Transfer Factors and Effective Dose Evaluation Due to Natural Radioactivity in Staple Food Grains from the Vicinity of Proposed Nuclear Power Plant

Abstract Using the groundwater migration and dispersion analytical model, combined with the topography and groundwater characteristics along the land drainage pipeline of an offshore nuclear power plant, the migration and dispersion of six radionuclides (3H, 14C, 137Cs, 134Cs, 60Co, 90Sr, etc.) in groundwater under the condition of pipeline breach accident are predicted. The scope of impact of radionuclides and the annual effective dose caused by drinking water pathways to the public are analyzed. By summarizing the radionuclide concentration and dose index requirements for groundwater at home and abroad, the corresponding environmental impact assessment is given. The prediction results show that the radionuclide concentration and public effective dose at the same distance first increase and then decrease with time, and the peak radionuclide concentration and maximum public effective dose gradually decrease with distance increasing, in other words, the impact of the breach accident on the distance above 30 m is limited.

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Estimated lifetime effective dose to hunters and their families in the three most contaminated counties in Sweden after the Chernobyl nuclear power plant accident in 1986 – A pilot study

Journal of Environmental Radioactivity ◽

10.1016/j.jenvrad.2017.06.017 ◽

2017 ◽

Vol 177 ◽

pp. 241-249 ◽

Cited By ~ 5

Author(s):

Martin Tondel ◽

Christopher Rääf ◽

Robert Wålinder ◽

Afrah Mamour ◽

Mats Isaksson

Keyword(s):

Pilot Study ◽

Power Plant ◽

Nuclear Power Plant ◽

Effective Dose ◽

Nuclear Power ◽

Chernobyl Nuclear Power Plant ◽

Nuclear Power Plant Accident

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Radiation Dose Evaluation of Marine Organisms for Coastal Nuclear Power Plant

Volume 7: Fuel Cycle, Decontamination and Decommissioning, Radiation Protection, Shielding, and Waste Management; Mitigation Strategies for Beyond Design Basis Events ◽

10.1115/icone25-67832 ◽

2017 ◽

Author(s):

Wang Shaowei

Keyword(s):

Power Plant ◽

Nuclear Power Plant ◽

Nuclear Power ◽

Dose Assessment ◽

Research Approach ◽

Factors Affecting ◽

Dose Evaluation ◽

Exposure Pathway ◽

Biological Dose ◽

Radionuclide Release

Fukushima nuclear accident has aroused concern about ionizing radiation damage to the marine environment. It is subjective to assess the accident’s effects on the marine ecological environment during different scholars, because of different understanding of nuclide release quantity, dose estimation models and parameters. To solve this problem, a gradually progressive research approach is designed based on a coastal nuclear power plant in study, which is “from influencing factors analyzing to biological dose assessment, and to uncertainty analysis”. First, the factors affecting the biological dose assessment will be analyzed, and then the concerns of the various factors and their impact on the results of the assessment will be discussed. Second, the biological dose will be assessed based on appropriate dose mode after selecting representative species and analyzing critical exposure pathway. Finally, the uncertainty of radionuclide release quantity, dilution factor, concentration factor, dose conversion factor will be analyzed. The study will provide reliable scientific bases to identify the factors impact biological dose assessment effectively, and improve the accuracy of the dose evaluation.

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