Radioactive impacts on nekton species in the Northwest Pacific and humans more than one year after the Fukushima nuclear accident

Men, Wu; Deng, Fangfang; He, Jizhou; Ye, Wen; Wang, Fenfen; Li, Yiliang; Lin, Feng; Lin, Jing; Lin, L. K.; Zhang, Yusheng; Yu, Xi

doi:10.1016/j.ecoenv.2017.06.042

Cited by 20 publications

(12 citation statements)

References 40 publications

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“…In the plants, the radionuclides are mainly derived from soil, water and some absorption through the leaves. Similarly, the radionuclides in the terrestrial and/or marine animals should originate from their ingested food/water and some absorption through the skin or respiratory systems [42,43]. The radioactive contamination in organisms depends on three main factors: (1) the duration of contact with the contaminated media, e.g., food and water, soil/bottom mud, atmosphere, (2) the organisms concentration ability and (3) the organisms' maturity.…”

Section: Radiological Risk Assessmentmentioning

confidence: 99%

Assessment of Radioactivity Level in the Terrestrial and Marine Organisms in Yangjiang and Its Adjacent Areas (China)

Jiang

et al. 2021

IJERPH

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In order to assess the radioactive level in the terrestrial and marine organisms in Yangjiang and the adjacent areas, 90Sr, gross beta and gamma-emitting radionuclides (238U, 226Ra, 228Th, 226Ra, 40K, 137Cs, 51Cr, 55Fe, 54Mn, 58Co, 60Co and 65Zn) were analyzed from 2011 to 2012. The annual effective doses were estimated in the high natural radioactive background areas in Yangjiang (HBRAYJ). The specific activities of 238U, 228Th, 226Ra, 40K and 137Cs in all organisms were <0.05–5.20, 0.30–14.50, 0.11–3.58, 11.1–148.0 and <0.003–0.088 Bq/kg, whilst 51Cr, 55Fe, 54Mn, 58Co, 60Co, 65Zn and 110mAg were below the minimum detectable activity. 90Sr and gross beta specific activities were 20.0–143.0 and 0.021–0.316 Bq/kg. Results show that 228Th was significantly higher than 238U and 226Ra of natural U series in organisms due to the rich-Th soils in the HBRAYJ; 228Th, 226Ra, 40K, 137Cs and 90Sr were greatly lower than the limited concentrations in Chinese foods. The internal dose mainly contributes to natural 40K, 226Ra and 228Th. It is useful to provide some basic data and assess the radiological risk from the HBRAYJ and Yangjiang nuclear power plants in future.

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Section: Radiological Risk Assessmentmentioning

confidence: 99%

Assessment of Radioactivity Level in the Terrestrial and Marine Organisms in Yangjiang and Its Adjacent Areas (China)

Jiang

et al. 2021

IJERPH

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“…The rest was transferred into crucibles and ashed in a muffle furnace at 450 • C for 24-40 h. The ashes were ground and weighed at room temperature, stored in sealed boxes (∼100 g per sample) for 20 days until analysis. Canberra BE6530 and GR4021 HPGe spectrometers were used to determine the activities of 210 Pb, 134 Cs, 137 Cs, 110m Ag, 238 U, 226 Ra, and 40 K (Men et al, 2017). The di (2-ethylhexyl) phosphoric acid (HDEHP) extraction-β counting method and the Ortec MPC-9604 α/β counter were employed for 90 Sr analysis (Men et al, 2017), using ∼10 g of the ashes.…”

Section: Sample Processing and Analysismentioning

confidence: 99%

“…Canberra BE6530 and GR4021 HPGe spectrometers were used to determine the activities of 210 Pb, 134 Cs, 137 Cs, 110m Ag, 238 U, 226 Ra, and 40 K (Men et al, 2017). The di (2-ethylhexyl) phosphoric acid (HDEHP) extraction-β counting method and the Ortec MPC-9604 α/β counter were employed for 90 Sr analysis (Men et al, 2017), using ∼10 g of the ashes. Seawater and sediment samples were also analyzed according to the Technical Specification for Marine Radioactivity Monitoring (State Oceanic Administration of China, 2011).…”

