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Agricultural direct application of phosphate rock (PR) to treat the phosphorus deficiency and soil acidity is a well known practice.Toxic heavy metals as well as naturally occurring radioactive materials (NORM) in PR from different geographically areas are varied considerably.It could impose notable radioecological impacts.Composite samples of run of mine (ROM) ore and concentrate (PRC) were collected from Abu-Tartor phosphate mine,west desert,Egypt.Activity and elemental concentrations of uranium isotopes (238U and 235U),radium isotopes (226Ra and 228Ra),2IOPb,2IOPo,40K,U,Th and K were measured using y-ray spectrometer,α-particle spectrometer and inductively coupled plasma-mass spectrometer (ICP-MS).Major elements (e.g.,SiO2,A12O3,Fe2O3,Mno and P2O5) were measured using X-ray fluorescence (XRF).Transfer and fractionation of TENORM from ROM to PRC during beneficiation (flotation-separation) processes was evaluated using mass balance calculation.Furthermore,radiological dose assessment,both external and internal via dust inhalation,and hazardous indices (e.g.,geo-accumulation,pollution load and enrichment factors) were evaluated and discussed.