Environmental radioactivity survey in site studies

Systematic monitoring of Rn in soil, background gamma levels and meteorological measurements, have been conducted at the site of a Nuclear Research Center. The data cover a time period of several years. The radon in soil gas fluctuations are influenced by meteorological seasonal changes and by geophysical local parameters and they range between 1000 Bq/m³ and 18000 Bq/m³. The observed gamma levels show geographic stability; some seasonal fluctuations were observed. Data analysis indicates that no significant changes occurred at the site over the measuring time period and radiation levels and meteorological changes are moderate inducing no ecological impact on the surroundings.