Global warming also leads to ozone layer depletion. Pdf causes of ozone layer depletion and its effects on. Concern about a depleting ozone layer dates back to the 1970s. Carbon reacts with ozone gas resulting in its depletion in the.
But the one and the most important reason for ozone layer depletion is the. It is also the root cause of people developing health hazards like skin cancer and. This ozone layer sustains life on the earth by absorbing a great deal of uv ultra violet light radiating out of sun. Depletion of the ozone layer over the past four decades has resulted in increased levels of uv light reaching the earth. Ozone depletion causes of ozone layer depletion earth. The main cause of ozone depletion and the ozone hole is manufactured.
The chlorofluorocarbon and the halons are potent ozone depletors. They can kill plankton, which is a major source of food in the oceans food chain. Ozone depletion facts and information national geographic. Causes and effects of ozone layer depletion that are truly. Causes, effects and solutions of ozone layer depletion. Ozone layer is a thin blanketlike layer that spreads over the atmosphere of the earth. The causes, mechanism and bio effects of ozone layer depletion on humans were addressed. Health and environmental effects of ozone layer depletion. Ozone depletion, gradual thinning of earths ozone layer in the upper atmosphere caused by the release of chemical compounds containing. Unlike pollution which has several causes, there is one specific chemical compound that is. 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. A combination of low temperatures, elevated chlorine, and bromine concentrations in the upper stratosphere are responsible for the destruction of ozone. The chemicals components like chlorofluorocarbon, chlorofluorocarbon, hydrochlorofluorocarbon carbons and volatile organic compounds produced from.
Ozone layer depletion causes uv rays to enter the earth. The ozone layer protects the surface of the earth and its phenomena from stray rays from the sun. Various causes and effects of ozone hole conserve energy future. The main things that lead to destruction of the ozone gas in the ozone layer. 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. The ozone layer prevents most harmful uv wavelengths of ultraviolet light uv. We should try to handle ozone layer depletion at an individual level. The ozone layer is responsible for absorbing harmful ultraviolet rays, and thus shielding the earth from its detrimental effects. 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. Ozone depletion consists of two related events observed since the late 1970s.
Ultraviolet rays can also have bad effects on nature. The causes, mechanism and bioeffects of ozone layer depletion on humans were addressed. What are the causes and effects of ozone depletion. Find out what caused the ozone hole, and how the 1989 montreal protocol sought to put an end to ozone depletion.
Ozone depletion, gradual thinning of earths ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities. It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause. Indirect changes caused by uvb such as changes in plant form, how nutrients are distributed within the plant, timing of developmental phases. Water scarcity or water crisis or water shortage is the deficiency of adequate water resources that can meet the water demands for a particular region. The ozone layer is a layer found in the stratosphere and is composed of ozone which is a component of oxygen. Pdf causes of ozone layer depletion and its effects on human. One chlorine molecule from a cfc can destroy up to 100,000 ozone molecules. Increased level of radiation can cause skin cancer to the individuals. The ozone layer helps to protect life from harmful ultraviolet radiation. The ozone layer has been linked to climate change in several studies but it is a different phenomenon. Ozone layer depletion is the thinning of ozone layer that protects the earth. Health and environmental effects of ozone layer depletion epa. Causes of ozone layer depletion and its effects on human.
What are the causes and effects of ozone layer depletion. Ozone depletion is the effect of the cfcs on the ozone layer. Ozone depletion causes and consequences green left. The molecules of chlorofluorocarbons in the stratosphere are broken down by the ultraviolet radiations and release chlorine atoms. Following are some of the points that would help in preventing this problem at a. Ian grimmond ozone layer depletion when you walk outside, there is a pale blue molecule up in the stratosphere that is protecting you every second of every day of your life, this molecule is called ozone. The connection between ozone layer depletion and uvb radiation. It allows only the required doses of the suns solar energy to reach the earths surface. Reduced ozone levels as a result of ozone depletionozone depletiona chemical destruction of the stratospheric ozone layer beyond natural reactions. Ozone depletion is primarily caused by human activities. These are released by industrially produced substances that find their way.
Causes and effects of ozone layer depletion that are. This website addresses stratospheric ozone issues, including the science of ozone depletion, epas regulatory approach to protecting the ozone layer, epaapproved alternatives to ozonedepleting substances, and sun safety. Credible scientific studies have substantiated that the cause of ozone layer depletion is human activity, specifically, humanmade chemicals that contain chlorine. Due to global warming and green house effect most of the heat is trapped in troposphere which is the layer below the stratosphere. But the one and the most important reason for ozone layer depletion is the production and emission of chlorofluorocarbons cfcs. The cfc emissions are on the top in causing the ozone layer hole approximately up to 80% of the entire ozone depletion. With depletion in ozones layer, we humans are more prone to uv rays that reaches the earths surface. Ozone layer plays an important role in the protection of the environment as it blocks the entry of the harmful ultraviolet rays. The exposure to these radiations is severely affecting all life forms on earth, especially the humans. These chemicals are found in cleaning agents, aerosols, insulating foam, and refrigerants. It makes a layer in the atmosphere which acts as a cover to the earth against ultraviolet radiation of the sun. Ozone layer depletion causes, effects and solutions 7. Ozone layer the ozone layer is basically naturally occurring gas in the region of stratosphere where ozone particles are accumulated 2. The main effect of ozone depletion is an increase in uvb rays reaching the earths surface causes.
