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1
How do CFCs destroy the ozone layer? - LifeGate
https://www.lifegate.com/how-cfcs-destroy-ozone-layer
When the molecule of chlorine monoxide (ClO) meets another molecule of oxygen (O) it breaks up, releasing chlorine (Cl), which can “destroy” ...
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https://www.lifegate.com/how-cfcs-destroy-ozone-layer
When the molecule of chlorine monoxide (ClO) meets another molecule of oxygen (O) it breaks up, releasing chlorine (Cl), which can “destroy” ...
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2
The Ozone Layer - UCAR Center for Science Education
https://scied.ucar.edu/learning-zone/atmosphere/ozone-layer
Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are ...
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https://scied.ucar.edu/learning-zone/atmosphere/ozone-layer
Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are ...
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3
How do CFCs destroy the ozone layer? - Byju's
https://byjus.com/ias-questions/how-do-cfcs-destroy-the-ozone-layer/
When chlorofluorocarbons (CFC) drift upwards towards the stratosphere, they come in contact with the Ozone layer. This leads to a chemical reaction where ...
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https://byjus.com/ias-questions/how-do-cfcs-destroy-the-ozone-layer/
When chlorofluorocarbons (CFC) drift upwards towards the stratosphere, they come in contact with the Ozone layer. This leads to a chemical reaction where ...
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4
Chlorofluorocarbons and Ozone Depletion
https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/cfcs-ozone.html
reaction that would destroy thousands of other ozone molecules. They estimated that if. CFC use was banned right away, ozone loss would go on for years. If.
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https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/cfcs-ozone.html
reaction that would destroy thousands of other ozone molecules. They estimated that if. CFC use was banned right away, ozone loss would go on for years. If.
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5
How do CFCs Destroy the Ozone Layer?
https://byjusexamprep.com/how-do-cfcs-destroy-the-ozone-layer-i
Chlorofluorocarbons (CFC) destroy the Ozone Layer by interacting with it when they migrate upward toward the stratosphere.
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https://byjusexamprep.com/how-do-cfcs-destroy-the-ozone-layer-i
Chlorofluorocarbons (CFC) destroy the Ozone Layer by interacting with it when they migrate upward toward the stratosphere.
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6
Chlorofluorcarbons - Ozone Hole Website
https://www.ozone-hole.org.uk/05.php
Man-made CFCs are the main cause of stratospheric ozone depletion. CFCs have a lifetime of about 20 to 100 years, and consequently one free chlorine atom from a ...
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https://www.ozone-hole.org.uk/05.php
Man-made CFCs are the main cause of stratospheric ozone depletion. CFCs have a lifetime of about 20 to 100 years, and consequently one free chlorine atom from a ...
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7
7.3: Depletion of the Ozone Layer - Chemistry LibreTexts
https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Kinetics/07%3A_Case_Studies-_Kinetics/7.03%3A_Depletion_of_the_Ozone_Layer
After each reaction, chlorine begins the destructive cycle again with another ozone molecule. One chlorine atom can thereby destroy thousands of ...
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https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Kinetics/07%3A_Case_Studies-_Kinetics/7.03%3A_Depletion_of_the_Ozone_Layer
After each reaction, chlorine begins the destructive cycle again with another ozone molecule. One chlorine atom can thereby destroy thousands of ...
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8
Ozone Layer
https://www2.nau.edu/lrm22/lessons/ozone_layer/ozone_layer.html
How do CFCs affect ozone depletion? Chloro-fluorocarbons (CFC's) themselves do not destroy ozone; certain of their decay products do. After CFC's are photolyzed ...
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https://www2.nau.edu/lrm22/lessons/ozone_layer/ozone_layer.html
How do CFCs affect ozone depletion? Chloro-fluorocarbons (CFC's) themselves do not destroy ozone; certain of their decay products do. After CFC's are photolyzed ...
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9
Ozone in the Atmosphere
http://sunshine.chpc.utah.edu/Labs/OurAtmosphere/ozone_main2.html
In the lower atmosphere, CFCs are protected from UV light from the ozone layer in the stratosphere. But as CFCs rise, they move into the stratosphere. The UV ...
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http://sunshine.chpc.utah.edu/Labs/OurAtmosphere/ozone_main2.html
In the lower atmosphere, CFCs are protected from UV light from the ozone layer in the stratosphere. But as CFCs rise, they move into the stratosphere. The UV ...
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10
Destruction of the Ozone Layer - The Causes
https://ypte.org.uk/factsheets/ozone-layer/destruction-of-the-ozone-layer-the-causes
CFCs rise and gradually accumulate in the stratosphere where they are broken down by the sun's ultraviolet light, so releasing chlorine atoms. The chlorine ...
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https://ypte.org.uk/factsheets/ozone-layer/destruction-of-the-ozone-layer-the-causes
CFCs rise and gradually accumulate in the stratosphere where they are broken down by the sun's ultraviolet light, so releasing chlorine atoms. The chlorine ...
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11
Stratospheric ozone and the ozone layer
http://www.atmo.arizona.edu/students/courselinks/spring13/atmo170a1s1/1S1P_stuff/stratospheric_ozone/stratospheric_ozone.html
UV light can then break chlorine atoms off the CFC molecule Point (a)). The resulting "free chlorine" can react with and destroy ozone.
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http://www.atmo.arizona.edu/students/courselinks/spring13/atmo170a1s1/1S1P_stuff/stratospheric_ozone/stratospheric_ozone.html
UV light can then break chlorine atoms off the CFC molecule Point (a)). The resulting "free chlorine" can react with and destroy ozone.
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12
How Do Chlorofluorocarbons Harm the Ozone Layer?
https://sciencing.com/chlorofluorocarbons-harm-ozone-layer-4275.html
When the sun's UV rays come in contact with CFCs, the chlorine atoms come loose. These chlorine atoms wander around the atmosphere until they ...
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https://sciencing.com/chlorofluorocarbons-harm-ozone-layer-4275.html
When the sun's UV rays come in contact with CFCs, the chlorine atoms come loose. These chlorine atoms wander around the atmosphere until they ...
