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In this work, the activity concentrations (radioactivity) and distributions of natural radionuclides in peat moss samples were investigated. The measurements were performed using HP-Ge detector and XRD technique. The samples represent six types of soils. The concentrations of radionuclides of 238 U, 226 Ra, 232 Th and 40 K are ranged from 17.14 to 130.83, 13.19 to 26.09, 5.33 to 25.2 and 143.26 to 600.31 Bq•kg-1 (dry weight), respectively, for the different samples. This work also highlights that no correlation has been observed between radionuclides present in the samples, which in turn reflects the random method

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In this work, the distributions of radionuclides activity as well as radon concentrations in selected rock samples collected from Sinai-Egypt were investigated. Radionuclides distribution, 238U, 232Th and 40K, in rock samples, which were gathered from Um-Bogma region, was calculated by HPGe detector. Also radon concentration has been measured by using (SSNTD) CR-39. Using empirical equations, the concentration of 222Rn emitted (226Ra decaying) was computed and compared to the tracks recorded by CR-39. From our data, the average specific activity in Bq kg−1 for 238U, 235U, 234U, 226Ra 232Th and 40K were obtained. Measured radon concentrations as generated alpha tracks owing to 222Rnm (measured radon) were compared to occurring 222Rnp (predicted radon) as 226Ra alpha decay to determine measured radon loss in natural samples taken from Sinai, Egypt. The geological structure appears to be the main factor affect on detected radon concentration and results shows that radon emanation was influenced by the rock type.

Number of Shisha smokers has been increased drastically in the last ten years among Egyptians, and smoking shisha has become routine life style not only in popular placed but also in coffee shops and adults clubs. The World Health Organisation's (WHO) provided evidence of the potential health effects when the smokers exposed to shisha similar to a cigarette that contains nicotine, tar, carbon monoxide, heavy metals and cancer-causing chemicals. Selected samples has been investigated in two profiles wet samples (profile A) and dry sample (profile B). The average value of activity concentration for 238