Turbulent depletion of PAHs through processing by clustering, adsorption, desorption, and photodissociation in the disc at 1 Myr and 5 Myr after formation. The calculations were performed for coronene C₂₄H₁₂, bisanthene C₂₈H₁₄, and ovalene C₃₂H₁₄. Strong (α = 10⁻²) and intermediate turbulence (α = 10⁻³) cause a depletion of recoverable PAHs by a factor of 50–500 compared to the initial ISM abundance in the model STD. At distances larger than 50 au we do not find a layer where adsorption and therefore a full cycle can happen. For larger species than ovalene, the depletion increases when the PAH species is larger.