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13
Ozone depleting substances - DCCEEW
https://www.dcceew.gov.au/environment/protection/ozone/ozone-science/ozone-depleting-substances
Ozone depleting substances are chemicals that destroy the earth's protective ozone layer. They include: chlorofluorocarbons (CFCs) ...
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https://www.dcceew.gov.au/environment/protection/ozone/ozone-science/ozone-depleting-substances
Ozone depleting substances are chemicals that destroy the earth's protective ozone layer. They include: chlorofluorocarbons (CFCs) ...
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14
How Chlorofluorocarbons (CFCs) get to the Stratosphere ...
https://uk-air.defra.gov.uk/research/ozone-uv/moreinfo?view=cfc-stratosphere
Chlorine released from this breakdown of CFC-11 and other CFCs remains in the stratosphere for several years, where every chlorine atom destroys many thousands ...
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https://uk-air.defra.gov.uk/research/ozone-uv/moreinfo?view=cfc-stratosphere
Chlorine released from this breakdown of CFC-11 and other CFCs remains in the stratosphere for several years, where every chlorine atom destroys many thousands ...
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15
Chlorofluorocarbons (CFCs) - Global Monitoring Laboratory
https://gml.noaa.gov/hats/publictn/elkins/cfcs.html
Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol ...
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https://gml.noaa.gov/hats/publictn/elkins/cfcs.html
Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol ...
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16
NASA Study: First Direct Proof of Ozone Hole Recovery Due to ...
https://www.nasa.gov/feature/goddard/2018/nasa-study-first-direct-proof-of-ozone-hole-recovery-due-to-chemicals-ban
CFC molecules contain chlorine atoms, and each atom can destroy thousands of ozone molecules. Under the auspices of the Montreal Protocol ...
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https://www.nasa.gov/feature/goddard/2018/nasa-study-first-direct-proof-of-ozone-hole-recovery-due-to-chemicals-ban
CFC molecules contain chlorine atoms, and each atom can destroy thousands of ozone molecules. Under the auspices of the Montreal Protocol ...
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17
Ozone and You
https://ozone.unep.org/ozone-and-you
How do these chemicals deplete ozone? When a CFC molecule reaches the stratosphere, it eventually absorbs UV radiation, causing it to decompose and release ...
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https://ozone.unep.org/ozone-and-you
How do these chemicals deplete ozone? When a CFC molecule reaches the stratosphere, it eventually absorbs UV radiation, causing it to decompose and release ...
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18
Ozone depletion facts and information - National Geographic
https://www.nationalgeographic.com/environment/article/ozone-depletion
At the time, CFCs were commonly used in aerosol sprays and as coolants in many refrigerators. As they reach the stratosphere, the sun's UV rays ...
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https://www.nationalgeographic.com/environment/article/ozone-depletion
At the time, CFCs were commonly used in aerosol sprays and as coolants in many refrigerators. As they reach the stratosphere, the sun's UV rays ...
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19
10.2 Ozone Depletion – Environmental Biology - IU Pressbooks
https://iu.pressbooks.pub/environmentalbiology/chapter/10-2-ozone-depletion/
In 1973, scientists calculated that CFCs could reach the stratosphere and break apart. This would release chlorine atoms, which would then destroy ozone.
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https://iu.pressbooks.pub/environmentalbiology/chapter/10-2-ozone-depletion/
In 1973, scientists calculated that CFCs could reach the stratosphere and break apart. This would release chlorine atoms, which would then destroy ozone.
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20
The Montreal Protocol on Substances That Deplete the Ozone ...
https://www.state.gov/key-topics-office-of-environmental-quality-and-transboundary-issues/the-montreal-protocol-on-substances-that-deplete-the-ozone-layer/
In the 1970s, evidence began to surface that CFCs, which were used in everyday household products such as air conditioners and refrigerators, were depleting the ...
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https://www.state.gov/key-topics-office-of-environmental-quality-and-transboundary-issues/the-montreal-protocol-on-substances-that-deplete-the-ozone-layer/
In the 1970s, evidence began to surface that CFCs, which were used in everyday household products such as air conditioners and refrigerators, were depleting the ...
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21
Chapter 1 Review Questions
http://www.ccpo.odu.edu/SEES/ozone/class/Chap_1/1_RQ.htm
3d. The photolysis of CFCs generates a highly reactive chlorine atom that can attack ozone or form compounds that destroy ozone. 4a. The Antarctic ozone hole is ...
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http://www.ccpo.odu.edu/SEES/ozone/class/Chap_1/1_RQ.htm
3d. The photolysis of CFCs generates a highly reactive chlorine atom that can attack ozone or form compounds that destroy ozone. 4a. The Antarctic ozone hole is ...
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22
How do CFCs damage the ozone layer? - Quora
https://www.quora.com/How-do-CFCs-damage-the-ozone-layer
When chlorofluorocarbons (CFC) drift upwards towards the stratosphere, they come in contact with the Ozone layer. This leads to a chemical reaction where the ...
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https://www.quora.com/How-do-CFCs-damage-the-ozone-layer
When chlorofluorocarbons (CFC) drift upwards towards the stratosphere, they come in contact with the Ozone layer. This leads to a chemical reaction where the ...
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23
Ozone layer 'rescued' from CFC damage - BBC News
https://www.bbc.com/news/science-environment-56014092
CFCs stand for chlorofluorocarbons. This family of chemicals has seen widespread use in refrigeration and as propellants in aerosol cans. Their ...
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https://www.bbc.com/news/science-environment-56014092
CFCs stand for chlorofluorocarbons. This family of chemicals has seen widespread use in refrigeration and as propellants in aerosol cans. Their ...
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24
Ozone layer - Understanding Global Change
https://ugc.berkeley.edu/background-content/ozone-layer/
Human-made chemicals developed in the 1960s called chlorofluorocarbons (CFCs) also destroy ozone. CFCs are used for various products, including air ...
