what caused the ozone hole
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What are the causes of the hole in the ozone layer? The hole in the ozone layer happens because the ozone in the stratosphere is destroyed by chlorine and bromine from halogen atoms. These atoms come from man-made halocarbon refrigerator gases (chlorofluorocarbons [CFCs], freons and halons) which are emitted at ground level but move up into the ozone layer.zone depletion was observed to increase as emissions of halo-carbons increased. Ozone is a protective layer in the upper atmosphere. It is formed when oxygen molecules absorb short wavelength ultra violet radiations from the sun. Ozone is mostly destroyed by free radicals in the atmosphere.
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Ozone: The Good and Bad of Ozone Each of those oxygen atoms then binds with an oxygen molecule to form an ozone molecule. Depletion of stratospheric ozone poses serious health risks for humans and environmental hazards for the planet, and many nations have banned or limited the use of chemicals, including CFC, that contribute to ozone depletion. The Origin of Bad Ozone. Ozone is also found much nearer the ground, in the troposphere, the lowest level of Earth’s atmosphere. Unlike the ozone that occurs naturally in the stratosphere, tropospheric ozone is man-made, an indirect result of air pollution created by ...
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What are the effects of ozone depletion? As explained above, the primary cause of ozone depletion is the presence of chlorine-containing source gases (primarily CFCs and related halocarbons). In the presence of UV light, these gases dissociate, releasing chlorine atoms, which then go on to catalyze ozone destruction.
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Ozone depletion Ozone is a gas that is present in the ozone layer in the stratosphere of the Earth. 1  There, it will absorb almost all ultraviolet light which is harmful to many organisms. The term Ozone depletion can refer to a number of distinct, but related phenomena: Since about the 1970s, there has been a decrease in total volume of the Ozone in the ozone layer, of about 4%, per decade. There are seasonal variations in the ozone layers; in springtime, there is less ozone in the ozone layer over the polar regions, esp. the south pole. This is generally known as ozone hole. In addition to these well-known stratospheric phenomena, there are also springtime polar tropospheric ozone depletion events. The details of polar ozone hole formation differ from that of mid-latitude thinning, but the most important process in both is catalytic destruction of ozone by atomic halogens.
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ozone depletion ozone depletion. Destruction of the upper atmospheric layer of ozone gas, caused by substances formed from breakdown of ozone depleting substances. See also ozone layer. Use 'ozone depletion' in a Sentence. The ozone depletion was analyzed by our top scientists in our research and development lab and we came to many conclusions.
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Ozone depletion Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about four percent in the total amount of ozone in Earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions.[1] The latter phenomenon is referred to as the ozone hole ...
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- 1 The ozone hole was discovered by Joseph Farman (team leader), Brian Gardiner, and Jonathan Shanklin in 1984 (reported in 1985). 2  The hole is not an actual hole, but a thinning of the layer near the poles during their respective winters.
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Ozone depletion Image of the largest Antarctic ozone hole ever recorded (September 2006), over the Southern pole. Layers of the atmosphere (not to scale). The Earth's ozone layer is mainly found in the lower portion of the stratosphere from approximately 20 to 30 km (12 to 19 mi).
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Where is the Ozone Layer Located Ozone layer hole. Image credit: NASA. The Ozone Layer is the portion of the atmosphere that contains high levels of the oxygen molecule ozone. This molecule plays an important role acting as a natural UV shield for the Earth. You may wonder where is the ozone layer located to play such a vital role so effectively. The Ozone layer is actually located in the stratosphere in a region that is 10 to 50 km above the Earth.
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Ozone in the Troposphere You may have heard of the ozone hole problem-that is a lack of ozone in the stratosphere (the 2nd layer of the Earth's atomsphere). But ozone is also found in the troposphere, the first layer of the Earth s atmosphere. In the troposphere, ozone is NOT wanted! It can actually do a lot of damage. Ozone peaks in urban areas during late afternoon.
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- Global warming is also predicted to have a modest impact on the Antarctic ozone hole. The chlorine gases in the lower stratosphere interact with tiny cloud particles that form at extremely cold temperatures — below -80 degrees Celsius (-112 degrees Fahrenheit).or example, the CFCs that destroy ozone are also potent greenhouse gases, though they are present in such small concentrations in the atmosphere (several hundred parts per trillion, compared to several hundred parts per million for carbon dioxide) that they are considered a minor player in greenhouse warming.
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Saving the ozone layer: why the Montreal Protocol worked The Montreal Protocol negotiators should get a lot of credit for developing such a flexible treaty. SAVING THE OZONE: It might not seem so long ago that the discovery of the hole in the ozone layer over Antarctica had us in a frenzy over CFCs in hairsprays and insecticides. In fact, on September 16 2012, it will be 25 years since the Montreal Protocol on Substances that Deplete the Ozone Layer was signed.