By tom kelly ozone depletion in the stratosphere, a layer of the atmosphere that extends from 10 to 50 kilometres above the earths surface, is caused by the presence of chlorine and bromine. Two groundbreaking international treaties, the montreal and kyoto protocols, have failed to adequately curb use of the chemicals causing ozone depletion and global warming. Global warming is caused by the greenhouse effect, which is essential to life as we know it on planet earth. The main effect of ozone depletion is an increase in uvb rays reaching the earths surface. Man has tried hard to deploy protective measures towards controlling the ozone layer from depletion,but this is so. Whenever there is a lack of access to potable and fresh water for drinking and sanitation, the situation means that the water is scarce. The ozone layer is responsible for absorbing harmful ultraviolet rays, and preventing them from entering the earths atmosphere. There have been several concerns about ozone depletion. Ozone layer depletion causes increased uv radiation levels at the earths surface, which is damaging to human health. Ozone layer depletion cause, effects, and solutions byjus. The problems and causes associated with ozone depletion arise from human activities. The thinning is most pronounced in the polar regions, especially over antarctica.
Unfortunately, this gives them plenty of time to find their way to the ozone layer. What is alarming is the fact that there is a remarkable decrease over the polar regions of the earth. Ozone layer depletion is one of the major environmental issues which is getting thinner day by day as a. Water scarcity thus pertains to a situation where there is water shortage, water crisis, and the lack of. Ozone depletioncauses, effects, solutions by tim wise on. Ozone layer depletion and climate change in nigeria. Cfcs account for almost 80% of the total depletion of ozone. We also need to be aware of the harmful effects of ozone depletion and how we can handle this vital environmental issue. The chemicals components like chlorofluorocarbon, chlorofluorocarbon, hydrochlorofluorocarbon carbons and volatile organic compounds produced from artificial cooling system, automobiles and factories damages ozone layer. 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.
Ozone depletion is allowing the uv radiation to earth surface. The ozone layer is a deep blanket in the stratosphere made up of comparatively high concentration of the ozone. In our present study, we shall discuss how ozone layer depletion is affecting human health and we shall also discuss some recommendations to minimize ozone depletion and its adverse effects on human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders. These are released by soaps, solvents, spray aerosols, refrigerators, airconditioners, etc. Ozone layer depletion leads to entry of all bandwidth of sunlight including ultraviolet that could be reflected by ozone layer. What are the negative affects of the ozone depletion answers. Steps taken by india for protection of ozone layer 14 9. The ozone layer protects living things from harmful ultraviolet rays from the sun. Global warming and ozone layer depletion are two different problems see the sidebar misconceptions about global atmospheric change on page 95. The envelope of air or different types of gases surrounding the earth is known as atmosphere. Carlos juarez, andrew berry, panchalee perera, lisa khairy what is ozone depletion.
Stratospheric ozone is constantly being created and destroyed through natural cycles. Causes, effects and solutions of ozone layer depletion earth. Ozone depletion occurs when the natural balance between the production and destruction of stratospheric ozone is tipped in favour of destruction. It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause of said depiction. Ozone layer depletion cause, effects, and solutions. There are many causes for ozone depletion, but the most important process in both trends is. But through domestic and international action, the ozone layer is healing and should fully recover by about 2065. One of the main reasons for the widespread concern about. This layer protects us from harmful uv rays ultraviolet rays produced from sun.
Ozone layer depletion, its causes, effects and control. Ozone layer depletion is a serious problem facing the earth surface today and its ravaging effect on climate, lives and physical environment are global. Meanwhile, worldwide research into the knockon effects of overexposure to uv light are well publicised such as the australian governments slip,slap,slop campaign to use sunscreen to protect from skin cancer. Chlorofluorocarbons or the cfc are the main cause of ozone layer depletion. The ozone layer is a belt of the naturallyoccuring gas ozone that sits. Causes, effects and solutions to water scarcity earth. Hence, we should spread awareness among all are peergroups about the causes of ozone layer depletion. The ozone depletion causes skin cancer, skin evoked rash, and cataracts. On this day of september 16, marked as the ozone layer day, let use try to know some of the basics of ozone layer like what is ozone layer, importance of ozone layer, how ozone layer gets depleted, effects of depletion of ozone layer, how to prevent depletion of ozone layer. Learn more about the process, causes, and effects of ozone layer depletion. Ozone layer and causes, effects and solutions to ozone depletion. Effects of ozone depletion for humans and the environment.
Effects and measures to protect ozone layer depletion. Ozone layer depletion and its effects 1575 words 7 pages. Let us have a detailed look at the various causes and effects of ozone layer depletion. Youve likely heard about the ozone hole or thinning of the ozone layer, but you may not know what causes these problems. Hence afterwards that uv rays expedite the melting of ice caps surrounding antartica in our scenario. Another most feared aspect of pollution is depletion of ozone layer of the stratosphere. However, various factors have led to the depletion and damage of this protective layer. One of the biggest phenomenons that marked the late 70s was the observation of the depletion of the ozone layer.
If you measure the effects of ozone depletion by the number of people affected, there are more people. Ozone layer depletion can have some serious consequences on effects of human health, plants, marine ecosystems, biogeochemical cycles and earths environment. This causes more ozone to be destroyed than created causing a hole in the ozone that allows the suns harmful ultraviolet rays to. Ozone layer is important because it prevents too many harmful ultra violet rays from reaching earth.
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