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https://ugc.berkeley.edu/background-content/ozone-layer/
Human-made chemicals developed in the 1960s called chlorofluorocarbons (CFCs) also destroy ozone. CFCs are used for various products, including air ...
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25
Ozone depletion - Wikipedia
https://en.wikipedia.org/wiki/Ozone_depletion
The main causes of ozone depletion and the ozone hole are manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, ...
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https://en.wikipedia.org/wiki/Ozone_depletion
The main causes of ozone depletion and the ozone hole are manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants, ...
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26
ozone layer | National Geographic Society
https://www.nationalgeographic.org/encyclopedia/ozone-layer/
But the CFCs start eating away at the ozone layer once they get blown into the stratosphere. Ozone molecules, which are simply made of three ...
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https://www.nationalgeographic.org/encyclopedia/ozone-layer/
But the CFCs start eating away at the ozone layer once they get blown into the stratosphere. Ozone molecules, which are simply made of three ...
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27
Environment for Kids: Ozone Layer Depletion - Ducksters
https://www.ducksters.com/science/environment/ozone_layer.php
Unfortunately, CFCs can eventually find their way into the Earth's atmosphere and the ozone layer. Once they get there they destroy ozone molecules and ...
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https://www.ducksters.com/science/environment/ozone_layer.php
Unfortunately, CFCs can eventually find their way into the Earth's atmosphere and the ozone layer. Once they get there they destroy ozone molecules and ...
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28
Chlorofluorocarbons - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/chlorofluorocarbons
CFCs chlorine components reportedly destroy ozone in the upper atmosphere. A targeted worldwide complete phase-out of CFCs was soon among the amendments to the ...
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https://www.sciencedirect.com/topics/engineering/chlorofluorocarbons
CFCs chlorine components reportedly destroy ozone in the upper atmosphere. A targeted worldwide complete phase-out of CFCs was soon among the amendments to the ...
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29
Stratospheric Ozone - Environmental Science - Socratic
https://socratic.org/environmental-science/climate-change/stratospheric-ozone
Chlorofluorocarbons (CFCs) damage the ozone layer. Where do these chemicals come from? What is ozone depletion? Why does the Antarctic have a large hole in the ...
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https://socratic.org/environmental-science/climate-change/stratospheric-ozone
Chlorofluorocarbons (CFCs) damage the ozone layer. Where do these chemicals come from? What is ozone depletion? Why does the Antarctic have a large hole in the ...
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30
Ozone depleting substances - Ministry for the Environment
https://environment.govt.nz/acts-and-regulations/acts/ozone-layer-protection-act-1996/ozone-depleting-substances/
Hydrochlorofluorocarbons (HCFCs) have been used as a substitute for CFCs. They do less damage to the ozone layer than CFCs.
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https://environment.govt.nz/acts-and-regulations/acts/ozone-layer-protection-act-1996/ozone-depleting-substances/
Hydrochlorofluorocarbons (HCFCs) have been used as a substitute for CFCs. They do less damage to the ozone layer than CFCs.
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31
Ozone Destruction Cycles - The Ozone Hole
https://www.theozonehole.org/ozonedestruction.htm
How ozone is destroyed by CFCs ... When ultraviolet light waves (UV) strike CFC* (CFCl3) molecules in the upper atmosphere, a carbon-chlorine bond breaks, ...
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https://www.theozonehole.org/ozonedestruction.htm
How ozone is destroyed by CFCs ... When ultraviolet light waves (UV) strike CFC* (CFCl3) molecules in the upper atmosphere, a carbon-chlorine bond breaks, ...
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32
Ozone depletion | Facts, Effects, & Solutions | Britannica
https://www.britannica.com/science/ozone-depletion
They also noted that chlorine could destroy extensive amounts of ozone after it was liberated from CFCs by UV radiation. Free chlorine atoms and chlorine- ...
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https://www.britannica.com/science/ozone-depletion
They also noted that chlorine could destroy extensive amounts of ozone after it was liberated from CFCs by UV radiation. Free chlorine atoms and chlorine- ...
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33
Mario Molina | Science History Institute
https://www.sciencehistory.org/historical-profile/mario-molina
How CFCs Destroy Ozone ... Molina's study was a hypothetical one based on computer modeling, but his results suggested that CFCs could, in theory, ...
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https://www.sciencehistory.org/historical-profile/mario-molina
How CFCs Destroy Ozone ... Molina's study was a hypothetical one based on computer modeling, but his results suggested that CFCs could, in theory, ...
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34
atmospheric chemistry - COTF
http://www.cotf.edu/ete/modules/ozone/ozatmo1.html
The process by which CFCs destroy ozone involves the action of uv radiation on a CFC molecule. These molecules are highly unreactive near Earth.
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http://www.cotf.edu/ete/modules/ozone/ozatmo1.html
The process by which CFCs destroy ozone involves the action of uv radiation on a CFC molecule. These molecules are highly unreactive near Earth.
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35
What would have happened to the ozone layer if ...
https://acp.copernicus.org/articles/9/2113/2009/acp-9-2113-2009.pdf
The chemical breakdown of. CFCs and other ozone depleting substances (ODSs) in the stratosphere releases chlorine (Cl) and bromine (Br) atoms that destroy ozone ...
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https://acp.copernicus.org/articles/9/2113/2009/acp-9-2113-2009.pdf
The chemical breakdown of. CFCs and other ozone depleting substances (ODSs) in the stratosphere releases chlorine (Cl) and bromine (Br) atoms that destroy ozone ...
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36
The Criteria Pollutants & a Closer Look at Ozone - NC DEQ
https://deq.nc.gov/media/21380/download
How do CFCs destroy ozone in the stratosphere? [UV radiation knocks a chlorine atom off a CFC molecule; the chlorine atom steals an oxygen atom from an ...
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https://deq.nc.gov/media/21380/download
How do CFCs destroy ozone in the stratosphere? [UV radiation knocks a chlorine atom off a CFC molecule; the chlorine atom steals an oxygen atom from an ...
