137Cs in seawater and sediment along the Algerian coast

Noureddine, Abdelkader; Menacer, M.; Boudjenoun, R.; Benkrid, M.; Boulahdid, Mostefa; Kadi-Hanifi, M.; Lee, S.-H.; Povinec, P.

doi:10.1016/s1569-4860(05)08010-1

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…In the Algiers station, the values vary from 6.70 μBq/l to 21.70 μBq/l for 239+240 Pu and from 0.21 μBq/l to 0.77 μBq/l for 238 Pu. The results obtained within the framework of this work were compared with other works carried out in the same area in the north of the Mediterranean sea, where concentrations of 239+240 Pu vary between 14 and 26 μBq/l, in the west, the variation is between 8 and 33 μBq/l [3][4][5].…”

Section: Resultsmentioning

confidence: 84%

Plutonium Isotopes Concentration in Seawater along the Algerian Coast

Benkrid¹,

Noureddine

2007

Science and Technology of Nuclear Installations

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The International Atomic Energy Agency has organised in the framework of the regional project RAF/7/004, in collaboration with “Commissariat à l'Energie Atomique” (COMENA) and “Institut des Sciences de la Mer et de l'Aménagement du Littoral” (ISMAL), during August 2001, a scientific campaign along the Algerian coast, on board of the research vessel M.S. Benyahia of ISMAL is. Three stations, at the centre, east and west, were selected to collect five seawater samples for each water column reaching a maximum depth of 2000 m, using a stainless-steel water sampler of a volume of 250 litres. After recording the marine environment parameters (temperature and conductivity), seawater samples were conditioned and preconcentrated to precipitate plutonium isotopes usingMnCl2in the form ofMnO2in order to proceed to plutonium extraction by radiochemical separation and prepare the source by coprecipitation using neodymium fluoride (NdF3) by vacuum filtration and an evaluation of the activity by alpha spectrometry. Concentration results in units ofμBq/l of plutonium isotopes were obtained in the range of 6.7±1.00 to 25.5±3.70 forP239+240uand 0.21±0.04 to 0.77±0.15 forP238u. Distribution of Pu through the plot of its profile was studied and the concentration was estimated. The obtained results were compared toC137sand those found by other authors in the same Mediterranean area.

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Section: Resultsmentioning

confidence: 84%

Plutonium Isotopes Concentration in Seawater along the Algerian Coast

Benkrid¹,

Noureddine

2007

Science and Technology of Nuclear Installations

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“…In the background of the coastline, the landscape is dominated by the mountain chain of the Tell Atlas (Mont Chenoua, Blédien Atlas, Djurdura, Babors) with many forests. In 2008, the Algerian population was 34,080,030 inhabitants spread over the total area of the country, 2,381,741 km 2 [76][77][78]. 13,501,948 inhabitants (Table 3) are concentrated in the coastal departments (3941.94 km 2 ), or 39.61%.…”

Section: The Littoral Of Algeriamentioning

confidence: 99%

“…The climate is more advantageous for agriculture and living and the area creates more job opportunities than the highlands and the Sahara, which cover all together 84% of the country's surface. In 2008, the Algerian population was 34,080,030 inhabitants spread over the total area of the country, 2,381,741 km 2 [76][77][78]. 13,501,948 inhabitants (Table 3) are concentrated in the coastal departments (3941.94 km 2 ), or 39.61%.…”

Section: The Littoral Of Algeriamentioning

confidence: 99%

Degradation of Coastlines under the Pressure of Urbanization and Tourism: Evidence on the Change of Land Systems from Europe, Asia and Africa

Petrişor

Hamma

Nguyen

et al. 2020

Land

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The importance of studying coastal areas is justified by their resources, ecosystem services, and key role played in socio-economic development. Coastal landscapes are subject to increasing demands and pressures, requiring in-depth analyses for finding appropriate tools or policies for a sustainable landscape management. The present study addresses this issue globally, based on case studies from three continents: Romania (Europe), Algeria (Africa), and Vietnam (Asia), focusing on the anthropogenic pressure resulting from land use/land cover change or urban sprawl, taking into account the role of socioeconomic and political factors. The methodology consisted of producing maps and computing and analyzing indicators, correlating geospatial and socio-economic data in a synergistic manner to explore the changes of landscapes, and identify the specific driving forces. The findings show that the pressure of urbanization and tourism on coastal areas increased, while the drivers and impacts vary. Urbanization is due to derogatory planning in Romania and Algeria, and different national and local goals in Vietnam. The two drivers determine local exemptions from the national regulations, made for profit. In addition to the need for developing and enforcing policies for stopping the degradation and restoring the ecosystems, the findings underline the importance of international cooperation in policy development.

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“…Mussels have a remarkable ability to accumulate radionuclides from both water and planktonic food and therefore have been commonly employed to monitor radionuclides in aquatic environments [24][25][26][27][28][29][30]. However, it is well established that both the uptake and retention of radionuclides in mussels are significantly affected by the prevailing physical factors in the environment (e.g., salinity, temperature, food availability) and biological factors (e.g., seasonal growth and reproductive conditions) [31].…”

Section: Introductionmentioning

confidence: 99%

Artificial Mussels: A New Tool for Monitoring Radionuclides in Aquatic Environments

Yang

Chow

Zhang

et al. 2023

JMSE

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Existing methods for monitoring radionuclides in aquatic environments require frequent sampling of a large volume of water, followed by tedious concentration and analytical procedures, which often make it impractical. Mussels have also been commonly employed to monitor radionuclides but bioaccumulation is significantly affected by physical and biological factors. This study explored the feasibility of using the ‘Artificial Mussel’ (AM) as a new tool for monitoring radionuclides in marine environments. We showed that (a) the uptake and accumulation of 238U, 88Sr, and 133Cs by AMs are directly related to their concentration in water, and equilibrium could be reached within 7 to 8 weeks with high concentration factors. Our results suggest that AMs can serve as an effective and practical tool for monitoring radionuclides in the aquatic environment and overcoming the difficulties faced by existing methods in radionuclide monitoring.

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137Cs in seawater and sediment along the Algerian coast

Cited by 6 publications

References 7 publications

Plutonium Isotopes Concentration in Seawater along the Algerian Coast

Plutonium Isotopes Concentration in Seawater along the Algerian Coast

Degradation of Coastlines under the Pressure of Urbanization and Tourism: Evidence on the Change of Land Systems from Europe, Asia and Africa

Artificial Mussels: A New Tool for Monitoring Radionuclides in Aquatic Environments

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