The article presents the results of measuring the luminescence of ambient air and a solution of an organic compound, when they are irradiated with a high-current pulsed electron beam with an average energy of Ee = 170 keV and a duration of 2 ns, formed by the RADAN-303 accelerator. It has been shown that under the action of UV radiation, the transformation of the Crystal Violet dye is only 2%. The addition of hydrogen peroxide leads to an increase in the phototransformation of the dye. The action of an electron beam on an aqueous dye solution is accompanied by a decrease in the intensity of air luminescence bands with an increase in the number of irradiation pulses. The results showed the degradation of both the dye itself and its transformation products under the action of an electron beam.