The depletion of the ozone layer caused by chlorofluorocarbons cfcs

Ozone depletion begins, and the ozone “hole” appears natural events such as volcanic eruptions can strongly influence the amount of ozone in the atmosphere however, man-made chemicals such as cfcs or chlorofluorocarbons are now known to have a very dramatic influence on ozone levels too. The ozone layer is about 300 to 500 du thick on average, which is about the thickness of two stacked pennies the effect of cfcs scientists first began to realize the potential for chlorine to interact destructively with ozone in the early 1970s, and sherwood rowland and mario molina warned of the danger that cfcs posed to the ozone layer in 1974. But the one and the most important reason for ozone layer depletion is the production and emission of chlorofluorocarbons (cfcs) this is what which leads to almost 80 percent of the total ozone layer depletion. The chlorofluorocarbons (cfc) refrigerants containing chlorine have been found to be one of the major causes of the destruction of the ozone layer ozone layer is located in the earth’s stratosphere at the distance of 11 km from the surface of the earth.

By proving the link between cfcs, ozone depletion and temperature changes in the antarctic, professor lu was able to draw almost perfect correlation between rising global surface temperatures and cfcs in the atmosphere. Ozone depletion 739 words | 3 pages the ozone layer is a specific area in the stratosphere of maximum ozone concentration ozone in the stratosphere forms naturally and protects us from damage that can be caused by solar radiation such as skin cancer. Causes of ozone layer depletion: the main cause of ozone layer depletion is the build-up of cfcs (chlorofluorocarbons) in the atmosphere when the cfcs reach the upper atmosphere, high uv radiation reacts with these and releases chlorine atoms. Ozone depletion, gradual thinning of earth’s ozone layer in the upper atmosphere caused by the release of chemical compounds containing gaseous chlorine or bromine from industry and other human activities.

The gaping hole in the ozone layer of the atmosphere over the antarctic was caused primarily by high concentrations of ozone-depleting chemicals called cfcs the vast hole in the ozone was discovered by scientists in the 1980s, who upon discovering the dramatic loss in ozone cover, set to work. View the latest status of the ozone layer over the antarctic, with a focus on the ozone hole satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone. Scientists were able to identify a problem (the depletion of the ozone layer) and its cause (chlorofluorocarbon gases or cfcs) and within two years, politicians took swift action to reverse course to protect our planet and its inhabitants. Ozone layer depletion study guide by radhikareddy includes 77 questions covering vocabulary, terms and more quizlet flashcards, activities and games help you improve your grades. The ozone layer is a belt of the naturally occurring gas ozone it sits 93 to 186 miles (15 to 30 kilometers) above earth, and serves as a shield from the harmful ultraviolet b (uvb) radiation.

Cfcs, ozone and free radicals cfcs – what is so good about them (before we get into the problems they cause) a cfc is a covalently bonded relatively small molecule of carbon, chlorine and fluorine atoms (chlorofluorocarbon) if enough energy is supplied by heat or by visible/uv electromagnetic radiation, or the is weak enough, a covalent bond can break in two ways. The montreal protocol on substances that deplete the ozone layer (a protocol to the vienna convention for the protection of the ozone layer) is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. Causes of ozone layer depletion the primary reason behind the reduction of the ozone layer is the use of hydro- chloro-fluoro-carbons (hcfcs) and chloro-fluoro-carbons ( cfcs) they are compounds of chlorine, fluorine, and carbon such as cf 3 cl, chcl 2 f etc.

The depletion of the ozone layer caused by chlorofluorocarbons cfcs

Chlorofluorocarbons (cfcs) are the primary cause for the ozone layer depletion industrial products including solvents, soaps, spray aerosols, insulating foams, ‘take-away’ containers and cooling utilities such as refrigerators and air conditioners use chlorofluorocarbons (cfcs. The main cause of ozone depletion and the ozone hole is manufactured chemicals, especially manufactured halocarbon refrigerants, solvents, propellants and foam-blowing agents (chlorofluorocarbons (cfcs), hcfcs, halons), referred to as ozone-depleting substances (ods. Once they get there they destroy ozone molecules and cause the ozone layer to become depleted or thinner cfcs get banned in 1974 scientists sherry rowland and mario molina discovered the link between the depletion of the ozone layer and cfcs. The depletion of the ozone layer is mainly caused by gasses called chlorofluorocarbons (cfc) cfc are used in some refrigerator's, aerosol's conditioner's, styrofoam container 's and fire extinguisher's.

  • The ozone layer depletion occurred due to release of cfcs and hfcs in the atmosphere their use is now been banned all over the world this is causing the recovery of ozone layer and it is supposed that it will completely recover in a span of 100 years.
  • The latest ozone layer depletion news is included at the foot of the page depletion of the ozone layer: the wearing out or destruction of the ozone in the stratosphere the ozone layer is a belt of the naturally-occuring gas 'ozone' that sits at an altitude of between 15 and 30 kilometers above the earth.

The ozone layer has historically protected the earth from the harmful uv rays, although in recent decades this protection has diminished due to stratospheric ozone depletion figure \(\pageindex{1}\): these images from the total ozone mapping spectrometer (toms) show the progressive depletion of ozone over antarctica from 1979 to 1999. Cfcs (chlorofluorocarbons), halons, ch 3 ccl 3 (methyl chloroform), ccl 4 (carbon tetrachloride), hcfcs (hydro-chlorofluorocarbons), hydrobromofluorocarbons and methyl bromide are found to have direct impact on the depletion of the ozone layer these are categorized as ozone-depleting substances (ods. These gases bring chlorine and bromine to the stratosphere, which cause depletion of the ozone layer for example, chlorofluorocarbons (cfcs), once used in almost all refrigeration and air conditioning systems, eventually reach the stratosphere, where they are broken apart to release ozone-depleting chlorine.

the depletion of the ozone layer caused by chlorofluorocarbons cfcs 1) ultraviolet radiation strikes a cfc molecule and causes a chlorine atom to break away 2) the chlorine atom collides with an ozone molecule and steals an oxygen atom to form chlorine monoxide and leave a molecule of or ordinary oxygen. the depletion of the ozone layer caused by chlorofluorocarbons cfcs 1) ultraviolet radiation strikes a cfc molecule and causes a chlorine atom to break away 2) the chlorine atom collides with an ozone molecule and steals an oxygen atom to form chlorine monoxide and leave a molecule of or ordinary oxygen. the depletion of the ozone layer caused by chlorofluorocarbons cfcs 1) ultraviolet radiation strikes a cfc molecule and causes a chlorine atom to break away 2) the chlorine atom collides with an ozone molecule and steals an oxygen atom to form chlorine monoxide and leave a molecule of or ordinary oxygen. the depletion of the ozone layer caused by chlorofluorocarbons cfcs 1) ultraviolet radiation strikes a cfc molecule and causes a chlorine atom to break away 2) the chlorine atom collides with an ozone molecule and steals an oxygen atom to form chlorine monoxide and leave a molecule of or ordinary oxygen.
The depletion of the ozone layer caused by chlorofluorocarbons cfcs
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