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- W3047387622 endingPage "111481" @default.
- W3047387622 startingPage "111481" @default.
- W3047387622 abstract "The region around the Gulf is moving toward a nuclear energy option with the first nuclear power plant now operational in Bushehr, Iran. Others are soon to be commissioned in Abu Dhabi and in Saudi Arabia. For this reason, radiological safety is becoming a prime concern in the region. This review compiles published data on radionuclide concentrations in seawater, sediment, and biota that have been analyzed in the Gulf countries, along with spatial distribution patterns to enable a synoptic view of the available datasets. The seawater concentrations of 3H, 210Po, 210Pb, 137Cs, and 90Sr varied between 130 and 146, 0.48–0.68, 0.75–0.89, 1.25–1.38, 0.57–0.78 mBq L−1, respectively. The 226Ra concentration in seawater varied between 0.26 and 3.82 Bq L−1. Extremely high 40K concentrations between 132 and 149 Bq L−1 have been reported from the Iranian coast compared to 8.9–9.3 Bq L−1 from the western side of the Gulf. Concentrations of 40K, total 210Pb, 137Cs, 90Sr, 226Ra, 228Ra, 238U, 235U, 234U, 239+240Pu, and 238Pu were determined in sediment and ranged between 353 and 445, 23.6–44.3, 1.0–3.1, 4.8–5.29, 17.3–20.5, 15–16.4, 28.7–31.4, 1.26–1.30, 29.7–30.0, 0.045–0.21 and 0.028–0.03 Bq kg−1 dry weight, respectively. Significantly higher 137Cs values have been reported from the Iranian coast compared to the western coast of the Gulf. Whole fish concentrations of 40K, 226Ra, 224Ra, 228Ra, 137Cs, 210Po and 90Sr ranged between 230 and 447, 0.7–7.3, <0.5–6.6, <0.5–15.80, <0.17, 0.88–4.26 and 1.86–5.34 Bq kg−1 dry weight, respectively. 210Po was found to be highly concentrated in several marine organisms with the highest 210Po concentration found in the clam Marcia marmorata (193.5–215.6 Bq kg−1 dry weight). The review highlights the overall paucity of data and inconsistencies in the measurement of radionuclides throughout the Gulf region. Further, since the region is moving toward nuclear energy to meet its increasing energy demand, and coupled with the environmental effects from offshore oil exploration and the heavy impact of climate change, there is a pressing need to undertake a comprehensive marine radioactivity monitoring and assessment effort by conducting a joint cruise in the Gulf with participation of all the adjoining countries. Several recommendations on sampling marine matrixes in the Gulf are given with the aim of improving comparability of radionuclide data from the various studies undertaken in the Gulf region." @default.
- W3047387622 created "2020-08-10" @default.
- W3047387622 creator A5003004328 @default.
- W3047387622 creator A5020811543 @default.
- W3047387622 creator A5021065952 @default.
- W3047387622 creator A5041829770 @default.
- W3047387622 creator A5059062252 @default.
- W3047387622 creator A5088724972 @default.
- W3047387622 date "2020-10-01" @default.
- W3047387622 modified "2023-10-02" @default.
- W3047387622 title "A review of radioactivity in the Gulf region" @default.
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