why is the ozone hole over only the southpole?

Answer 1

Since most ozone-depleting substances are released in the northern hemisphere, a common question is why the ozone hole occurs over the Antarctic. The first part of the answer is that even though most of these chemicals are heavier than air, regardless of where they're released, they mix throughout the troposphere over about a year, and then mix into the stratosphere in 2-5 years. The second part of the answer is that although the overall process is similar between global ozone depletion and the ozone hole, there are two different types of ozone depletion chemistry. Both types are important, but the ozone hole seems to grab most of the attention.

The first kind is called homogeneous depletion; resulting from reactions as gases mix together, it is responsible for the reduction in global ozone levels. The 5-10% drop in ozone over the US is an example of homogeneous chemistry.

The second kind of ozone depletion chemistry, called heterogeneous, causes the radical destruction of ozone over the Antarctic each spring that we call the ozone hole. It results from reactions on the surfaces of ice particles. The existence of these particles, and the seasonal and geographic location of the hole, all result from a combination of meteorological and other effects that are specific to Antarctica at that time of year:

Answer 2

Wrong U want me to believe that all the CFC get together and makes a mad dash to the south pole at the exact time every year. I don't think so , the holes in the ozone are perfectly normal. The solar winds react with the magnetic field and the beta particles are attracted to the north pole the Apha particles are attracted to the south pole. The hole at the south pole are caused by Apha particles and they are much larger than the beta particles . this makes the north pole negative and the south pole positive which places a large charge across the earth,this forms the ozone layer or more correct the Van Allen belt that protects us from the radiation.

Answer 3

Because the ozone destroying reactions can only take place at temperatures below -180F (its true check it out). The only place on Earth where it get this cold is in the stratosphere on the South Pole.