Is Ozone depletion thickening the ozone layer?

No, depletion means thinning.

The ozone layer is being depleted by chlorofluorocarbons which decomposes in the presence of short wavelength ultraviolet radiation from the sun. the chlorine radical produce in this reaction reacts with the ozone. The oxygen atoms present in the stratosphere reacts with the ClO to produce more chlorine radical.t herefore one chlorine radical produce can destroy many molecules of ozones.Thus a chain reaction is initiated.