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Dolphin-shaped island: Exploring the natural resources and radiological hazards of Wadi El Gemal Island. | LitMetric

AI Article Synopsis

  • The study aims to evaluate Wadi El Gemal Island's natural resources and radiological hazards by investigating its topography, mineralogy, and radioactive elements in the area.
  • The island, known for its unique dolphin-like shape and rich environment, is part of a protected area and showcases diverse geological and ecological features.
  • Analysis of radionuclide concentrations revealed they are within safe limits, indicating minimal radiological risk, with hazard indices showing no significant health concerns associated with the sediments.

Article Abstract

The objective of this study is to assess the natural resources and radiological risks of Wadi El Gemal Island by examining its topography, mineralogy, geochemistry, and radioactive distributions. This island, which is situated at the outlet of Wadi El Gemal in Egypt's southeastern Desert, has a unique shape resembling a dolphin based on Landsat imagery. It's a part of the Wadi El Gemal-Hamata Protectorate and is notable for its diverse environmental, geological, economic, and archeological features, including recent reefs, sandy deposits, Quaternary carbonate sediments, and mangroves. The main natural resources on the island are fauna, mangrove forests, and flora. Samples collected from the island were analyzed using a NaI detector to measure the concentrations of radionuclides such as U, Th, Ra, and K, which were found to be within acceptable levels according to UNSCAR guidelines. The radionuclide U, Th, Ra, and K activity concentrations of the collected samples were 32.55 ± 9, 12.63 ± 4, 12.49 ± 4, and 325 ± 34 Bq/kg, respectively. Regarding radiological hazard indices, the values of absorbed gamma dose rate (36.06 ± 5.42 nGy/h), radium equivalent activity (73.88 ± 14.4 Bq/kg), annual effective dose indoor (0.18 ± 0.03 mSv/y) and outdoor (0.04 ± 0.01 mSv/y), internal (0.29 ± 0.05) and external (0.2 ± 0.03) indices, and excess lifetime cancer index (0.15 ± 0.05 × 10).This is suggest that there is no significant risk associated with these sediments.

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Source
http://dx.doi.org/10.1016/j.marpolbul.2023.115367DOI Listing

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