Resolving Chernobyl vs. global fallout contributions in soils from Poland using Plutonium atom ratios measured by inductively coupled plasma mass spectrometry

Ketterer, Michael E.; Hafer, Kevin M.; Mietelski, Jerzy W.

doi:10.1016/j.jenvrad.2003.09.001

Cited by 95 publications

(79 citation statements)

References 27 publications

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“…A significant decrease of this ratio would have supported the hypothesis that some of the plutonium arises from other sources, e.g. burnt nuclear fuel (Ketterer et al, 2004a), while a significant impact of the Chernobyl accident would have increased it up to 0.35 (Ketterer et al, 2004b).…”

Section: Plutonium In Milk Teethmentioning

confidence: 86%

Long-Term Effects of Exposure to Low-Levels of Radioactivity: a Retrospective Study of 239Pu and 90Sr from Nuclear Bomb Tests on the Swiss Population

Froidevaux¹,

Haldimann²,

Bochud³

2011

Nuclear Power - Operation, Safety and Environment

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Section: Plutonium In Milk Teethmentioning

confidence: 86%

Long-Term Effects of Exposure to Low-Levels of Radioactivity: a Retrospective Study of 239Pu and 90Sr from Nuclear Bomb Tests on the Swiss Population

Froidevaux¹,

Haldimann²,

Bochud³

2011

Nuclear Power - Operation, Safety and Environment

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“…The laboratory preparation for Pu analysis followed the method of Ketterer et al (2004aKetterer et al ( , 2004b having been scaled to accommodate larger sample masses. Sample aliquots ranging from 10 to 29 grams were dry-washed at 600°C for 16 hours, and leached with 50 mL of 16 M HNO 3 .…”

Section: Methodsmentioning

confidence: 99%

“…Detection limits were evaluated based upon the analysis of two blanks. A detection limit of 0.01 Bq/kg of 240+239 Pu is applicable for samples of nominal 25 gram mass (Ketterer et al, 2004a;Ketterer et al, 2004b;Ketterer and Szechenyi, 2008).…”

Section: Methodsmentioning

confidence: 99%

“…Plutonium is very useful as a chronological tool as the 239 Pu and 240 Pu atomic ratios ( 240 Pu/ 239 Pu) can be used to indicate the source. For instance, 240 Pu/ 239 Pu atomic ratios from global fallout (~0.18) differ from well-known 240 Pu/ 239 Pu atomic ratios from events such as Fukushima (0.30-0.33) (Zheng et al, 2012) and Chernobyl (~0.43) (Ketterer et al, 2004b). These distinct ratios may be useful for separating phases of sediment deposition because the nuclear accidents and testing dates are well known (Kelley et al, 1999).…”

Section: Introductionmentioning

confidence: 98%

“…Sediments where 240 Pu + 239 Pu ( 240+239 Pu) activity is first detected represents pre nuclear bomb deposited sediments and hence pre early 1950s deposition. Because plutonium is relatively immobile under both freshwater and saltwater conditions (Ketterer et al, 2004b;Zheng and Yamada, 2004) it is an ideal chronology tool in lake environments.…”

Section: Introductionmentioning

confidence: 99%

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<sup>240+239</sup>Pu depositional signatures as a viable geochronological tool in the Amazon Basin

et al. 2017

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Anthropogenic radionuclide signatures associated with nuclear testing are increasingly utilized in environmental science to explore recent sedimentation. In this study, we assess the suitability of Pu radioisotope analysis in floodplain lake environments in the Amazon Basin to form geochronologies during the 20 th century. The 240 Pu + 239 Pu ( 240+239 Pu) signatures in six sediment cores indicate sediment accumulation rates in the floodplain lakes of the major rivers; Amazon (2.3 mm year -1 ), Tapajos (10.2 and 2.4 mm year -1 ) and Madeira (3.4, 4.2 and 6.2 mm year -1 ). The results from this study show that 240+239 Pu fallout activities, and the well documented ( 240 Pu/ 239 Pu) atomic ratios of the above ground nuclear tests which began in the 1950's, are sufficient and well preserved in Amazon floodplain lake sediments to infer chronologies. Lead-210 dating analyses in the same sediment cores produced comparable sediment accumulation rates at three of the six sites. The differences between dating methods may be attributed to the different time scale these dating methods represent and/or in the solubility between Pb and Pu along the sediment column. The geochronologies derived from the 240+239 Pu and 210 Pb dating methods outlined in this work are of interest to identify the effects of changing sediment accumulation rates during the previous century as a result of development, including deforestation, along the Amazon Basin which increased towards the middle of the 20 th century. This study shows that Pu dating provides a viable alternative geochronology tool for recent sediment accumulation (previous ~60 years) along the Amazon Basin.

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Inductively Coupled Plasma Spectrometry and its Applications

Hill¹

2006

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Resolving Chernobyl vs. global fallout contributions in soils from Poland using Plutonium atom ratios measured by inductively coupled plasma mass spectrometry

Cited by 95 publications

References 27 publications

Long-Term Effects of Exposure to Low-Levels of Radioactivity: a Retrospective Study of 239Pu and 90Sr from Nuclear Bomb Tests on the Swiss Population

Long-Term Effects of Exposure to Low-Levels of Radioactivity: a Retrospective Study of 239Pu and 90Sr from Nuclear Bomb Tests on the Swiss Population

<sup>240+239</sup>Pu depositional signatures as a viable geochronological tool in the Amazon Basin

Inductively Coupled Plasma Spectrometry and its Applications

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