Public Company "Nuclear Facilities of Serbia" is the only nuclear operator in Serbia. Under the radiation safety and radiation protection measures of people and environment, Public Company conducts the environmental radiation monitoring around nuclear facilities. Monitoring also includes relevant meteorological measurements at the micro-location. This paper shows the correlation between the change of ambient gamma dose rate equivalent in the air and meteorological parameters: precipitation and the relative humidity in air. All the measurements were taken at the site of a meteorological tower on 114 meters above sea level, in the vicinity of nuclear facilities. Monthly values of relative humidity of the air and intense rainfall were obtained during 2017. The analysis of this relation clearly shows the impact of the intense rain and the relative humidity of the air on the ambient gamma dose rate equivalent. Calculated Pearson's correlation coefficient shows the degree of the above-mentioned dependence.

Public company "Nuclear Facilities of Serbia" is the only operator of nuclear facilities and holder of licenses to perform nuclear activities in the country. By the current legislation, environmental radiation monitoring in the vicinity of nuclear facilities is performed to assess the level and control the external exposure of the population and environment to ionizing radiation due to the operation of nuclear facilities. This paper presents an overview of the representative environmental radiation monitoring results regarding radioactive contamination level and ambient gamma dose rate equivalent in air and precipitation for the year 2021. The obtained results show that there is no adverse influence on the population and environment and the radiation risk for individuals in the population is negligible.