Air 2018 test results at the Ryazan tannery. In 2018, within the framework of inspections organized by the Office of Rosprirodnadzor in the Ryazan Region, laboratory studies were carried out on the sources of the enterprise's emissions by the independent accredited laboratory "TsLATI for the Central Federal District". At the same time, no excess in the maximum permissible emissions of hydrogen sulfide and ammonia at these sources into the atmospheric air was detected, as evidenced by the protocols of the results of the study of industrial emissions No. 223 / 3-225 / 3 dated 09/07/2018.