Section: Sample Processing and Analysismentioning

confidence: 99%

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Activity Levels of 210Po, 210Pb and Other Radionuclides (134Cs, 137Cs, 90Sr, 110mAg, 238U, 226Ra and 40K) in Marine Organisms From Coastal Waters Adjacent to Fuqing and Ningde Nuclear Power Plants (China) and Radiation Dose Assessment

et al. 2021

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With the rapid development of nuclear power, the radiation impacts on edible marine organisms, and the potential radiation risks to humans have become of considerable concern to public health. In this study, the activities of 210Po and 210Pb as well as those of other radionuclides in fishes (Mugil cephalus, Konosirus punctatus, Largehead hairtail, and Larimichthys polyactis), crustaceans (Mantis shrimp, Parapenaeopsis hardwickii, and Portunus trituberculatus), bivalves (Crassostrea gigas, Sinonovacula conzcta), and macroalgae (Gracilaria, Porphyra) collected in the coastal area adjacent to the Fuqing and Ningde nuclear power plants (NPPs) were determined. The activity range of 210Po and 210Pb was 0.60–48.09 and 0.07–2.76 Bq/kg freshweight, respectively, with 210Po/210Pb activity ratios of 1.1–189.7. The ranking of 210Po activity levels in marine organisms was bivalve mollusks > crustaceans > fishes > macroalgae. The calculated bioconcentration factors of 210Po and 210Pb were 636–44,944 and 3–1,226 L/kg, respectively. These values provide a new supplement to the IAEA reference database. The radiation dose rates for these marine organisms ranged from 0.037 to 1.531 μSv/h, which was much lower than the ERICA ecosystem screening benchmark of 10 μGy/h. The calculated committed effective dose received by humans from ingestion of these marine organisms was 0.06–2.99 mSv. Overall, 210Po was the dominant radiation dose contributor in marine organisms and humans, whereas the dose contributions from the artificial nuclides 90Sr and 137Cs were negligible.

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“…110 m Ag emits gamma rays with a half-life of 249.7d, which is mainly produced by neutron activation of 109 Ag in Ag-In-Cd control rods or some seals with silver. Exposure to 110 m Ag may produce toxic effects, including liver and kidney damage, irritation of the eyes, skin, respiratory and changes in blood cells [1][2][3]. At different stages of nuclear power plant operation or shutdown and refueling, the chemical morphology and kinetic behavior of 110 m Ag in radioactive waste liquid are different [4,5].…”

Section: Introductionmentioning

confidence: 99%

The preparation of oxidative resin loaded with Fe3+ and their removal performance for 110 mAg in colloidal form

Pan

2020

J Radioanal Nucl Chem

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110 m Ag, comes from pressurized water reactor units, has become one of the major radionuclides affecting the surrounding environment. The chemical species of 110 m Ag are controlled by additives or impurities during operation process of nuclear power plant. Colloidal state (named Ag 0 ) and ionic state are main chemical forms. It is difficult to remove Ag 0 by commercial ion exchange resin because the colloidal particles have different sizes and low charge. The oxidative resin loaded with Fe 3+ were prepared and used for removal of colloidal Ag from aqueous solution. The influence factors such as resin dosage, adsorption time and initial concentration of Ag 0 were investigated through batch experiments. The adsorption efficiency of the oxidative resin towards Ag 0 in aqueous solution could reach 92.5% under pH 7. The adsorption process corresponds to the Langmuir adsorption model and pseudo-second-order kinetic equation. XPS analysis clearly shows the presence of binding energy peaks of Fe 2+ and Ag + , which indicates the adsorption mechanism towards Ag 0 is based on the combined actions of redox and ion exchange.

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Radioactive impacts on nekton species in the Northwest Pacific and humans more than one year after the Fukushima nuclear accident

Cited by 20 publications

References 40 publications

Assessment of Radioactivity Level in the Terrestrial and Marine Organisms in Yangjiang and Its Adjacent Areas (China)

Assessment of Radioactivity Level in the Terrestrial and Marine Organisms in Yangjiang and Its Adjacent Areas (China)

Activity Levels of 210Po, 210Pb and Other Radionuclides (134Cs, 137Cs, 90Sr, 110mAg, 238U, 226Ra and 40K) in Marine Organisms From Coastal Waters Adjacent to Fuqing and Ningde Nuclear Power Plants (China) and Radiation Dose Assessment

The preparation of oxidative resin loaded with Fe3+ and their removal performance for 110 mAg in colloidal form

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