γ-Spectroscopy measurement of natural radioactivity and assessment of radiation hazard indices in soil samples from oil fields environment of Delta State, Nigeria

Measurement of natural radioactivity and assessment of radiation hazard indices in soil samples at Pengerang, Kota Tinggi, Johor

“…Table 6 summarizes the radiation hazard indices for soils obtained in some world region and this study. It is found that the six parameters for calculating the radiation hazard indices in this study are lower than some of reported values for countries like Nigeria, Jordan and China [17][18] [19]. The effective dose in present study is higher than the value reported by [13] [14].…”

Dependence of activity concentration of natural and artificial radionuclides on depth in soil samples from Antalya in Turkey

“…To determine dependence of activity concentration A (Bq/kg) of natural and artificial radionuclides on depth in soil samples from Antalya in Turkey, we used following well known equation [11]:…”

Transfer factors of 40K, 226Ra, 232Th from soil to different types of local vegetables, radiation hazard indices and their annual doses

“…The gamma index (I c ), which is expressed as the sum of fractions of the measured concentration of the natural radionuclides in soil is given below [23,24]:…”