The annual "hole" in the ozone layer we see at the poles during the end of the winter months is due to a lack of sunlight reacting with the available oxygen. Once the sunlight returns the hole quickly disappears and the ozone levels in teh upper atmosphere return to normal.
Ozone is constantly being reformed by UV-C from the Sun (and broken down by UV-B from the Sun, and contaminants). So the ozone layer will come to "full strength" when the extra Man-made contaminants have been removed.
And there will still be an ozone hole at the pole that is experiencing later winter / early spring.
The ozone layer heals itself fairly quickly after the sun returns to the area each year. The "hole" itself is only present for a short period of time at the end of each winter due to a lack of sunlight to react with oxygen. Wherever there is sunlight and oxygen, we will always have ozone.
Although CFCs are no longer manufactured for industrial use, large quantities of the gas remain in refrigerators and air conditioning units. Even as regulations require that the gas be captured from discarded units, there will always be leakages, as well as those who choose to maximise profits by simply letting the gas escape.
Even after there is no longer any release of CFC gases, they will continue to be present in the atmosphere until such time as they are absorbed by natural processes. Until this happens, there will continue to be some depletion of the earth's ozone layer. Fortunately atmospheric CFC levels have fallen, and the ozone layer is at least beginning to recover.
It is very important for ozone to heal. As if ozone does not heal, the life on earth would be ended by UV rays.
The ozone layer is not small. The large concentration of ozone is destroyed by ozone hole. It will thus take time to heal.
See "When will the ozone layer be gone?"
Cfcs have a long atmospheric lifetime. because of this it will take many decades before the ozone layer returns to its former concentration.
It will take a long time. But if you stop CFC's, the disappearing will stop too.
The ozone has very very small amount. It is just present as the ozone layer.
The ozone layer is constantly being renewed by available oxygen, and UV-C from our Sun. UV-C and UV-B from the Sun also destroy ozone, but so do contaminants (and time). So "repairing itself" involves getting rid of contaminants. Some contaminants take decades to eventually leave the vicinity of the ozone layer, and nothing we can do will accelerate that process (and leave the ozone layer intact). So all we can do is wait, and stop adding old (or new) contaminants to the air.
See "When will the ozone layer be gone?"
Cfcs have a long atmospheric lifetime. because of this it will take many decades before the ozone layer returns to its former concentration.
It will take a long time. But if you stop CFC's, the disappearing will stop too.
The ozone has very very small amount. It is just present as the ozone layer.
People take ozone seriously because it is a serious matter. Ozone layer is a very important part of our atmosphere and it is getting depleted.
Ozone layer depletion takes place on PSC's. These are frozen clouds.
The ozone layer is constantly being renewed by available oxygen, and UV-C from our Sun. UV-C and UV-B from the Sun also destroy ozone, but so do contaminants (and time). So "repairing itself" involves getting rid of contaminants. Some contaminants take decades to eventually leave the vicinity of the ozone layer, and nothing we can do will accelerate that process (and leave the ozone layer intact). So all we can do is wait, and stop adding old (or new) contaminants to the air.
To save the ozone layer we must take the following steps:Plant more treesReduce the use of CFC's.
to stop any damages to the ozone layer we can take better care of our resources
To save the ozone layer we must take the following steps:Plant more treesReduce the use of CFC's.
Ozone is changing. It is because of various factors which take place in the environment.
Most human activities in the ozone layer take place on their way through it, to or from space. We are testing yet more aircraft that will rip through it and spew more water vapor into the ozone layer from above, but we are not there yet. Most of what we do to the ozone layer drifts up from the ground, and our furious toings and froings.