Effect of continuous 0.3 μL/L gaseous ozone exposure on fungicide residues on table grape berries

► Residues of 4 of 5 fungicides declined significantly during storage in air. ► Storage in the ozone atmosphere accelerated the decline rates of 3 of 5 fungicides. ► Fenhexamid declined in both air and ozone more rapidly than the other fungicides. ► Ozone treatment during storage has a potential for degrading contemporary fungicides.