Is destruction of Ozone Layer reversible?

Question

if so under what conditions.....

Answer 1

It has been under the reversal process since the ban on CFC's began. The term destruction is not correct, the CFC's are interacting with the O3 and are basically occupying them so the ozone can not block the UV light. The conditions for this to occur are only above the south pole coming out of its winter because very very low temperatures are needed. Given another 50 years, the ozone should be close to better because we do not put very much CFCs into the atmosphere anymore.

Answer 2

First of all the concentration of ozone in the "ozone hole" above Antarctica has never reached zero ppm, so to say there has been a destruction is misleading.

Second, that "hole" has increased and decreased in size since they have been able to detect it. Before there were satellites and high altitude balloons that were able to detect low concentrations of ozone, we just don't know what the condition of the ozone was. For all we know it might have always been like that.

Third: even though the concentrations of ozone had been decreasing on the average, year-over-year since the mid-80's they have not been decreasing every year, and some indications are that they are on the rise (year over year).

So... it may be reversing itself -- as in it's part of a natural cycle. Isn't nature wonderful?

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Answer 3

At ground level the average concentration of ozone is around 1 part per million (ppm). At the ozone "layer", the concentration is around 6 ppm. It has been shown that the use of chloroflurocarbons (CFC's) has acted as a catalyst to cause the faster destruction of ozone.

But ozone is constantly being produced in the upper atmosphere by the sun, so the notion that it cant be replenished is foolish. We just need to make sure that the ozone being produced stays in the atmosphere and isn't broken down or consumed.

Answer 4

Once ozone layer is destructed it can not be reversed at any cost at least in present day. There is no treatment only precaution can be taken. So save ozone layer and save earth from Ultraviolet radiation.

Answer 5

Since the chemical half-life of ozone is about 21 hrs., and we still have an ozone layer, the reversal of the destruction of the ozone layer must be a daily event. It is the MANUFACTURE of ozone that mainly protects us from UV-B radiation, although there is a secondary O3 cycle.

Some UV-B must reach the surface of the Earth in order to react with skin cells to produce vitamin D, the "sunshine vitamin", which is valuable in the prevention of rickets, a calcium-deficiency bone disease thought to have been conquered until protection of our children from UV-B sunlight and weaning them from milk resulted in an uprearing of the disease.

Answer 6

First, to say that the Ozone layer is being attacked by CFC is WRONG!! CFC are heavy molecules that can't reach the higher atmosphere by lack of proper air density level! So all this thing about the CFC has been made in laboratory ONLY!
The Ozone holes are changing over the ion concentration in the atmosphere of both poles, and is related to the Earth Magnetic field activity. So human are not the cause of the current situation at the poles. Your teacher may tell many, otherwise but they, in turn listen to who??

Answer 7

Ozone is created from oxygen with the equation 3O2<=>2O3. This equation is under equillibrium, meaning both states exist. All the stuff in the upper atmosphere, the PFC's and the sulfates and all that stuff shifts the equillibrium away from the ozone side. As soon as we can get rid of all the stuff in the air, it should equillibriate back to the original equillibrium position, and the ozone layer will be regenerated.

Answer 8

Ozone is O3 and is broken down into O2 by CfC's.
There is an equilibrium between O3 & O2,which is disturbed by CFC's.
If we reduce the use of CFC's then the O2 will again be converted into O3 by UV-rays & the ozone layer is reformed.

Answer 9

YES,by growing trees the ozone layer can protected from damage.

Answer 10

I had a physics professor who told us that the Ozone layer stopped shrinking once the ban on CFC's was enacted. Can't believe everything you hear though.