No Fukushima Dai-ichi derived plutonium signal in marine sediments collected 1.5-57 km from the reactors

被引：5

作者：

Wendel, C. C. S. ^{[1
,3
]}

Lind, O. C. ^{[1
]}

Fifield, L. K. ^{[2
]}

Tims, S. G. ^{[2
]}

Salbu, B. ^{[1
]}

Oughton, D. H. ^{[1
]}

机构：

[1] Norwegian Univ Life Sci NMBU, Dept Environm Sci, Ctr Environm Radioact CoE, N-1433 As, Norway

[2] Australian Natl Univ, Dept Nucl Phys, Canberra, ACT 2601, Australia

[3] Inst Energy Technol, Kjeller, Norway

来源：

APPLIED RADIATION AND ISOTOPES | 2017年 / 129卷

关键词：

Nuclear accident; Source identification; Accelerator mass spectrometry; Fukushima; Pacific Proving Grounds; POWER-PLANT ACCIDENT; PU ISOTOPES; ENVIRONMENTAL-SAMPLES; TEMPORAL DISTRIBUTION; MASS-SPECTROMETRY; NUCLEAR; SEAWATER; FALLOUT;

D O I：

10.1016/j.apradiso.2017.08.015

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Based on AMS analysis, it is shown that no Pu signals from the Fukushima accident could be discerned in marine sediments collected 1.5-57 km away from the Fukushima Da-ichi power plant (FDNPP), which were clearly influenced by accident-derived radiocesium. The Pu-240/Pu-239 atom ratios (0.21-0.28) were significantly higher than terrestrial global fallout (0.182 +/- 0.005), but still in agreement with pre-FDNPP accident baseline data for Pu in near coastal seawaters influenced by global fallout and long-range transport of Pu from the Pacific Proving Grounds.

引用

页码：180 / 184

页数：5

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