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37
Ozone-depleting chemicals may spend less time ... - MIT News
https://news.mit.edu/2021/cfc-atmosphere-ozone-0518
“This is higher than what previous scientists suggested for CFC-11, and also identifies likely new emissions of CFC-12 and 113, which previously ...
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https://news.mit.edu/2021/cfc-atmosphere-ozone-0518
“This is higher than what previous scientists suggested for CFC-11, and also identifies likely new emissions of CFC-12 and 113, which previously ...
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38
To Show How the Ozone Layer Can Be ... - UMD DRUM
https://drum.lib.umd.edu/bitstream/handle/1903/10713/Amare.pdf?sequence=1&isAllowed=y
Be Destroyed as the Responsibility of. Chlorofluorocarbons (CFCS) for this Damage ... Then, they can react with ozone and deplete the ozone layer.
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https://drum.lib.umd.edu/bitstream/handle/1903/10713/Amare.pdf?sequence=1&isAllowed=y
Be Destroyed as the Responsibility of. Chlorofluorocarbons (CFCS) for this Damage ... Then, they can react with ozone and deplete the ozone layer.
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39
The cool way to destroy CFCs | New Scientist
https://www.newscientist.com/article/mg14920143-600-the-cool-way-to-destroy-cfcs/
CFCs are extremely inert, which is what makes them useful in industry, and long-lived enough to rise into the stratosphere where they deplete ...
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https://www.newscientist.com/article/mg14920143-600-the-cool-way-to-destroy-cfcs/
CFCs are extremely inert, which is what makes them useful in industry, and long-lived enough to rise into the stratosphere where they deplete ...
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40
The ozone hole shrank, showing the world can solve ... - Vox
https://www.vox.com/future-perfect/22686105/future-of-life-ozone-hole-environmental-crisis
CFCs were everywhere, and as far as everyone knew, they were the perfect chemical: nonreactive, cheap, and highly effective in a wide variety of ...
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https://www.vox.com/future-perfect/22686105/future-of-life-ozone-hole-environmental-crisis
CFCs were everywhere, and as far as everyone knew, they were the perfect chemical: nonreactive, cheap, and highly effective in a wide variety of ...
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41
Ozone Threats - World Bank
http://web.worldbank.org/archive/website00673A/WEB/OTHER/C8C9B789.HTM?OpenDocument
CFCs are very stable chemicals that do not break down in the lower atmosphere. When released, they drift up into the stratosphere where they ...
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http://web.worldbank.org/archive/website00673A/WEB/OTHER/C8C9B789.HTM?OpenDocument
CFCs are very stable chemicals that do not break down in the lower atmosphere. When released, they drift up into the stratosphere where they ...
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42
Chlorofluorocarbons (CFCs) are heavier than air, so how do ...
https://www.scientificamerican.com/article/chlorofluorocarbons-cfcs/
This phenomenon is responsible for acid rain. The most abundant CFCs emitted into the troposphere are CFC 11 and CFC 12. These CFCs are not ...
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https://www.scientificamerican.com/article/chlorofluorocarbons-cfcs/
This phenomenon is responsible for acid rain. The most abundant CFCs emitted into the troposphere are CFC 11 and CFC 12. These CFCs are not ...
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43
Ozone Formation and Destruction - CIMSS
https://cimss.ssec.wisc.edu/wxwise/ozone/OZONE2.html
But how does Cl get into the stratosphere? In the 1930s useful chemical compounds known as chlorofluorocarbons (CFCs) were produced for use in refrigeration, ...
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https://cimss.ssec.wisc.edu/wxwise/ozone/OZONE2.html
But how does Cl get into the stratosphere? In the 1930s useful chemical compounds known as chlorofluorocarbons (CFCs) were produced for use in refrigeration, ...
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44
Ozone Depletion | CK-12 Foundation
https://flexbooks.ck12.org/cbook/ck-12-middle-school-earth-science-flexbook-2.0/section/10.23/primary/lesson/ozone-depletion-ms-es/
CFCs float up into the stratosphere where they break apart. The chlorine pulls an oxygen ion off of an ozone molecule and destroys it. The ozone ...
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https://flexbooks.ck12.org/cbook/ck-12-middle-school-earth-science-flexbook-2.0/section/10.23/primary/lesson/ozone-depletion-ms-es/
CFCs float up into the stratosphere where they break apart. The chlorine pulls an oxygen ion off of an ozone molecule and destroys it. The ozone ...
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45
Protecting the ozone layer while also preventing climate change
https://www.eea.europa.eu/themes/climate/ozone-depleting-substances-and-climate-change
Substances covered by the protocol are referred to as 'controlled substances'. The main substances include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons ...
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https://www.eea.europa.eu/themes/climate/ozone-depleting-substances-and-climate-change
Substances covered by the protocol are referred to as 'controlled substances'. The main substances include chlorofluorocarbons (CFCs), hydrochlorofluorocarbons ...
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46
Introduction - Toxicity of Alternatives to Chlorofluorocarbons
https://www.ncbi.nlm.nih.gov/books/NBK231526/
HCFCs contribute to the destruction of stratospheric ozone, but to a much lesser extent than CFCs. Use of HCFCs as transitional refrigerants will allow industry ...
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https://www.ncbi.nlm.nih.gov/books/NBK231526/
HCFCs contribute to the destruction of stratospheric ozone, but to a much lesser extent than CFCs. Use of HCFCs as transitional refrigerants will allow industry ...
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47
Describe the process by which chlorofluorocarbons destroy oz
https://quizlet.com/explanations/questions/describ-e-the-process-by-which-chlorofluorocarbons-destroy-ozone-molecules-in-the-stratosphere-84b3a772-c0a3-4dca-94d5-57f2027a0a3a
They can be dissociated by UV radiation, stripping off the chlorine atom. Chlorine atom (Cl from CFCs) degrades the ozone molecule, breaking the bond between ...
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https://quizlet.com/explanations/questions/describ-e-the-process-by-which-chlorofluorocarbons-destroy-ozone-molecules-in-the-stratosphere-84b3a772-c0a3-4dca-94d5-57f2027a0a3a
They can be dissociated by UV radiation, stripping off the chlorine atom. Chlorine atom (Cl from CFCs) degrades the ozone molecule, breaking the bond between ...
