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The rates of depletion of ozone are falling. It is because CFC's have been banned.
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∙ 9y ago
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Which country is most affected by ozone layer depletion show in map?
The ozone hole usually only affects Antarctica directly, and it is not considered to be a country. However, it has appeared over areas like New Zealand, Australia, the southern tip of South America (which includes Argentina and Chile) and the Falkland Islands (a British territory) for brief periods of time. There is also an ozone-depleted area in the Arctic, but this only occurs for a few days at a time.
Satellite pictures show holes in ozone layer?
Newspapers reports give a full insight into what is happening in ozone. The ozone hole is a hole in ozone layer.
Where is ozone depletion the most noticeable?
It is most important and most noticeable away from the equator. Records of ozone depletion date back to the early 1700s (tree rings, where trees show a chemical produced when exposed to UV-B).
How do you make cardboard models to explain the causes of hole in the ozone layer?
A cardboard model in the form of cylinder can be made. The top circle being the ozone layer and the bottom being the land. You can show all phenomenon in the middle.
What are the solutions to the problem of ozone depletion?
We could stop making chemicals that destroy ozone. We could stop buying products that are made in countries that are not bound by agreements to reduce or eliminate ozone destroying chemicals. About 2/3 of the man-made ozone destruction is related to CFC-11 and CFC-12.
How do you use the word depletion in a sentence to clearly show its meaning?
Continued use of aerosol cans will lead to depletion of the ozone layer.
What could happen if ozone depletion continues?
The ozone layer is expected to change on a seasonal basis, with some longer term fluctuations, but catostrophic depletion resulting from the release of CFCs should no longer be anticipated, since the manufacture of CFCs for industrial use has been banned. Recent images show that the seasonal Antarctic hole in the ozone layer is becoming smaller, providing evidence that the global ozone layer is recovering. Had the depletion of the ozone layer been allowed to continue, dangerous levels of ultraviolet radiation would have reached the earth's surface.
Which country is most affected by ozone layer depletion show in map?
The ozone hole usually only affects Antarctica directly, and it is not considered to be a country. However, it has appeared over areas like New Zealand, Australia, the southern tip of South America (which includes Argentina and Chile) and the Falkland Islands (a British territory) for brief periods of time. There is also an ozone-depleted area in the Arctic, but this only occurs for a few days at a time.
Satellite pictures show holes in ozone layer?
Newspapers reports give a full insight into what is happening in ozone. The ozone hole is a hole in ozone layer.
Where is ozone depletion the most noticeable?
It is most important and most noticeable away from the equator. Records of ozone depletion date back to the early 1700s (tree rings, where trees show a chemical produced when exposed to UV-B).
How do you make cardboard models to explain the causes of hole in the ozone layer?
A cardboard model in the form of cylinder can be made. The top circle being the ozone layer and the bottom being the land. You can show all phenomenon in the middle.
What are the solutions to the problem of ozone depletion?
We could stop making chemicals that destroy ozone. We could stop buying products that are made in countries that are not bound by agreements to reduce or eliminate ozone destroying chemicals. About 2/3 of the man-made ozone destruction is related to CFC-11 and CFC-12.
How is global warming causing the depletion of ozone over Antarctica?
The ozone does not deplete faster over Anarctica. The "ozone hole" that forms there is naturally larger. Since it is manned year round complete with scientific instrumentation, and it does form an "ozone hole", it is easier to study the affects of ozone depletion on a region that does not have much ozone for a few months each year. Depletion affects the whole planet, but where the Sun shines intensely year-round (like the equator), ozone is made as fast as it is destroyed.There are only two spots on our planet that ever show ANY depletion. The larger spot currently is over the Antarctic and the smaller one, at different times of the year, over the arctic.This is because the only reason their is ever a thinning layer is because the sun cannot reach the ozone layer during these periods. The "hole" (a serious miss term as this is a thinning spot) starts about two weeks after the sun is no longer able to reach this layer. The total "hole" time is about four months. This has been occurring since the beginning of time as far as we are able to tell. The worst condition that we have seen the "hole" in appears to have occurred in the 1800's, before man had ever used any CFC's.The reason that the "hole" is larger currently in the Southern Hemisphere verses the Northern is due to location of our planet relative to the sun during the sunless portion of each cycle. The orbit of our planet is not a perfect circle. Some periods of the year we are much closer to the sun then other periods. There is also the issue of angle to the sun. These combine to give us (at present) a larger thin area in the South, then in the North. The equator has almost no loss at any time of the year.
Can you show me some good slogans for protection of ozone layer?
As the ozone layer fritters away, help make a difference everydayThink SPF 45 is too thick? Wait until we have SPF 6000 when the Ozone is gone.Earth is an Oh!!! zone, without ozoneReduce depletion of ozone, otherwise you will be in the Redzone.• Earth without ozone is like a king without a throne."""I PERSONALLY THINK THAT THESE SLOGANS ARE THE BEST!! BECAUSE I HAVE SEARCHED TE WHOLE INTERNET BUT I AM NOT ABLE TO FIND BETTER THAN THESE ...!! BUT IF YOU ARE PLEASE IMPROVE MY ANSWER SO THAT OTHERS CAN GET NICE ANSWERS ANS PLEASE BE KIND ENOUGH NOT TO RITE ABUSES!!!
