Why is the ozone layer is broken over antartica? no1 lives there?

Question

dnt understand why the ozone has a hole over antartica, when the gas thats destorying it comes from cities and homes.

Answer 1

This might help:http://au.encarta.msn.com/encyclopedia_7...

Answer 2

It has almost completely healed now. Ozone destruction is no longer a major environmental issue.

Answer 3

This actually has to do with a unique meteorological occurance that is only found at the south pole.  Due to the magnetic forces that surround our planet a lot of pollutants including CFC's are attracted to the south pole.  This is kind of the sink for these pollutants because they all seem to end up there.  What happens is that through a complex chemical reaction a CFC's constituant ClO is also found in high quantities.  

The unique meteorlogical effect is that this pollutant (ClO) attaches to the clouds in the antarctic and can stay there for a very very long itme.  After a while ClO begins to build up in very very high quantities.  This is a highly reactive compound because when solar radiation hits it the Cl molecule and the O molecule split.  The chlorine then goes on to deplete ozone by stripping and O molecule from the O3.  This happens much more severely in the antarctic because the pollutant stays attached to the clouds for such long periods of time.  OTher halogens like bromine and flourine also play a role, but Cl from ClO and CFC's by far play the biggest part....

Answer 4

the ozone layer in Antarctica is the thinest so it's more weak to the CFC's thats why.