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48
Affects of CFCs - THE O3zone
https://theo3zone.weebly.com/affects-of-cfcs.html
How do CFC's destroy the ozone layer? ... Chlorine acts as a catalyst in the When UV radiation hits a CFC molecule it causes one chlorine atom to break away due ...
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https://theo3zone.weebly.com/affects-of-cfcs.html
How do CFC's destroy the ozone layer? ... Chlorine acts as a catalyst in the When UV radiation hits a CFC molecule it causes one chlorine atom to break away due ...
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49
Ozone Layer Protection | Environmental Protection Department
https://www.epd.gov.hk/epd/english/environmentinhk/air/ozone_layer_protection/wn6_info_olp_ue_c.html
CFC-11, CFC-12 and HCFC-22 are used as refrigerant in domestic air-conditioners and refrigerators as well as retail store refrigeration systems, chillers and ...
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https://www.epd.gov.hk/epd/english/environmentinhk/air/ozone_layer_protection/wn6_info_olp_ue_c.html
CFC-11, CFC-12 and HCFC-22 are used as refrigerant in domestic air-conditioners and refrigerators as well as retail store refrigeration systems, chillers and ...
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50
Someone, somewhere, is making a banned chemical that ...
https://www.washingtonpost.com/news/energy-environment/wp/2018/05/16/someone-somewhere-is-making-a-banned-chemical-that-destroys-the-ozone-layer-scientists-suspect/
CFC-11, used primarily for foams, can last up to 50 years in the atmosphere once it is released. It is destroyed only in the stratosphere, ...
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https://www.washingtonpost.com/news/energy-environment/wp/2018/05/16/someone-somewhere-is-making-a-banned-chemical-that-destroys-the-ozone-layer-scientists-suspect/
CFC-11, used primarily for foams, can last up to 50 years in the atmosphere once it is released. It is destroyed only in the stratosphere, ...
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51
Ozone Layer - Our World in Data
https://ourworldindata.org/ozone-layer
There are a significant number of ODS, including chlorofluorocarbons (CFCs), ... Reactive halogen gases can then destroy stratospheric ozone, resulting in ...
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https://ourworldindata.org/ozone-layer
There are a significant number of ODS, including chlorofluorocarbons (CFCs), ... Reactive halogen gases can then destroy stratospheric ozone, resulting in ...
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52
Chlorofluorocarbons (CFCs)
https://cdphe.colorado.gov/chlorofluorocarbons-cfcs
Ozone-depleting compounds that reach the stratospheric ozone layer release free chlorine from their chemical structure and destroy atmospheric ozone by ...
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https://cdphe.colorado.gov/chlorofluorocarbons-cfcs
Ozone-depleting compounds that reach the stratospheric ozone layer release free chlorine from their chemical structure and destroy atmospheric ozone by ...
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53
Chlorofluorocarbons and Ozone
http://butane.chem.uiuc.edu/pshapley/GenChem2/A10/3.html
One atom of chlorine can destroy many ozone molecules. In the next section, we'll cover the reactions that result in decreases of stratospheric ozone and the ...
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http://butane.chem.uiuc.edu/pshapley/GenChem2/A10/3.html
One atom of chlorine can destroy many ozone molecules. In the next section, we'll cover the reactions that result in decreases of stratospheric ozone and the ...
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54
MOTD CFC's
http://iverson.cm.utexas.edu/courses/310N/MOTD%20Fl05/MOTDfl03/CFCs.html
When CFC's diffuse into the top of the ozone layer they are exposed to intense ultraviolet light, which leads to dissociation of carbon-chlorine bonds. This ...
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http://iverson.cm.utexas.edu/courses/310N/MOTD%20Fl05/MOTDfl03/CFCs.html
When CFC's diffuse into the top of the ozone layer they are exposed to intense ultraviolet light, which leads to dissociation of carbon-chlorine bonds. This ...
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55
Chlorofluorocarbons - BioNinja
http://ib.bioninja.com.au/options/option-c-ecology-and-conser/c3-impacts-of-humans-on/chlorofluorocarbons.html
CFCs are broken down by ultraviolet radiation to release chloride ions that react with ozone · The chloride ion breaks the ozone down into oxygen – one chloride ...
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http://ib.bioninja.com.au/options/option-c-ecology-and-conser/c3-impacts-of-humans-on/chlorofluorocarbons.html
CFCs are broken down by ultraviolet radiation to release chloride ions that react with ozone · The chloride ion breaks the ozone down into oxygen – one chloride ...
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56
The ozone hole - Discovering Antarctica
https://discoveringantarctica.org.uk/oceans-atmosphere-landscape/atmosphere-weather-and-climate/the-ozone-hole/
Despite the differences, there are also some links between the two problems. For example, in addition to causing ozone depletion, CFCs are also a greenhouse ...
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https://discoveringantarctica.org.uk/oceans-atmosphere-landscape/atmosphere-weather-and-climate/the-ozone-hole/
Despite the differences, there are also some links between the two problems. For example, in addition to causing ozone depletion, CFCs are also a greenhouse ...
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57
The Ozone Layer: Formation and Depletion
https://facultystaff.richmond.edu/~sabrash/110/The%20Ozone%20Layer.ppt
How do CFCs destroy ozone? Answer in some detail. “Hard” CFCs are unreactive to OH and other reactive radicals in the troposphere. They are also pretty ...
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https://facultystaff.richmond.edu/~sabrash/110/The%20Ozone%20Layer.ppt
How do CFCs destroy ozone? Answer in some detail. “Hard” CFCs are unreactive to OH and other reactive radicals in the troposphere. They are also pretty ...
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58
What do big, poofy hairstyles and the ozone layer have in ...
https://blogs.iadb.org/sostenibilidad/en/ozone-layer-day-safeguards/
CFCs are and were a main ingredient in our once-beloved hair spray as well as everyday cleaning products. It is also a main cooling agent ...
