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Hello Dear,
As per the given information it is difficult for us to answer your query.
If you are asking about the thickness of ozone layer then over the Earth's surface, the ozone layer's average thickness is about 300 Dobson Units or a layer that is 3 millimetres thick. Ozone in the atmosphere isn't all packed into a single layer at a certain altitude above the Earth's surface. Dobson is the unit of the measurement of the thickness of ozone layer.
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