236U and 239,240Pu ratios from soils around an Australian nuclear weapons test site

Tims, S.G.; Fifield, L.K.; Wallner, A.; Cesare, M. De

doi:10.1016/j.jenvrad.2015.06.020

Cited by 34 publications

(8 citation statements)

References 32 publications

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“…Numerous studies have confirmed that the radioactive substances contained in nuclear wastewater pose a great threat to the natural environment on which humans depend and to their own health (Clifford and Zhang 1994;Dufresne et al 2018). Normile (2021) stated that unlike other radioisotopes with significant risks, such as 131 I, 236 U, 240 P, 137 Cs (Tims et al 2016;Cléro et al 2021;Tsabaris et al 2021), the large amount of 3 H contained in nuclear wastewater from the FDNPP is more hazardous. Currently, approximately 1PBq 3 H is stored in storage tanks at FDNPP (de With et al 2021).…”

Section: Nuclear Wastewater Managementmentioning

confidence: 99%

Evolutionary analysis of Japan’s nuclear wastewater discharge events considering the impact of participants’ emotions

Xin

Liu

Wang

et al. 2022

Preprint

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The Japanese government’s decision on April 13, 2021 to discharge nuclear wastewater from the Fukushima Daiichi Nuclear Power Plant into the sea has aroused widespread concern around the world. People in Japan, especially fishermen, have expressed strong opposition to this decision. In this paper, we discuss an evolutionary game considering the impact of participants’ emotions to explore the evolutionarily stable strategies of both the Japanese government and Japanese fishermen. The results show the following: i) For the sake of interest, no matter what mood the fishermen are in, the Japanese government will choose to discharge nuclear wastewater. ii) The emotions of players not only affect their own strategy choices but also affect the strategy choices of other players. The emotional changes of Japanese fishermen not only affect the changes of their own strategies but also change the evolutionary trajectory of the Japanese government. iii) When both parties are rational, the impact of each key parameter on the evolution results and trajectories of both parties is closely related to the interests of both parties. When the fishermen are pessimistic, the changes in each parameter will not change their willingness to choose the opposition strategy but will affect the change in the Japanese government’s initial willingness to choose the discharge strategy. When the fishermen are optimistic, the cost of nuclear wastewater treatment and financial subsidies will slow down the evolution speed of the Japanese government to choose to discharge and Japanese fishermen to accept discharge policy. This paper also puts forward policy implications for the Japanese government and suggestions for Japanese fishermen to provide necessary support for the government to formulate pollution control policies and the people to protect their own rights and interests.

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Section: Nuclear Wastewater Managementmentioning

confidence: 99%

Evolutionary analysis of Japan’s nuclear wastewater discharge events considering the impact of participants’ emotions

Xin

Liu

Wang

et al. 2022

Preprint

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“…This was the case, for example, to assess the contributions of the Chernobyl fallout (Mitchell et al, 1990;Holm et al 1992;Pourcelot et al, 2003;Le Roux et al, 2010;Popov et al, 2010), or those of a nuclear industry (Charmasson et al, 1998;Duffa et al, 2001;Ueda et al, 2004;Gauthier-Lafaye et al, 2008). Mass spectrometry has been increasingly used in recent decades to supplement information; by having the advantage of direct access to accurate isotopic ratios, in particular with the atomic ratios of isotopes of heavy elements such as plutonium, to discern the local-regional fallout of a test site (Lindahl et al, 2011;Tims et al, 2016;Buessler et al, 2018;Huang et al, 2019). This applies especially to the ( 240 Pu/ 239 Pu) AR , whose values have been widely characterized for various types of installation, accident or use of nuclear material (Mitchell et al, 1997;Warneke et al, 2002;Eriksson et al, 2008;Lindhal et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Contribution of close-in fallout from the French atmospheric tests in inventories of 137Cs, 241Am and plutonium (238, 239, 240) in Gambier Islands (French Polynesia) – Signatures of stratospheric fallout in the Southern Hemisphere

Bouisset

Nohl

Cossonnet

et al. 2021

Journal of Environmental Radioactivity

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“…By contrast, the link between a specific isotope, considered via the isotopic ratio, and its origin often yields a more tangible association 13 , for example: a pre-detonation weapon safety test might cause 239 Pu to dominate; fallout from atmospheric detonations can comprise higher-mass isotopes through to 244 Pu (refs. 14 , 15 ), whereas a relatively low 240 Pu/ 239 Pu ratio might reflect the low proportions of 240 Pu desirable in some applications, such as that obtained by breeding. Material dispersed in fallout will often have a higher proportion of 244 Pu (ref.…”

Section: Introductionmentioning

confidence: 99%

Local and global trace plutonium contributions in fast breeder legacy soils

et al. 2021

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Trace-level plutonium in the environment often comprises local and global contributions, and is usually anthropogenic in origin. Here, we report estimates of local and global contributions to trace-level plutonium in soil from a former, fast-breeder reactor site. The measured 240Pu/239Pu ratio is anomalously low, as per the reduced 240Pu yield expected in plutonium bred with fast neutrons. Anomalies in plutonium concentration and isotopic ratio suggest forensic insight into specific activities on site, such as clean-up or structural change. Local and global 239Pu contributions on-site are estimated at (34 ± 1)% and (66 ± 3)%, respectively, with mass concentrations of (183 ± 6) fg g−1 and (362 ± 13) fg g−1. The latter is consistent with levels at undisturbed and distant sites, (384 ± 44) fg g−1, where no local contribution is expected. The 240Pu/239Pu ratio for site-derived material is estimated at 0.05 ± 0.04. Our study demonstrates the multi-faceted potential of trace plutonium assay to inform clean-up strategies of fast breeder legacies.

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236U and 239,240Pu ratios from soils around an Australian nuclear weapons test site

Cited by 34 publications

References 32 publications

Evolutionary analysis of Japan’s nuclear wastewater discharge events considering the impact of participants’ emotions

Evolutionary analysis of Japan’s nuclear wastewater discharge events considering the impact of participants’ emotions

Contribution of close-in fallout from the French atmospheric tests in inventories of 137Cs, 241Am and plutonium (238, 239, 240) in Gambier Islands (French Polynesia) – Signatures of stratospheric fallout in the Southern Hemisphere

Local and global trace plutonium contributions in fast breeder legacy soils

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