The article analyzes the amount of dissolved ecotoxicants in the sample taken from the solid waste obtained during the process of hydrogenation of petroleum oils. Solid waste is the processed or burned waste of AlCoMo and AlCoNi catalysts used during the process. Based on the results obtained, the environmental impact of the solid waste was assessed. The amount of volatile ecotoxicants in the solid waste sample was determined by spectral methods and shown in tabular form. Based on the results obtained, it is possible to assess the environmental impact of solid wastes generated during the technological process at the hydrogen oil treatment plant.