of the ozone describes two closely related but distinct phenomena which have been repeatedly observed since the latter 1970s. Ozone in the lower atmosphere contributes to global warming and climate change. Researchers indicate that many of the effects of ozone depletion on human health tend to apply for animals, too. What are the causes and effects of ozone depletion, and. Ozone layer and causes, effects and solutions to ozone depletion. Ozone depletion free math worksheets for kids kiddy math. Mar 12, 2019 ozone layer depletion is the destruction of ozone gas of upper atmospheric layer stratosphere, caused by substances formed from breakdown of.
There have been several concerns about ozone depletion. Ozone depletion and climate change environment canada. Environmental effects of ozone depletion montreal protocol. Generally, we find thinning or depletion of the ozone layer to the extent of ozone hole creation over the southern pole i.
Ozone layer depletion, its causes, effects and control. Ozone layer depletion causes, effects and solutions 7. It is found largely in the stratosphere that extends from about 6 km at the poles and 17 km at the equator to about 50 km above the earths surface. The chlorofluorocarbon and the halons are potent ozone depletors. It is present in traces less than 1 ppm in the atmosphere. It is found that the ozone layer gets affected by some natural causes that are sunspots and stratospheric winds. The origins of uncertainty about the factors that affect the ozone layer are, as seen, very diverse. Causes of ozone depletion ozone depletion occurs when the natural balance between the production and destruction of stratospheric ozone is tipped in favour of destruction.
Learn more about the process, causes, and effects of. In the 1980s, scientists began finding clues that the ozone layer was being depleted. The ozone layer has historically protected the earth from the harmful uv rays, although in recent decades this protection has diminished due to stratospheric ozone depletion. Unlike oxygen o2, ozone has a strong scent and is blue in color. Ozone depletion consists of two related events observed since the late 1970s. Man has tried hard to deploy protective measures towards controlling the ozone layer from depletion,but this is so. The ozone layer is mainly found in the lower portion of the stratosphere. The main things that lead to destruction of the ozone gas in the ozone layer. This layer absorbs about 99% harmful solar radiations like uv rays, x rays, gamma rays etc. Far above earths surface, the ozone layer helps to protect life from harmful ultraviolet radiation. Although natural phenomena can cause temporary ozone loss, chlorine and bromine released from manmade compounds such as cfcs are now accepted as the main cause of this. Learn ozone depletion effects with free interactive flashcards.
Causes and effects of ozone layer depletion that are truly dangerous. It protects life on earth from the suns ultraviolet uv rays. Ozone depletion facts and information national geographic. Solution on ozone layer depletion september 16 was voted the world ozone day in the year 1994 by the united nations general assembly. What are the causes and effects of ozone depletion. What is an ozone hole and causes and effects of ozone. Feb 12, 2018 far above earths surface, the ozone layer helps to protect life from harmful ultraviolet radiation. Concentrations of ozone depleting substances are expected to decline over the coming century, bringing a gradual. Polar vortex in the previous posts, we have studied about tropical cyclones and extra tropical cyclones temperate cyclone. The ozone layer refers to a region of earths stratosphere that absorbs most of the suns uv radiation. The proteins cells in plants undergo harmful mutations, all due to ultraviolet radiations.
The ozone layer is made up of ozone molecules, like ozzy ozone, and forms a thin shield high up in the sky. Choose from 500 different sets of ozone depletion effects flashcards on quizlet. But the one and the most important reason for ozone layer depletion is the. Humans rely heavily on the absorption of ultraviolet b rays by the ozone layer because uvb radiation causes skin cancer and can lead to genetic damage. Its effect, however, has been global, and is considered one.
Ozone o3 is a stratospheric layer that plays important role in providing support to humans for their survival. Unfortunately, this gives them plenty of time to find their way to the ozone layer. Ozone layer depletion, its causes, effects and control measures. Here we will study polar vortex circumpolar vortex which is a polar cyclone. Ozone layer depletion is the destruction of ozone gas of upper atmospheric layer stratosphere, caused by substances formed from breakdown of. Effects of ozone depletion ozone depletion, ozone layer. A region of the atmosphere lying mostly in the stratosphere, between about 15 and 30 kilometers in altitude, containing a relatively high concentration. Man has tried hard to deploy protective measures towards controlling the ozone layer. Ozone depletion was determined to be occuring primarily over the antarctic region, the south pole.
The main cause of 0 3 layer depletion is the presence of chlorine containing gases primarily cfc s and related hydrocarbons due to the presence of uv light, these gases dissociate and release chlorine atom, which then leads to o 3 destruction. The latter phenomenon is referred to as the ozone hole. Ozone layer depletion, its causes and its effects free download as powerpoint presentation. Ozone is a paleblue gas that forms a layer in the stratosphere of our atmosphere called ozone layer. The main effect of ozone depletion is an increase in uvb rays reaching the earths surface causes. Global warming and ozone layer depletion are two different problems see the sidebar misconceptions about global atmospheric change on page 95. Ozone depletion is largely a result of manmade substances.
The thinning or reduction of ozone depletion is most prominent in the polar regions, especially over antarctica. The first report of depletion in o 3 layer came out in the 1980s by an atmospheric scientist in antarctica. Ozone absorbs a band of ultraviolet radiation called uvb. Ozone is a molecule consisting of three oxygen atoms o3 and has the property of being highly toxic because of its radioactivity. Questions and answers about the environmental effects of the ozone layer depletion and. Jan 20, 2010 the montreal protocol is an international agreement to address the causes of ozone depletion. The chlorine and bromine free radicals react with ozone molecule and destroy their molecular structure, thus depleting the ozone layer. Learn more about the process, causes, and effects of ozone layer depletion. Apr 18, 2019 the ozone layer helps to protect life from harmful ultraviolet radiation. Ozone layer depletion causes and effects of ozone layer. This, in turn, will lead to the breakdown of ozone. The chlorine ion catalyzing o 3 depletion can take place in the gaseous phase, but it is dramatically.