Marine sediments as a radioactive pollution repository in the world

Navarrete, J. M.; Espinosa, G.; Golzarri, J.I.; Müller, Graciela; Zúñiga, Miguel Angel; Camacho, M.E.

doi:10.1007/s10967-013-2707-4

Cited by 10 publications

(3 citation statements)

References 1 publication

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“…Marine underwater facilities are one of the main sources of pollution. Nuclear power plants and nuclear-pow-ered vessels will cause radioactive pollution [19] . Oil exploitation, transportation and ship navigation will produce oil pollution.…”

Section: Current Situation Of Marine Pollutionmentioning

confidence: 99%

Effects of antifouling technology application on Marine ecological environment

Liu¹,

Wang²,

Song

et al. 2022

SUSTAIN MAR STRUCT

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Resolving the contradiction between Marine economic development and Marine ecological environment protection has become an unavoidable and sharp problem. The uncontrolled use of Marine antifouling technology will bring uncontrollable and even irreversible damage to the Marine biosphere, which will lead to ecological disaster and threaten the survival of human beings. Therefore, it is an urgent task to find antifouling technology with lower environmental toxicity under the premise of considering economy. More attention should be paid to the long-term impact of mature and new technologies on the Marine ecological environment. This paper introduces the development status of antifouling technology, its influence on Marine ecological environment and puts forward the design strategy of comprehensive biological fouling prevention and control technology.

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Section: Current Situation Of Marine Pollutionmentioning

confidence: 99%

Effects of antifouling technology application on Marine ecological environment

Liu¹,

Wang²,

Song

et al. 2022

SUSTAIN MAR STRUCT

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“…HPGe gamma spectrometry is a nondestructive analytical method and used here for the analysis of 40 K in nopal. The secular equilibrium between daughter nuclides and the naturally occurring parents implies that the gamma ray emission rate for the decay to 40 Ar is proportional to the amount of 40 K in nopal [9]. The aim of this study is to assess the potassium concentrations in Mexican nopal.…”

Section: David Publishingmentioning

confidence: 99%

Study of the Opuntia ficus indica and Its Radioactive Potassium Content using the Gamma Spectrometry

Espinosa¹,

Golzarri²,

Padilla-Soriano³

2016

JESE-B

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Mexico is one of the largest producers of nopal (Opuntia ficus indica). This "vegetable" is consumed on a daily basis by the Mexican population, being a source of food nutrients. Among its benefits, it is considered the content of potassium, which is essential for human life and health. In this study, it analyzes the content of potassium of the Mexican cactus (Opuntia ficus indica) grown in 5 different regions in the Mexican Basin, where 67% of the nopal is produced for human consumption. The used methodology is gamma spectrometry with Hyperpure Germanium detector (HPGe) and Multichannel Analyzer (MCA) with Maestro ® software. The results show interesting aspects on the concentration of potassium in the nopal. This concentration will primarily depend on: (a) the geological characteristics of the location where the nopal was grows; (b) that potassium concentrations may vary substantially from a region to another, with the same species of nopal as a reference and (c) that this concentration may also vary from one growing season to another.

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“…It is also interesting to compare the obtained RCF values in Cuba with those obtained in 2011 by Navarrete et al in marine sediments sampling stations in the Gulf of Mexico. It can be noted that in Mexico, the highest value of RCF was 1.21%; while in Cuba, we found values up to 11% on the North coast [11][12][13]. Figures 12 and 13 show the spectra obtained with the Hyperpure Germanium detector (HPGe).…”

mentioning

confidence: 97%

Marine Sediments as Fundamental Repository of Radioactive Contaminants in Aquatic Ecosystems

Batlle¹,

Tejero²

2018

Sedimentation Engineering

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In the last three decades, the studies of artificial radionuclides concentration have attracted attention, bringing in the most significant long-term threat to the biosphere. In aquatic ecosystems, the main indicators of pollution are contaminated sediments, which are the primary repository of radionuclides and chemical elements in the marine environment. Radioactive contamination factor (RCF) has been proposed as a suitable unit to measure the magnitude of radioactive contamination at global scale, caused mainly by more than 2000 nuclear explosion tests performed during the 1945-1965 period. It is obtained as percentage of contaminant radioactivity ( 137 Cs) compared to natural radioactivity ( 40 K), both expressed in Bq/g of marine sediments conditioned in Marinelli containers and detected in both NaI(Tl) and HPGe detectors. So, in this paper, samples of marine sediments were taken up along the occidental Cuban coasts and analyzed by gamma spectrometry for the determination of gamma-emitting radioisotopes with energies between 60 and 2000 keV. The results proved that the proposed method is simple and suitable to evaluate radioactive contamination. Also, the RCF values provide an appropriate indicator to predict which will be the future pollution levels and if the rate will go down when only have passed 2,4 half-lives of 137 Cs.

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Marine sediments as a radioactive pollution repository in the world

Cited by 10 publications

References 1 publication

Effects of antifouling technology application on Marine ecological environment

Effects of antifouling technology application on Marine ecological environment

Study of the Opuntia ficus indica and Its Radioactive Potassium Content using the Gamma Spectrometry

Marine Sediments as Fundamental Repository of Radioactive Contaminants in Aquatic Ecosystems

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