There is ozone at all altitudes. So "zero".
Ozone layer is formed at a certain height. It is because of the factors that are responsible for its creation.
Ozone layer is present at certain height in the stratosphere. It is the only characteristic of the layer of ozone.
The stratosphere is where the temperature increases with height. This is due to absorption of UV radiation by atmospheric ozone.
Some ozone is found at all elevations. The ozone layer is in the lower stratosphere, and is still a wide range of elevations, and has latitude and seasonal dependency as well.
The part of the stratosphere at a height of c.22 km/14 mi where most of the gas ozone (O3) is most concentrated. ozone is made by the action of ultraviolet light from the Sun on oxygen (O2) in the air.
Ozone layer is approximately 20 to 30 kilometres (12 to 19 mi) above Earth, though the thickness varies seasonally and geographically.
The average distance of the ozone from surface is 15 to 35 km. It can vary from region to region depending upon the height.
Orbit and ozone are space words. They begin with the letter o.
Could you? If we continue to decrease the amount of CFCs we are using and other things that could deplete the ozone layer then yes, it could begin to reseal in time.
The ozone depletion process began in the late 1970s and early 1980s with the discovery of the Antarctic ozone hole. This led to the realization that human activities, specifically the release of chlorofluorocarbons (CFCs) and other ozone-depleting substances, were contributing to the thinning of the ozone layer.
It is situated in all layers of atmosphere but mainly in stratosphere at a height of about 28km from the surface of the earth.
Anthropogenic (human-caused) ozone typically occurs at ground level and is a pollutant. It can harm respiratory health and the environment. Unlike stratospheric ozone, which forms a protective layer in the upper atmosphere, anthropogenic ozone does not provide a shielding effect.