Provenance of uranium in a sediment core from a natural reservoir, South China: Application of Pb stable isotope analysis

Liu, Juan; Luo, Xuwen; Wang, Jin; Xiao, Tangfu; Yin, Meiling; Belshaw, N.S.; Lippold, Holger; Kong, Lingjun; Xiao, Enzong; Bao, Zhian; Li, Nuo; Chen, Yongheng; Linghu, Wensheng

doi:10.1016/j.chemosphere.2017.11.131

Cited by 41 publications

(14 citation statements)

References 49 publications

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“…Similar values have already been observed in the vicinity of U-sites highly contaminated by mining and milling activities. 4,25,26,31,57,58 Importantly, no correlation was observed here between the radiogenic Pb and the U content distributions. For instance, the U-rich C2-5 cm and C4-25 cm levels contain ∼50% of radiogenic Pb, while the same percentage was observed in other layers of the cores with lower U-contents.…”

Section: Resultsmentioning

confidence: 66%

“…Knowing these three isotope ratios, it is possible to calculate the f factor that was often interpreted as the proportion of radiogenic Pb to the total Pb of the sample. 22,23,25,27,28,31 However, f expresses the atomic proportion of the radiogenic 207 Pb in the 207 Pb of the sample (see also Supporting Information section SI-6). Because of the significant difference in the Pb isotopic composition between the U-ore and the geochemical background, this term leads to an important underestimation of the proportion of the radiogenic Pb in the sample and consequently to an underestimation of the environmental impact of U-mining activities.…”

Section: Methodsmentioning

confidence: 99%

“…Later, Pb isotopes were used for U-mining environmental impact assessment studies. − Mining and milling activities have led to the dissemination of radioactive-enriched material containing radiogenic Pb in the environment. The Pb isotope signature of the U-ore can be detected over long distances from the U-mine even after significant mixing with the natural Pb due to the high isotopic contrast between the sources (natural versus U-ore) and to the high radiogenic Pb content of the transported material.…”

Section: Introductionmentioning

confidence: 99%

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New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

Gourgiotis

Mangeret

Manhès

et al. 2019

Environ. Sci. Technol.

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Section: Resultsmentioning

confidence: 66%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

Gourgiotis

Mangeret

Manhès

et al. 2019

Environ. Sci. Technol.

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“…No significant Pb isotopic fractionation occurs during natural and anthropogenic processes, implying that the final Pb isotopic composition in the environment reflects only the original source of Pb or a mixture of multiple sources, thus allowing us to evaluate the contributions from the different Pb sources [16,[19][20][21]. Studies are increasingly using Pb isotope fingerprinting to trace the anthropogenic Pb sources in sediments, soils, coal fly ash, aerosols, and other environment archives [11,12,[22][23][24][25]. Recently, Pb isotopes have been employed to trace sources of gold deposits [26].…”

Section: Introductionmentioning

confidence: 99%

Potentially Toxic Element Contaminations and Lead Isotopic Fingerprinting in Soils and Sediments from a Historical Gold Mining Site

Tang

Zhang

et al. 2021

IJERPH

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Lead (Pb) isotopes have been widely used to identify and quantify Pb contamination in the environment. Here, the Pb isotopes, as well as the current contamination levels of Cu, Pb, Zn, Cr, Ni, Cd, As, and Hg, were investigated in soil and sediment from the historical gold mining area upstream of Miyun Reservoir, Beijing, China. The sediment had higher 206Pb/207Pb ratios (1.137 ± 0.0111) than unpolluted soil did (1.167 ± 0.0029), while the soil samples inside the mining area were much more variable (1.121 ± 0.0175). The mean concentrations (soil/sediment in mg·kg−1) of Pb (2470/42.5), Zn (181/113), Cu (199/36.7), Cr (117/68.8), Ni (40.4/28.9), Cd (0.791/0.336), As (8.52/5.10), and Hg (0.168/0.000343) characterized the soil/sediment of the studied area with mean Igeo values of the potentially toxic element (PTE) ranging from −4.71 to 9.59 for soil and from −3.39 to 2.43 for sediment. Meanwhile, principal component analysis (PCA) and hierarchical cluster analysis (HCA) coupled with Pearson’s correlation coefficient among PTEs indicated that the major source of the Cu, Zn, Pb, and Cd contamination was likely the mining activities. Evidence from Pb isotopic fingerprinting and a binary mixing model further confirmed that Pb contamination in soil and sediment came from mixed sources that are dominated by mining activity. These results highlight the persistence of PTE contamination in the historical mining site and the usefulness of Pb isotopes combined with multivariate statistical analysis to quantify contamination from mining activities.

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“…U was also largely transported across the deep subsurface of these anthropogenic areas. Liu et al reported that U partitioning in the depth soil profile in nearby former U mine tailings was possibly controlled by a complicated interplay of leaching and precipitation cycles of U-bearing minerals …”

Section: Introductionmentioning

confidence: 99%

Rapid Screening for Uranium in Soils Using Field-Portable X-ray Fluorescence Spectrometer: A Comparative Study

Proctor

Wang

Larson

et al. 2020

ACS Earth Space Chem.

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Depleted uranium (DU) armor-penetrating munitions are used on testing and training ranges leading to elevated concentrations of U in range soils. To prevent exposure from secure areas contaminated with DU hotspots, easy and rapid screening methods are needed. This study explores the feasibility of field-portable X-ray fluorescence (FPXRF) spectrometry as a fast screening tool for locating hotspots of DU in the field. Direct comparisons of results were made for U concentrations in the soil obtained using FPXRF spectrometry and measurement of U using inductively coupled plasma mass spectrometry (ICP–MS) after acid digestion. The environmental samples included both field-range contaminated soils collected at a munition testing facility and soils spiked with uranium dioxide, uranium trioxide, and uranyl nitrate. Using U concentrations measured with ICP–MS from split samples, FPXRF operating procedures and conditions such as analysis time, soil moisture content, sample amount, and sample packing factors were optimized. Results showed that the FPXRF technique yielded similar U concentrations as ICP–MS measurements after acid digestion in both standard soil (NIST) samples and DU-contaminated range soils. In field-contaminated soils, U values with FPXRF were 88.8% of the measurements with ICP–MS with a significant correlation (R 2: 0.98, n = 8). Sample preparation affected the uranium concentration measurements made with FPXRF in the laboratory and in the field. A loose packing of the samples in the sample containers, higher sample occupancy, and low soil moisture yielded significantly higher U concentrations by 4–5, 15–50, and 43%, respectively. The measured soil U concentrations were not affected by the variation of the sample analysis time. This study suggests that FPXRF is a promising fast screening tool for field DU hotspots as well as detection/location of penetrators in the fields that can increase the ability to rapidly and inexpensively manage DU on ranges and help ensure sustainable use of DU munitions on testing and training ranges.

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Provenance of uranium in a sediment core from a natural reservoir, South China: Application of Pb stable isotope analysis

Cited by 41 publications

References 49 publications

New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

New Insights into Pb Isotope Fingerprinting of U-Mine Material Dissemination in the Environment: Pb Isotopes as a Memory Dissemination Tracer

Potentially Toxic Element Contaminations and Lead Isotopic Fingerprinting in Soils and Sediments from a Historical Gold Mining Site

Rapid Screening for Uranium in Soils Using Field-Portable X-ray Fluorescence Spectrometer: A Comparative Study

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