Distribution of anthropogenic radionuclides in the water column of the south-western Mediterranean Sea

Lee, S.-H.; Mantoura, F.; Povinec, P.; Sanchez-Cabeza, Joan-Albert; Pontis, J.-L.; Mahjoub, A.; Noureddine, Abdelkader; Boulahdid, Mostefa; Chouba, Lassâad; Samaali, M.; Reguigui, N.

doi:10.1016/s1569-4860(05)08008-3

Cited by 12 publications

(7 citation statements)

References 16 publications

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“…These values lay within the range of inventories reported in previous studies, such as an inventory of 284 Bq.m -2 that was found in the Alboran Basin from a sediment core collected at 800 m water depth (Laissaoui et al, 2008). The high 137 Cs activity concentrations observed in the Sicily channel could be attributed to the influence of the Levantine Intermediate Waters (LIW) that carry higher 137 Cs concentrations due to the Chernobyl accident (Lee et al, 2006).…”

supporting

confidence: 85%

Evaluating the historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels)

et al. 2019

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The sediment accumulation rate in the Sardinia and Sicily channels in the central part of the Mediterranean Sea was studied by using short-lived radionuclides (210Pb and 137Cs) in two deep sediment cores. Different sedimentation regimes were identified indicating substantial differences in accumulation rates and historical patterns. The 210Pb-derived mean accumulation rate found in the Strait of Sardinia was 0.05 g.cm-2.y-1, lower than that in Sicily Channel (0.1 g.cm-2.y-1) suggesting an inverse correlation with water depth. Excess 210Pb inventories were 24 ± 1 and 6.0 ± 0.4 kBq.m-2, while the fluxes to the sediment were 745 ± 31 and 188 ± 11 Bq.m-2.y-1 in Sicily and Sardinia channels, respectively. 137Cs failed to use for the validation of the established chronologies, while its inventories found 450 Bq.m-2 and 355 Bq.m-2 in the Sicily and Sardinia channel, respectively.

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supporting

confidence: 85%

Evaluating the historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels)

et al. 2019

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“…The 137 Cs water profiles presented in Fig. 3 are in a reasonable agreement with data reported by other authors in previous studies of the Mediterranean Sea (Molero et al, 1995;Papucci and Delfanti, 1999;Lee et al, 2006). Surface 137 Cs concentrations have been exponentially decreasing with time, with interruption in 1986 when due to the Chernobyl accident the 137 Cs distribution, especially in the northern and eastern basins, was modified Delfanti et al, 2003;Florou et al, 2003).…”

Section: Processes In the Water Columnsupporting

confidence: 88%

“…The estimated 137 Cs inventories are 2.7 AE 0.5 kBq m À2 for Station 2 and 3.8 AE 0.7 kBq m À2 for Station 3. Comparable inventories, 2.2-6.8 kBq m À2 and 1.3-2.6 kBq m À2 , were reported by Delfanti et al (1995) and Lee et al (2006). As the inventories strongly depend on the water depth, they should be compared for similar depths.…”

Section: Cs and 239240 Pu Inventories In The Water Columnmentioning

confidence: 74%

Radionuclide tracing of water masses and processes in the water column and sediment in the Algerian Basin

Noureddine

Benkrid

Maoui

et al. 2008

Journal of Environmental Radioactivity

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“…The average values of 137 Cs concentration in Algiers and Ténes stations are 2.28 ± 0.15 mBq/L and 1.89 ± 0.11 mBq/L, respectively. These values were compared to other works (values ranging from 2.04 mBq/L to 4.4 mBq/L) in the same area, and found to be in the same range [2][3][4][5]7].…”

Section: Resultsmentioning

confidence: 73%

“…Regarding the results of the sampling campaign of August 2001 of the present work, 137 Cs, 90 Sr, Pu isotopes, and 210 Pb concentrations in Bq/kg were determined in several sediment cores and seawater columns, and their profiles versus depth (m) were also plotted. The average concentrations of 137 Cs and 90 Sr, for example, in surface seawater for the year 2000 in the same area, are about 2.5 mBq/L [2][3][4] and about 1.5 mBq/L [5], respectively.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Natural Radioactivity,¹³⁷Cs,⁹⁰Sr, and Plutonium Isotopes in a Water Column and Sediment Core along the Algerian Coast

Noureddine

Benkrid

Maoui

et al. 2007

Science and Technology of Nuclear Installations

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Concentrations of natural (40K,210Pb, uranium, and thorium series) and artificial radioelements (137Cs,90Sr,239+240Pu) were determined in seawater and sediment samples collected from stations along the Algerian coast. Seawater was collected from the surface to a maximum depth of 2000 m; the sediment cores were sampled from a depth of around 1500 m. This work was carried out in August 2001, in the framework of the Regional African project /7/004 (RAF), by the accomplishment of an oceanographic campaign organized by the International Atomic Energy Agency (IAEA) in collaboration with Commissariat à l'Energie Atomique (COMENA) and L'Institut des Sciences de la Mer et de L'Amenagement du Littoral (ISMAL), on board of the research vessel of M.S. Benyahia of ISMAL. In addition to the record of the conductivity (mS) and temperature (°C) data at each station, seawater samples were treated and preconcentrated on board, those of sediment cores were divided into different layers in order to undergo analyses in the laboratory of radiological impact studies of Algiers. Concentration results were obtained for137Cs and90Sr in mBq/L and239+240Pu inμBq/L in seawater, and also for natural and artificial radionuclides in Bq/kg dry weight in the layers of the sediment cores. The different profiles of137Cs,239+240Pu,90Sr, and210Pb concentrations against depth were presented to show artificial radioactivity distribution in the water column and sediment core. Concentrations of137Cs in the sediment core were also used to identify the137Cs peak in the area of interest.

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Distribution of anthropogenic radionuclides in the water column of the south-western Mediterranean Sea

Cited by 12 publications

References 16 publications

Evaluating the historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels)

Evaluating the historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels)

Radionuclide tracing of water masses and processes in the water column and sediment in the Algerian Basin

Distribution of Natural Radioactivity,¹³⁷Cs,⁹⁰Sr, and Plutonium Isotopes in a Water Column and Sediment Core along the Algerian Coast

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Distribution of anthropogenic radionuclides in the water column of the south-western Mediterranean Sea

Cited by 12 publications

References 16 publications

Evaluating the historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels)

Evaluating the historical sedimentation patterns in two different Mediterranean deep environments (Sardinia and Sicily Channels)

Radionuclide tracing of water masses and processes in the water column and sediment in the Algerian Basin

Distribution of Natural Radioactivity,137Cs,90Sr, and Plutonium Isotopes in a Water Column and Sediment Core along the Algerian Coast

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Distribution of Natural Radioactivity,¹³⁷Cs,⁹⁰Sr, and Plutonium Isotopes in a Water Column and Sediment Core along the Algerian Coast