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https://blogs.iadb.org/sostenibilidad/en/ozone-layer-day-safeguards/
CFCs are and were a main ingredient in our once-beloved hair spray as well as everyday cleaning products. It is also a main cooling agent ...
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59
Chlorofluorocarbons (CFCs) are a family of compounds ...
https://www.chem.uwec.edu/chem405_s01/gunderse/project.html
[1] The chlorine atom is what reacts with and destroys ozone. In this process, chlorine acts as a catalyst and is recycled each time it is used, thus one ...
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https://www.chem.uwec.edu/chem405_s01/gunderse/project.html
[1] The chlorine atom is what reacts with and destroys ozone. In this process, chlorine acts as a catalyst and is recycled each time it is used, thus one ...
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60
Whatever Happened to the Hole in the Ozone Layer?
https://www.discovermagazine.com/environment/whatever-happened-to-the-hole-in-the-ozone-layer
CFCs, short for chlorofluorocarbons, are one of the most detrimental gases to the ozone layer. CFCs contain chlorine — a compound that's great ...
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https://www.discovermagazine.com/environment/whatever-happened-to-the-hole-in-the-ozone-layer
CFCs, short for chlorofluorocarbons, are one of the most detrimental gases to the ozone layer. CFCs contain chlorine — a compound that's great ...
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61
Ozone 08.doc - NeoOffice Writer
https://www.baraboo.k12.wi.us/newsfile14010_1.pdf
One chlorine or bromine molecule can destroy 100,000 ozone ... The journey from the Earth's surface to the stratosphere for a CFC molecule may take as long ...
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https://www.baraboo.k12.wi.us/newsfile14010_1.pdf
One chlorine or bromine molecule can destroy 100,000 ozone ... The journey from the Earth's surface to the stratosphere for a CFC molecule may take as long ...
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62
Hypothesis that CFCs damage ozone layer
https://www.environmentandsociety.org/tools/keywords/hypothesis-cfcs-damage-ozone-layer
Molina's and Rowland's research showed that CFCs could thin the stratospheric ozone layer, leading to increased levels of ultraviolet radiation exposure and ...
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https://www.environmentandsociety.org/tools/keywords/hypothesis-cfcs-damage-ozone-layer
Molina's and Rowland's research showed that CFCs could thin the stratospheric ozone layer, leading to increased levels of ultraviolet radiation exposure and ...
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63
Chlorofluorocarbons
https://www.uoguelph.ca/geology/geol2250/glossary/HTML%20files/chlorofluorocarbons.html
1. Ozone and CFCs together in the stratosphere · 2. Irradition by UV radiation liberates a chlorine from CFC · 3. Chorine is available to attack and destroy an ...
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https://www.uoguelph.ca/geology/geol2250/glossary/HTML%20files/chlorofluorocarbons.html
1. Ozone and CFCs together in the stratosphere · 2. Irradition by UV radiation liberates a chlorine from CFC · 3. Chorine is available to attack and destroy an ...
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64
“Hole”-Y Ozone! It's the CFC's! (6-8) - AirNow.gov
https://www.airnow.gov/sites/default/files/2020-10/holy_ozone_its_the_cfcs.pdf
When CFCs are allowed to escape into the atmosphere, they rise until they reach ... One chlorine atom has the potential to destroy 10,000 or more molecules.
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https://www.airnow.gov/sites/default/files/2020-10/holy_ozone_its_the_cfcs.pdf
When CFCs are allowed to escape into the atmosphere, they rise until they reach ... One chlorine atom has the potential to destroy 10,000 or more molecules.
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65
ESS Topic 6.2: Stratospheric Ozone
https://www.mrgscience.com/ess-topic-62-stratospheric-ozone.html
The illegal trade in CFCs is undermining the 'Montreal Protocol on Substances that Deplete the Ozone Layer'. Reasons for the illegal trade: ODS substitutes are ...
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https://www.mrgscience.com/ess-topic-62-stratospheric-ozone.html
The illegal trade in CFCs is undermining the 'Montreal Protocol on Substances that Deplete the Ozone Layer'. Reasons for the illegal trade: ODS substitutes are ...
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66
Ozone - EPA Certification - SkillCat
https://www.skillcatapp.com/post/ozone-epa-certification
CFCs and HCFCs do not dissolve in water and do not break down easily in the atmosphere. Because of this, the chlorine in these chemicals can destroy a lot ...
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https://www.skillcatapp.com/post/ozone-epa-certification
CFCs and HCFCs do not dissolve in water and do not break down easily in the atmosphere. Because of this, the chlorine in these chemicals can destroy a lot ...
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67
Man-made Chemicals, CFCs
https://meteor.geol.iastate.edu/gccourse/alumni/chem/ozone/text.html
Chlorine-containing molecules, such as the CFC's, CF2, CL2, CCl3F, that have long enough lifetimes will diffuse to the stratosphere where they are acted on by ...
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https://meteor.geol.iastate.edu/gccourse/alumni/chem/ozone/text.html
Chlorine-containing molecules, such as the CFC's, CF2, CL2, CCl3F, that have long enough lifetimes will diffuse to the stratosphere where they are acted on by ...
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68
Chlorofluorocarbons and Related Compounds
https://www.encyclopedia.com/environment/energy-government-and-defense-magazines/chlorofluorocarbons-and-related-compounds
Chlorofluorocarbons and Related CompoundsIntroductionChlorofluorocarbons (CFCs) are greenhouse gas compounds that contain only carbon, fluorine, ...
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https://www.encyclopedia.com/environment/energy-government-and-defense-magazines/chlorofluorocarbons-and-related-compounds
Chlorofluorocarbons and Related CompoundsIntroductionChlorofluorocarbons (CFCs) are greenhouse gas compounds that contain only carbon, fluorine, ...
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69
Approaches to eliminating chlorofluorocarbon use in ... - PNAS
https://www.pnas.org/content/89/3/812.full.pdf
agreements which will end virtually all production of these ... The potential for CFCs to destroy ozone was firstpredicted.
