In the year 1839, Friedrich Schönbein (1799-1868) the German-Swiss chemist reached for the discovery of Ozone O3.
The Ozone layer is one of the earth atmosphere layers. The earth atmosphere consist of many layers, starting with Troposphere layer, next there is Stratosphere layer, followed by Mesosphere layer, then Thermosphere layer, till we reach Exosphere layer which is the farthest from earth. These were the five main layers that are determined according to their temperature. But there is also other layers which are determined due to other properties. As the Ozone layer, the ionosphere layer, the homosphere layer and the planetary boundary layer.
The Ozone layer exists in the lower part of the second layer Stratosphere. The Ozone layer consists of high concentration of Ozone, the Ozone layer extends between 20 to 30 Km, its thickness vary according to the seasons and the geography.
The Ozone layer main function is protecting the earth from the ultraviolet rays available in the sun rays.
In the year 1913, Maurice Charles Fabry (1867-1945) and Henri Buisson (1839-1905) the French physicists discovered the existence of the Ozone layer.
Through the years 1928 till 1958, Gordon Miller Bourne Dobson (1889-1976) the British physicist was able to reach for the Dobson unit, the Dobson unit is able to measure the atmospheric ozone density.
By the year 1976 the US Academy of scientists, announced that the Ozone layer is depleted. The main reason of the ozone layer depletion is the increase of the amount of chlorofluorocarbons.
In the year 1984, Joseph Farman born in 1930, the British geophysicist, along with Brian Gardiner and Jonathan Shanklin, the British meteorologists, they discovered the Ozone Hole. The Ozone hole is a part of the ozone layer which became thinner than it was supposed to be.