Does air pollution come from the ozone layer?
no it comes from us and goes to the ozoneAnswer:Studies downwind of the Rockies in ALberta show that stratospheric ozone can be downwashed to the surface (troposphere), once at that level ozone is a pollutant.
Have regulations placed against certain chemicals to reduce damage to ozone layer succeeded?
i am pretty sure that the regulations have succeeded in reducing ozone damage as studies show that the ozone holes are becoming smaller
What causes depletion of the ozone layer?
Increases in the substances that decrease the amount of ozone present. Free radicals, CFCs, chlorofluorocarbons (in aerosols and such). ozone depletion occurs when the natural balance between the production and destruction of stratospheric ozone tipped in favor of destruction. Ozone depletion is caused by the Ozone Depleting Substances(ODS) which are man-made chemicals and stay in the stratosphere causing the rate of depletion of ozone greater than its rate of formation. CFCs The release of CFCs into the atmosphere causes the ozone atoms to break down when warmed. Notably, the layer is depleted dramatically when the sun fails to rise over the polar regions, causing the hole in the ozone layer. The most common factor is a lack of sunlight, although the greatest single event to cause ozone depletion has been noted as a solar mass ejection. These flares tear through the ozone layer and can take years to correct. You can read the scientific description, below. The main causes of ozone layer depletion are: water vapor (Nature and Man),CFC's (ChloroFluoroCarbons, Man),halons (Man),carbon tetrachloride and methylchloroform (found so far in increasing amounts at lower altitudes, Nature and Man), andbromine oxide (volcanos), and bromine from manmade sources. Manmade chemicals like chlorofluorocarbons, bromofluorocarbons and water vapor the major depleters of the ozone layer. There is evidence that natural sources of bromides and chlorides from ocean spray and volcanos can contribute to the depletion of the ozone as well as the Chloro- and Bromo- fluorocarbons. It is thought that these levels have been constant from the ocean and the "normal" ozone levels are in balance with this natural depletion. The simplified reactions are: CFCl3 + hν -> CFCl2 + Cl Cl + O3 -> ClO + O2 ClO + O3 + hv(?) -> Cl + 2 O2 In words: Chlorofluorocarbons undergo dissociation in the presence of sunlight to produce a chlorine ion molecule. This molecule combines with ozone to reduce it to oxygen and a ClO molecule.The ClO attacks another Ozone molecule producing atomic oxygen and a chloride ion. The recreation of the Cl ion and the reactive ClO lets the chlorine reform and participate through many cycles. The role of water vapor is that it blocks one path of ozone formation (temporary storage of an oxygen atom on an N2 molecule, N2O*, becoming stable N2O which is mistakenly presented as an ozone depleter but is a water scavenger) and increases ozone decay (via production of hydrogen peroxide, H2O2). Noctilucent clouds show that water vapor has been increasing near the ozone layer over the last 100+ years. Only ozone (not oxygen) in our current atmopshere can absorb UV-B radiation which is very very harmful for all the living organisms when it is at elevated levels. Potential impacts are death to algae and phytoplankton... all surface life in eventually, diseases and cancer. The fluorine in some of these compounds does not contribute to the destruction of ozone. Ozone cannot displace fluorine from whatever molecule it is joined to. The largest player of both Man's and Nature's depletion of ozone is water vapor. The largest player of solely Man's efforts to the depletion of ozone is the CFCs used late in the 20th century, and still being made in the third world. These compounds are so stable, they are only removed from the air in the "ozone layer". The concentration of ozone at any point in the atmosphere, is the result of a balance between reactions that make ozone, the natural decay of ozone, and destruction of ozone by other compounds. With the Montreal protocol to ban ODS (ozone depleting substances) releases the present atmospheric load of brominated and chlorinated substances should decrease in time. Global warming and ozone depletion are not the same problem. Aside: In preparing for nuclear war the USA removed all Freon cooling systems from its atomic bomb carrying ICBMs so the the ozone layer would not be affected during a missile strike. The amount of ozone at any point is a balance of those three processes. Production / decay / consumption. "ozone depleting substances" is more generic, since other chlorine- and bromine-containing molecules, which are produced by Man, have been found "up there" too. Note that CFCs are not "produced by aerosols", but were intentionally manufactured for the purposes of refrigerant or aerosol propellant. Not too many countries are still making / using CFCs. The amount of ozone in the atmosphere in any given volume is the summation of: (+) photoproduction of oxygen into ozone.(+) photoactivation and decay of N2O* into N2 and ozone.(-) destruction of ozone with time.(-) increase in rate of destruction by increasing temperature.(-) destruction of ozone by water vapor.(-) destruction of ozone by other compounds / catalysts.(+/-) diffusion of ozone into or out of the volume being considered. So thinning results from a reduction in 1 and/or 2, an increase in any of 3 thru 6, or 7 ozone bleeding out into other spaces (seen adjacent to the ozone hole). Below is a link that talks about CFC chemistry, about halfway down the page. The largest known thinning of ozone occurred in September of 1859 due to solar activity. Lack of sunlight is the known primary cause of the thinning area above each pole. No thinning has occurred over equatorial areas.