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https://www.pnas.org/content/89/3/812.full.pdf
agreements which will end virtually all production of these ... The potential for CFCs to destroy ozone was firstpredicted.
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70
Stratospheric Ozone Depletion by Chlorofluorocarbons - JSTOR
https://www.jstor.org/stable/4313719
Man-made chlorofluorocarbons (CFCs) such as CCI2F2 and CCI3F are inert ... will be destroyed in doing so. ... that can destroy ozone in the stratosphere.
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https://www.jstor.org/stable/4313719
Man-made chlorofluorocarbons (CFCs) such as CCI2F2 and CCI3F are inert ... will be destroyed in doing so. ... that can destroy ozone in the stratosphere.
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71
roleofozone.html - Earthguide
http://earthguide.ucsd.edu/virtualmuseum/content/roleofozone.html
In this manner even minute quantities of CFCs reaching the stratosphere can have disastrous effects on the ozone layer there. Step 5. A depleted ozone layer ...
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http://earthguide.ucsd.edu/virtualmuseum/content/roleofozone.html
In this manner even minute quantities of CFCs reaching the stratosphere can have disastrous effects on the ozone layer there. Step 5. A depleted ozone layer ...
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72
Successes in fight to save ozone layer could close holes by ...
https://www.nature.com/articles/35047229.pdf?origin=ppub
discovery that CFCs destroy ozone, agrees with the researchers' projections, and adds that the effects of greenhouse gases should be.
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https://www.nature.com/articles/35047229.pdf?origin=ppub
discovery that CFCs destroy ozone, agrees with the researchers' projections, and adds that the effects of greenhouse gases should be.
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73
SOLVED:Explain how CFCs deplete the ozone layer.
https://www.numerade.com/questions/explain-how-cfcs-deplete-the-ozone-layer/
CFCs are harmful to the ozone layer in the Earth's atmosphere. Because of the release of chlorine atoms on exposure to UV radiation, these chlorine atoms are ...
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https://www.numerade.com/questions/explain-how-cfcs-deplete-the-ozone-layer/
CFCs are harmful to the ozone layer in the Earth's atmosphere. Because of the release of chlorine atoms on exposure to UV radiation, these chlorine atoms are ...
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74
1-8 By analogy with its reaction with methane, write a balance ...
https://www.csus.edu/indiv/d/dixonr/c253/hw12sola.htm
CFCs are chlorofluorocarbons and were used for air conditioning, as industrial solvents, and foam blowing agents. They have no significant tropospheric sinks.
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https://www.csus.edu/indiv/d/dixonr/c253/hw12sola.htm
CFCs are chlorofluorocarbons and were used for air conditioning, as industrial solvents, and foam blowing agents. They have no significant tropospheric sinks.
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75
Wildfires can damage the ozone layer | Natural History Museum
https://www.nhm.ac.uk/discover/news/2022/march/wildfires-can-damage-ozone-layer.html
CFCs catalysed the breakdown of ozone, but were not themselves destroyed by the process. This allowed molecules of these compounds to ...
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https://www.nhm.ac.uk/discover/news/2022/march/wildfires-can-damage-ozone-layer.html
CFCs catalysed the breakdown of ozone, but were not themselves destroyed by the process. This allowed molecules of these compounds to ...
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76
Say true or false:Chlorofluorocarbons deplete the ozone layer ...
https://www.toppr.com/ask/en-us/question/say-true-or-falsechlorofluorocarbons-deplete-the-ozone-layer-in-the-atmosphere/
Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are ...
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https://www.toppr.com/ask/en-us/question/say-true-or-falsechlorofluorocarbons-deplete-the-ozone-layer-in-the-atmosphere/
Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are ...
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77
Do Hydrofluorocarbons Destroy Stratospheric Ozone?
http://www.ciesin.org/docs/011-552/011-552.html
Hydrofluorocarbons, many of which contain a CF3 group, are one of the major substitutes for the chlorofluorocarbons and halons that are being phased out ...
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http://www.ciesin.org/docs/011-552/011-552.html
Hydrofluorocarbons, many of which contain a CF3 group, are one of the major substitutes for the chlorofluorocarbons and halons that are being phased out ...
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78
CFCs Properties, Uses & Examples - Video & Lesson Transcript
https://study.com/academy/lesson/cfcs-definition-properties-uses.html
Due to their chemical properties, CFCs became useful as coolants and propellants. More commonly known as freon for refrigeration, CFCs are used ...
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https://study.com/academy/lesson/cfcs-definition-properties-uses.html
Due to their chemical properties, CFCs became useful as coolants and propellants. More commonly known as freon for refrigeration, CFCs are used ...
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79
You will get a text about the ozone layer and its impact on ...
http://uki.vdu.lt/wp-content/uploads/sinergija/EN/chemija/chemija4/Ozone%20Layer%20I%20grup+.pdf
the 1970s scientists found that CFCs (chlorofluorocarbons) could destroy the ozone layer. CFCs are chemicals that have been used in aerosol cans and fridges ...
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http://uki.vdu.lt/wp-content/uploads/sinergija/EN/chemija/chemija4/Ozone%20Layer%20I%20grup+.pdf
the 1970s scientists found that CFCs (chlorofluorocarbons) could destroy the ozone layer. CFCs are chemicals that have been used in aerosol cans and fridges ...
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80
UCSB Science Line
http://scienceline.ucsb.edu/getkey.php?key=2996
With a long life time like that, one CFC molecule can do a lot of damage, destroying ozone molecules for a long time. Even if we released no more ozone-harmful ...
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http://scienceline.ucsb.edu/getkey.php?key=2996
With a long life time like that, one CFC molecule can do a lot of damage, destroying ozone molecules for a long time. Even if we released no more ozone-harmful ...
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81
The Ozone Hole and Global Warming
https://www.ucsusa.org/resources/ozone-hole-and-global-warming
Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released ...
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https://www.ucsusa.org/resources/ozone-hole-and-global-warming
Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released ...
