can you tell me how big the ozone hole is????
452155
the antarctic ozone "hole" varies in size- currently by the best estimate I can find it is in the neighborhood of 7 million square miles- supposedly the CFC ban will help to "heal" the thing- but, a couple of catches to that-\n1. the Chinese still use CFC refrigerants, since CFC refrigerants can be "patented" there, assuring DuPont of continued profits on them.\n\n2. when I took my first refrigeration repair class over 30 years ago, the instructor warned us NEVER to vent a refrigeration system in a basement because the stuff was heavier than air and would displace air in the basement, suffocating you.\n\n Considering the warning that the stuff is heavier than air, and the fact that more change in the size of the hole occurs in conjunction with major volcanic activity than any other time, maybe the "change to safer refrigerants" was more about ensuring Major Corporate profits than about the "ozone hole"- check the patent information on "Freon" and "134a" refrigerants, and remember that "Freon" is heavier than air.\n\n Oh, and what is stated to "cause damage" to the ozone layer, is that "CFCs" break down under high level UV to release chlorine molecules which bond with ozone molecules, and then read about WW1- where they used chlorine gas as a weapon- because it was heavier than air and 'filled' trenches causing suffocation of the troops.\n\nif these chemicals are heavier than air, how are they getting up there?
1051065
I recommend going to NOAA's Web site. Try this link, I hope this helps you. http://www.ngdc.noaa.gov/mgg/image/2minrelief.html
1065551
The ozone layer is thining through incresed pollutio by planes brought about by a peak in flyers, green house emissions, increased industrial pollution, forest degradation. all these allow more UV light penetration into earth and will continue to increase unless we stop polluting the environement.:(
81620
I am a Technicain but,  here is a relative link that may give you more info on Ozone.
212469
Stratosphere\nThe stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. Compared to the troposphere, this part of the atmosphere is dry and less dense. The temperature in this region increases gradually to -3 degrees Celsius, due to the absorbtion of ultraviolet radiation. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer. Ninety-nine percent of "air" is located in the troposphere and stratosphere. The stratopause separates the stratosphere from the next layer.\n\nMesosphere\nThe mesosphere starts just above the stratosphere and extends to 85 kilometers (53 miles) high. In this region, the temperatures again fall as low as -93 degrees Celsius as you increase in altitude. The chemicals are in an excited state, as they absorb energy from the Sun. The mesopause separates the mesophere from the thermosphere.\n\nThe regions of the stratosphere and the mesosphere, along with the stratopause and mesopause, are called the middle atmosphere by scientists. This area has been closely studied on the ATLAS Spacelab mission series.
532820
Ozone consists of unstable 3-atom oxygen molecules. In the ozone-oxgen cycle, UV light splits oxygen molecules into individual atomic oxygen.  The individual atoms will then bond with 2-atom oxygen molecules to create ozone.  When ultraviolet light strikes the ozone molecule, it splits back into molecular oxygen and a single oxygen atom, and the cycle repeats.\n\nIt is this photochemical reaction that causes the UV to be "used up" in making and breaking ozone, and thus reducing UV intensity at the Earth's surface.\n\nUltraviolet light in the range of 100-320nm is most abosrbed by the ozone layer.
43774
The Ozone Hole\n\nAnd we can indeed have an 'Antarctic Ozone Hole' and an 'Artic Ozone Hole'
67173
About 5 and a half litres, apparently - http://ask.yahoo.com/ask/20000612.html
308119
You have a misconception as to what an ozone layer is.  Ozone is a gas and is found throughout the atmosphere, even at ground level.  The ozone layer is the range in the atmosphere where ozone levels are the highest.  Oxygen O2 is present in the ozone layer as well (as are all other atmospheric gasses).  You should also note that in the ozone layer there isn't actually a whole lot of ozone, just more than there is anywhere else.  I think it's around 5 parts per million; meaning there is 1 molecule of ozone for every 200,000 other molecules.  There isn't a blanket of ozone, it's just an area where ozone is 5-10ppm instead of 1ppm or less.  \n\nWhy does most of it stay where it is?  Ozone is a somewhat unstable molecule and the same mechanism that typically forms ozone also breaks it down.  Simply, O2 gets hit by some photons of the right energy (some kind of UV light) and is split into O and O, one (or both) of those O's bonds to another O2 molecule to form O3, ozone.  Sooner or later, that O3 gets hit by the right energy of UV light and one of the O's break off to form O2 and a spare O which will find another O2 to bond with and repeat the cycle.  A small percent of the ozone does drop into the statosphere (where we live).
733895
From Glenn Kawesch:\nThe layer of atmosphere that lies about 15 to 50 kilometres above the Earth's surface. In the stratosphere, the temperature rises with increasing height, which is the opposite of the situation in the lower atmosphere. Ozone occurs in minute quantities throughout the full depth of the atmosphere, but its concentration peaks within the stratosphere at an altitude of about 35 kilometres. This is referred to as the ozone layer. There is little up-and-down air movement in the stratosphere, so the ozone layer stays in position.\n\nGlenn Kawesch
912296
False. The ozone layer is contained mostly in the stratosphere, but is actually located at the lower layer of the stratosphere, adjacent to the troposphere. The mesosphere is situated above the stratosphere.
782350
http://www.npr.org/templates/story/story.php?storyId=5323928\n\n14 miles long
765885
I have no idea what you are asking.  Argon is 0.934% of the atmosphere.  Is that what you wanted?
569862
the depletion of the ozone layer
323732
I hope you mean the ozone layer, rather than a lair!\n\nBut, no, that is not true, and whoever told you that is now laughing at you!
345675
The Recipe For Ozone Loss\n\nTo summarise then, we have looked at the 'ingredients' or conditions necessary for the destruction of ozone that we see in Antarctica. The same applies more or less to the loss of ozone in the Arctic stratosphere during winter. Although in this case the loss is not nearly so severe.\n\nTo recap then, the requirements for ozone loss are:\n\nThe polar winter leads to the formation of the polar vortex which isolates the air within it.\n\nCold temperatures form inside the vortex; cold enough for the formation of Polar Stratospheric Clouds (PSCs). As the vortex air is isolated, the cold temperatures and the PSCs persist.\n\nOnce the PSCs form, heterogeneous reactions take place and convert the inactive chlorine and bromine reservoirs to more active forms of chlorine and bromine.\n\nNo ozone loss occurs until sunlight returns to the air inside the polar vortex and allows the production of active chlorine and initiates the catalytic ozone destruction cycles. Ozone loss is rapid. The ozone hole currently covers a geographic region a little bigger than Antarctica and extends nearly 10km in altitude in the lower stratosphere.
67966
Ozone is produced by sunlight. There is less light at the poles (due to the earth's tilt), therefore there are holes there. Very little to do with man made gasses at all. Just one more "theory" with little or no basis in truth.