[en] Monitoring of radioactivity in the environment of the pit ASSE was continued as in the previous years and did not show any increase or deviation as compared to the data of last year. The measured values all were in the range of the natural environmental radioactivity. The measurement of the local dose performed for the first time showed an annual average value of about 63 mR, lying below the average external radiation exposure in the Federal Republic of Germany. The personnel assigned to storing of radioactive waste has continuously been monitored according to the Radiological Protection Ordinance. There were also measured within the scope of the operational radiological protection service the local dose, the local dose rate, and the activity of the pit air. There was no indication for the permissible personnel doses and limits of activity for occupationally exposed persons to have been exceeded. In the exhaust air of the salt mine the nuclides ³H, ¹⁴C, ¹²⁹I, ²¹⁰Pb, and the short-lived daughters of ²²²Rn could be detected. The release rates determined resulted in concentrations in the environment of the mine lying far below the permissible limits. Also in the year 1978 the radiation exposure associated with the storage of radioactive waste in the salt mine ASSE resulted in an exposure not worth mentioning, neither for the personnel nor for the population of the surrounding places. (orig.) 891 HP/orig. 892 KN