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82
Ban on CFCs protects plants' ability to mitigate climate change
https://www.ceh.ac.uk/news-and-media/news/Ban-on-CFCs-protects-plants-ability-to-mitigate-climate-change
CFCs damage the ozone layer, which shields Earth from the sun's ultraviolet (UV) radiation, and the discovery of a large hole in the layer above ...
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https://www.ceh.ac.uk/news-and-media/news/Ban-on-CFCs-protects-plants-ability-to-mitigate-climate-change
CFCs damage the ozone layer, which shields Earth from the sun's ultraviolet (UV) radiation, and the discovery of a large hole in the layer above ...
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83
Ozone-destroying CFCs could make late-21st-century comeback
https://www.livescience.com/cfcs-release-from-oceans-ozone-destruction.html
Chlorofluorocarbons (CFCs), the aerosol chemicals that tore a hole in Earth's protective ozone layer within years of their mass production, are ...
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https://www.livescience.com/cfcs-release-from-oceans-ozone-destruction.html
Chlorofluorocarbons (CFCs), the aerosol chemicals that tore a hole in Earth's protective ozone layer within years of their mass production, are ...
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84
Ozone 101: What Is the Ozone Hole? [Video] - SciTechDaily
https://scitechdaily.com/ozone-101-what-is-the-ozone-hole-video/
One chlorine atom can destroy 1000s of ozone molecules, and millions of tons of CFCs were pumped into the atmosphere from the 1920s through ...
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https://scitechdaily.com/ozone-101-what-is-the-ozone-hole-video/
One chlorine atom can destroy 1000s of ozone molecules, and millions of tons of CFCs were pumped into the atmosphere from the 1920s through ...
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85
Ozone: The Hole Truth | The Heritage Foundation
https://www.heritage.org/environment/commentary/ozone-the-hole-truth
The treaty came about over legitimate but overstated concerns that chlorofluorocarbons (CFCs, a then-widely used class of refrigerants) and ...
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https://www.heritage.org/environment/commentary/ozone-the-hole-truth
The treaty came about over legitimate but overstated concerns that chlorofluorocarbons (CFCs, a then-widely used class of refrigerants) and ...
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86
Water, Air and Climate Change Branch - Gov.bc.ca
https://a100.gov.bc.ca/pub/eirs/viewDocumentDetail.do?fromStatic=true&repository=EPD&documentId=5424
In B.C., halons cause greater damage to the ozone layer than do CFCs from automobile air conditioners. Methyl Chloroform. • Used mainly in industry — for vapour ...
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https://a100.gov.bc.ca/pub/eirs/viewDocumentDetail.do?fromStatic=true&repository=EPD&documentId=5424
In B.C., halons cause greater damage to the ozone layer than do CFCs from automobile air conditioners. Methyl Chloroform. • Used mainly in industry — for vapour ...
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87
Ozone depletion: substances - Canada.ca
https://www.canada.ca/en/environment-climate-change/services/air-pollution/issues/ozone-layer/depletion-impacts/substances.html
Chlorofluorocarbons ( CFC s), carbon tetrachloride, and methyl chloroform are important human-produced ozone-depleting gases that have been ...
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https://www.canada.ca/en/environment-climate-change/services/air-pollution/issues/ozone-layer/depletion-impacts/substances.html
Chlorofluorocarbons ( CFC s), carbon tetrachloride, and methyl chloroform are important human-produced ozone-depleting gases that have been ...
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88
Ozone safeguards hike global warming
https://www.telegram.com/story/news/local/north/2006/08/21/ozone-safeguards-hike-global-warming/53060782007/
CFCs destroy ozone, the atmospheric layer that helps protect against the sun's most harmful rays, and trap the earth's heat, contributing to a ...
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https://www.telegram.com/story/news/local/north/2006/08/21/ozone-safeguards-hike-global-warming/53060782007/
CFCs destroy ozone, the atmospheric layer that helps protect against the sun's most harmful rays, and trap the earth's heat, contributing to a ...
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89
01-08-03 KINGPIN IN OZONE DEPLETING CFCS IMPORT ...
https://www.justice.gov/archive/opa/pr/2003/January/03_enrd_005.htm
CFCs, which are used primarily as refrigerants and industrial solvents, are ozone depleting substances that are subject to strict ...
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https://www.justice.gov/archive/opa/pr/2003/January/03_enrd_005.htm
CFCs, which are used primarily as refrigerants and industrial solvents, are ozone depleting substances that are subject to strict ...
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90
Ozone - TN.gov
https://www.tn.gov/health/cedep/environmental/environmental-health-topics/eht/ozone.html
But this "good" ozone has gradually been destroyed by human-made chemicals referred to as ozone-depleting substances (ODS), including chlorofluorocarbons ...
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https://www.tn.gov/health/cedep/environmental/environmental-health-topics/eht/ozone.html
But this "good" ozone has gradually been destroyed by human-made chemicals referred to as ozone-depleting substances (ODS), including chlorofluorocarbons ...
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91
Earth's ozone layer threatened by new man-made gases
https://theconversation.com/earths-ozone-layer-threatened-by-new-man-made-gases-24168
... gases that are contributing to the depletion of the Earth's ozone layer. Three new Chlorofluorocarbons (CFCs), which act to destroy…
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https://theconversation.com/earths-ozone-layer-threatened-by-new-man-made-gases-24168
... gases that are contributing to the depletion of the Earth's ozone layer. Three new Chlorofluorocarbons (CFCs), which act to destroy…
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92
Destruction of Chlorofluorocarbons in a Cement Kiln
https://www.tandfonline.com/doi/pdf/10.1080/10473289.1997.10464068
CFCs were completely destroyed in the kiln un- ... Chlorofluorocarbons (CFCs) are ozone-depleting sub- ... lected CFCs are either reused or destroyed.
→ Check Latest Keyword Rankings ←
https://www.tandfonline.com/doi/pdf/10.1080/10473289.1997.10464068
CFCs were completely destroyed in the kiln un- ... Chlorofluorocarbons (CFCs) are ozone-depleting sub- ... lected CFCs are either reused or destroyed.
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