Ozone layer depletion, its causes and its effects free download as powerpoint presentation. Depletion of ozone layer has been found to be much more acute in polar region particularlyantartic south pole than in other parts of the earth. With less ozone in the atmosphere, more ultraviolet radiation strikes earth, causing more skin cancer, eye damage, and possible harm to crops. Depletion to ozone layer depletion does not affect a region or a country. Enter your mobile number or email address below and well send you a link to download the free kindle app.
It is revealed that introduction of chloroflourocarbons cfcs in the environment is the most rated cause. Acid rain, greenhouse effect, global warming, ozone layer. It is also one of the prime reasons which are leading to global warming. As a result, it is creating alarming situations like ozone layer depletion, global warming and acid rains sivasakthivel and siva kumar reddy, 2011. It shields the entire earth frommuch of the harmful uv radiationthat comes from the sun 3. Introduction to acid rain and the ozone print acid rain is a serious environmental problem around the world, particularly affecting asia, europe, and large parts of the u. Nearly 500 organizations, teams, and individuals from 40 countries have received stratospheric ozone protection awards for their exceptional leadership, personal dedication, and technical achievements. The ozone layer in the stratosphere is thin but powerful. Effects of acid rain on materials, visibility and human health. Acid rain as the name suggests can be said to be the precipitation of acid in the form of rain in the simplest manner.
It means that it possesses elevated levels ofhydrogen ions low ph. Mass extinction the result of acid rain and ozone loss. Climate change is the greatest threat facing our planet today. Cfcs nonflammable nontoxic trap heat good insulators. Air turbulence absence of n2o nitrous oxide in these. Introduction to ozone depletion acid rain ozone hole.
The level of acidity can be determined using hightech devices or using litmus paper. Sun rays enter trough the atmosphere but some of them cant leave because of some. This, in turn, will lead to the breakdown of ozone. Jul, 2017 ozone layer depletion the emission of ods account for roughly 90% of total depletion of ozone layer in stratosphere. Climate is the average weather at a given point and time of year, over a long period typically 30 years. Ozone layer depletion causes, effects and solutions 7. The layer of ozone gas is what which protects us from the harmful ultraviolet radiations of the sun. Causes, effects and solutions of ozone layer depletion. Acid rain pollution global warming ozone depletion rain forest destruction slide 5. Ppt ozone layer depletion powerpoint presentation free. Ozone layer depletion is one of the most serious problems faced by our planet earth. Why the hole in the atmospheric ozone layer above us. While ozone depletion is more difficult to model than acid rain, their results suggest that a mix of gases released into the atmosphere may have destroyed 5 to 65 percent of the ozone layer, substantially increasing species exposure to ultraviolet radiation.
The first report of depletion in o 3 layer came out in the 1980s by an atmospheric scientist in antarctica. 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. The causes, mechanism and bioeffects of ozone layer depletion on humans were addressed. Lets have a look at some of the solutions to ozone layer depletion. Environment the air, water, soil, minerals, organisms, and. The latter phenomenon is referred to as the ozone hole.
Start studying global warming, acid rain, and ozone depletion. Global warming, acid rain, and ozone depletion quizlet. The united states is called upon to reduce emissions of so2 and nox, especially from coalburning power plants. Ppt save our planet earth powerpoint presentation free. Ozone layer depletion cause, effects, and solutions. 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. Following is the list of some of the main ozone depleting substances and the sources from where they are released. Nov 20, 2017 the ozone in the stratosphere is continually being made and broken by ultraviolet light in the ozone oxygen cycle. Nov 26, 20 while ozone depletion is more difficult to model than acid rain, their results suggest that a mix of gases released into the atmosphere may have destroyed 5 to 65 percent of the ozone layer, substantially increasing species exposure to ultraviolet radiation.
Ozone layer depletion has been one of the major concern for the scientists of the world. 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 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. Ozone layer depletion is one of the major environmental issues which is getting thinner day by day as a.
The ozone layer is one layer of the stratosphere, the second layer of the earths atmosphere. More recently, fears have emerged about significant ozone depletion over the arctic, closer to the more populous regions of the northern hemisphere. Due to prolonged cold climate, drop of temperature to 90 oc during winter and formationof stratospheric clouds. Save our planet earth is the property of its rightful owner. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Stratospheric ozone protection awards since 1990, epa has recognized outstanding achievement in ozone layer protection. Ozone depletion consists of two related events observed since the late 1970s. Acid rain and ozone depletion helped make the great dying great climate model simulates eruptions during the endpermian mass extinction. This site is like a library, use search box in the widget to get ebook that you want. The greatest ozone depletion occurred near the poles. Ozone layer depletion is one of the major environmental issues which is getting thinner day by day as a result of increasing pollution. Widespread rain as acidic as lemon juice and the destruction of as much as 65% of the ozone layer may have played a major role in the largest mass extinction in the fossil record.
There is a burgeoning need to reduce the production of industrial products causing ozone depletion and global warming. Ozone layer depletion, its causes and its effects scribd. The ozone in the stratosphere is continually being made and broken by ultraviolet light in the ozoneoxygen cycle. Aug 20, 2017 while its possible that some tiny causal link could be found between the two, acid rain and ozone depletion are both results symptoms of industrial processes rather than causes. Lake acidification and fish loss in the adirondacks, green mountains, and sierra nevada make national news. In fact whole world is vulnerable to its after affects. There are also springtime polar tropospheric ozone depletion. The vienna convention for protection of ozone layer was adopted by 43 nations in 1985. Pollution, pollutants and ozone layer depletion class 11. Ozone is a highly reactive gas comprising triatomic oxygen ozone layer in the stratosphere protects the earths surface from uv light ozone depletion refers to a lowered concentration of ozone in the upper atmosphere holes are formed more uv radiation is reaching the earths surface october ozone levels over. Acid rain, greenhouse effect, global warming, ozone layer by. Acid rain acid rain is a rain or any other form of precipitation that is unusually acidic, i. When atmospheric pollutants like oxides of nitrogen and sulphur react with rainwater and come down with the rain, then this results in acid rain.