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- Ozone occurs in two layers of the atmosphere. The ozone that is commonly associated with ozone depletion and the ozone hole is in the stratosphere, a layer that extends upward from about 10 to 30 miles (15 to 50 kilometers) above the earth.zone occurs in two layers of the atmosphere. The ozone that is commonly associated with ozone depletion and the ozone hole is in the stratosphere, a layer that extends upward from about 10 to 30 miles (15 to 50 kilometers) above the earth.
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- The Ozone Hole For nearly a billion years, ozone molecules in the atmosphere have protected life on Earth from the effects of ultraviolet rays. The ozone layer resides in the stratosphere and surrounds the entire Earth. UV-B radiation (280- to 315- nanometer (nm) wavelength) from the Sun is partially absorbed in this layer. As a result, the amount of UV-B reaching Earth s surface is greatly reduced.
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- Damage to Ozone Layer. Satellite measurements in September 2000 revealed that the stratospheric ozone hole over the Antarctic had a reached a record 28.3 million square kilometres (some one million sq. km more than the previous record, in 1998).
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ozone hole definition, ozone hole meaning | English dictionary ozone hole definition, ozone hole meaning | English dictionary. ozone. 1 a colourless gas with a chlorine-like odour, formed by an electric discharge in oxygen: a strong oxidizing agent, used in bleaching, sterilizing water, purifying air, etc.
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- 1 Depletion of the ozone layer was identified by the US Academy of Sciences in 1976 as being in agreement with the available data. 2  The ozone hole was discovered by Joseph Farman (team leader), Brian Gardiner, and Jonathan Shanklin in 1984 (reported in 1985).
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Spacetime Posted on. (Answer #2). The basic difference is that speed is a scalar quantity, and velocity is a vector quantity; basically, direction matters when talking about velocity, and it doesn't when we are talking about speed. Speed is how fast something is moving--the rate at which a distance is covered.ike this, if it is speed, you would just refer it to 2 m/s. If it is velocity, you refer it as this 2m/s east (with direction). So, average speed is the total distance taken over the total time taken (regardless of direction) while average velocity is the same whole thing, except it includes direction.
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- No, Global Climate Change has very little to do with the Depletion of the Ozone Layer. Recent global climate change or global warming is now considered by most climate scien … tists to be the likely result of increases in man-made greenhouse gas concentrations such as carbon Dioxide (CO2) in the atmosphere. A: Differences: Global warming is an increase in surface temperatures.The hole in the ozone layer is a natural repeating phenomenon, for the pole that is experiencing winter. Ozone decays naturally with time, and due to forcings by various contaminants.
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Stalled Labor and Delivery Problems in Dogs Stalled Labor and Delivery Problems in Dogs Uterine Inertia in Dogs Uterine inertia is a condition in which the pregnant female dog is unable to birth her fetuses due to uterine muscle's inability to contract and expel the puppies from the uterus.
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How is Ozone formed? Stratospheric ozone is good ozone. It forms about 10-30 miles above the Earth's surface and forms a protective layer, called the ozone layer, that shields us from too much of the sun's harmful ultraviolet radiation (UV). Ground-level ozone is bad ozone. Ozone harms human health and the environment when it forms close to the ground. The most significant things that cause ground-level ozone to form are: 1  NO X and VOCs (from mobile source emissions and industrial processes), 2  UV radiation (from sunlight).
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- Power Plants and other industrial waste increases the amount of Ground-Level Ozone Ozone is a gas that is composed of three oxygen atoms (O 3). It is created by the oxides in the air’s nitrogen reaction with volatile organic compounds (VOC). Normally we think of ozone being higher in the atmosphere, also known as “good” ozone. However, when the conditions are right, ozone can occur at ground level, which is known as “bad” ozone. Sunlight and hot weather cause “bad” ozone in harmful concentrations. Thus in the summertime, urban areas have to be concerned about the amount of “bad” ozone.
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- The Ozone layer has been gradually ruined by the effect of the CFCs. The concentration of CFCs has been increased as the human population has grown, and the thickness of the Ozone layer has been lesser to the extent that a hole in the layer has been formed.
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What are the causes of the hole in the ozone layer? The ozone layer prevents the harmful ultraviolet B-waves (UV-B) from reaching the earth. Increased exposure to UV-B is thought to be responsible for increases in skin cancer, eye cataracts and damage to plants and plankton.FCs and similar man-made gases break down the ozone in the stratosphere allowing in harmful ultraviolet radiation. The ozone hole happens mostly in Antarctica where four months of winter darkness create ideal conditions for the destruction.
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Top 10 Tallest Basketball Players in The History of NBA Gheorghe Mureșan is a retired Romanian professional basketball player. At 7 ft 7 in (2.31 m), he is one of the tallest basketball players in NBA history, along with Sudanese player Manute Bol, who was also 7 ft 7 in. Gheorghe Mureșan considered slightly taller than Manute Bol. Bol was officially measured at 7 feet, 6 ¾ inches tall by the Guinness Book of World Records.
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What is Ozone Depletion? What is Ozone Depletion? Legal Definition Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about four percent in the total amount of ozone in Earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions. The latter phenomenon is referred to as the ozone hole.