226Ra/238U and 228Th/228Ra disequilibrium as weathering indices in beach sand sediments associated with granitoids from Cyclades. Greece

Papadopoulos, Argyrios

doi:10.1016/j.apgeochem.2018.12.002

Cited by 4 publications

(1 citation statement)

References 54 publications

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“…Conversely, the 40 K mean values were higher than all other locations in the world except Addurrah beach [49], Serbia [82], Cyprus [4], and Bangladesh [32]. It is worth noting that U and Th series disequilibria were well documented [31,83]. The presented values of 226 Ra and 228 Ra (Table 2) do not assume that there are 238 U/ 226 Ra and 232 Th/ 228 Ra equilibria in those samples; they are merely displayed for simple comparisons.…”

Section: Activity Concentrationsmentioning

confidence: 86%

Radiation Hazard from Natural Radioactivity in the Marine Sediment of Jeddah Coast, Red Sea, Saudi Arabia

Al-Mur

Gad

2022

JMSE

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Marine sediment samples were collected along the Jeddah coast, Red Sea, Saudi Arabia, in order to assess radiation hazards and the exposure to human and marine living organisms. Using collaborative techniques, grain size, mineralogical characteristics, and natural radioactivity were investigated. To examine the influence of sediment characteristics over the distribution of the measured radionuclides, resulting data were statistically processed by using multivariate analyses. 238U, 232Th, and 40K levels were specified to be 19.50, 9.38, and 403.31 Bq kg−1, respectively. Radionuclides distributions were affected by sediment mud content, organic matter, and heavy minerals index. The calculated radiation risk parameters are within the safe range and lower than the global average. Natural radiation from these marine sediments is normal and poses no significant radiological risk to the public or marine living organisms. The natural radioactivity of the marine sediment in this Jeddah coastline will have to be monitored on a regular basis to avoid overexposure to the residents.

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