The stratosphere is the mass of protective gases clinging to our planet. Evs global warming, ozone depletion ppt ozone depletion. 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. Uv gets absorbed in the stratosphere by molecular oxygen, which splits into 2. Download acid rain and ozone layer depletion or read online books in pdf, epub, tuebl, and mobi format. The stratosphere increases in warmth with elevation because ozone gases in the upper layers absorb. Jul 15, 2019 ozone layer depletion has been one of the major concern for the scientists of the world. Project ozone layer depletion pdf the stratospheric ozone layer forms a thin shield in the upper atmosphere, protecting life on earth from. However, because it occurs in such a low concentration, its vulnerable to ozonedepleting chemicals, such as cfcs. Rain is called acid rain only if it has more acid than normal. Pdf causes of ozone layer depletion and its effects on. Acid rain and ozone depletion helped make the great dying.
Unlike oxygen o2, ozone has a strong scent and is blue in color. While its possible that some tiny causal link could be found between the two, acid rain and ozone depletion are both results symptoms of industrial processes rather than causes. Ozone is a colourless gas which is found in the stratosphere of our upper atmosphere. Inexpensive light extremely stable, inert traditional refrigerants ammonia, sulfur dioxide, methyl chloride highly volatile caustic and toxic remove heat through vaporization of liquefied gas only adequate as refrigerants expensive heavy transport, storage. The depletion of the ozone describes two closely related but distinct phenomena which have been repeatedly observed since the latter 1970s. Study the causes, effects, along with a few examples and understand the prevention measures.
The causes of acid rain are sulfur and nitrogen particles. Scribd is the worlds largest social reading and publishing site. Rainfall made sufficiently acidic by atmosphericpollution that it causes environmental harm,typically to forests and lakes. The united states and canada begin study of crossborder acid rain transport.
Acid rain and ozone layer depletion download ebook pdf. In all simulations, background total stratospheric chlorine and bromine values are 0. This document is highly rated by class 11 students and has been viewed 1140 times. A free powerpoint ppt presentation displayed as a flash slide show on id. Near the ground, ozone forming as a result of chemical reactions involving traffic pollution and sunlight may cause a number of respiratory problems, particularly for young children. Dec 30, 2014 additionally, alternative energy sources are gaining more prominence today and funding is being given to the restoration of ecosystems damaged by acid rain worldwide. May 03, 2020 pollution, pollutants and ozone layer depletion class 11 notes edurev is made by best teachers of class 11. Vivert1448 priyanka n jeevan 1446 1453 rekha 1445 shabnam 1447. Causes of ozone layer depletion and its effects on human. Problems affecting the environment some of the largest problems now affecting the world are. 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. Ozone layer depletion the emission of ods account for roughly 90% of total depletion of ozone layer in stratosphere. The stratosphere gets its name because it is stratified, or layered. Click download or read online button to get acid rain and ozone layer depletion book now.
Ozone is a highly reactive gas comprising triatomic oxygen ozone layer in the stratosphere protects the earths surface from uv light ozone depletion refers to a lowered concentration of ozone in the upper atmosphere holes are formed more uv radiation is. In addition, the team believe that the gases may have led to the destruction of between 565% of the ozone layer, increasing the planets exposure to. Acid rain greenhouse effect cars smokes form clouds that react with the water lost on the atmosphere. Ozone depleting substances are the substances such as chlorofluorocarbons, halons, carbon tetrachloride, hydrofluorocarbons, etc. Hence, cfcs are transporting agents that are responsible for damaging the ozone layer. It addressed the im portance of conservation of ozone layer and established. The formation of acid rain burn fossil fuels in transport, industry, homes, power stations the rest reacts with sunlight and ozone in the atmosphere. The international organization for standardization iso states that air pollution is the result of human activities and natural processes on the environment, which causes certain gases to be released into the air to interact with other substances to form acid rain, the greenhouse effect and ozone hole on.
This conclusion was reached by a us team that used geological samples to develop a climate model that predicted extreme atmospheric effects that could have been behind the mass extinction at the end of the permian. Air pollution, smog, acid rain, the greenhouse effect. The international organization for standardization iso states that air pollution is the result of human activities and natural processes on the environment, which causes certain gases to be released into the air to interact with other substances to form acid rain, the greenhouse effect and ozone hole on global scale. Depletion of the ozone layer, acid rain, pollution air, water, noise and land, urbanization, deforestation, soil degradation, and so on. The main causes of acid rain are gases called sulfur dioxide so2 and nitrogen oxides nox. 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. Although the planet needs an ozone layer for protection from the suns harmful ultraviolet rays, ozone can be. The models predicted that carbon dioxide and sulfur emissions were substantial enough to create widespread bouts of acid rain in the northern hemisphere with ph levels reaching up to 2. Additionally, alternative energy sources are gaining more prominence today and funding is being given to the restoration of ecosystems damaged by acid rain worldwide. Ozone layer is a thin, fragileshield that contains relatively highconcentrations of ozone. This free powerpoint template helps you to grasp the attention of your viewers towards the importance, effects and causes of ozone layer depletion. Is acid rain responsible for ozone layer depletion. The ozone layer is a belt of naturally occurring ozone gas that sits 9. The increase in the levels of uv rays lead to high rate of skin cancer and eye related problems.