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• W4313418833 endingPage "194" @default.
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• W4313418833 abstract "To establish a 239+240Pu, 137Cs, and heavy metal reference soil site in Northeast China, three grassland soil cores were collected from the Lao-Ye-Ling Mountain, which is a branch of the Chang-Bai Mountains. The activities were in the range of 0.041–2.752 mBq/g for 239+240Pu and in the range of 0.2–57.6 mBq/g for 137Cs. The 240Pu/239Pu atomic ratios were 0.161–0.186, showing that 239+240Pu in the study area originated from the global fallout. Also, 239+240Pu, 137Cs, and excess 210Pb were enriched in the surface soil. The convective–dispersion equation model provided the lower apparent dispersion coefficients (D) and apparent convection velocities (v) for both 239+240Pu and 137Cs. The soil erosion rate in this study area was estimated by an erosion model, which was lower than that in the other area of Northeast China. 239+240Pu in the different soil fractions was analyzed by a sequential extraction method, and the result showed that 239+240Pu was mainly adsorbed by Fe/Mn oxides and their associated organic matter (NOMFe/Mn-oxides fraction). Except for Fe, all other heavy metals from the anthropogenic source were enriched in the surface soil. The pollution level of heavy metals in this study area was lower. In general, the alpine grassland soil of the Lao-Ye-Ling Mountain can be used as a reference soil site to study environmental pollution and soil erosion and provided some reference baselines for future multidisciplinary studies in Northeast Asia." @default.
• W4313418833 created "2023-01-06" @default.
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• W4313418833 date "2022-12-28" @default.
• W4313418833 modified "2023-10-14" @default.
• W4313418833 title "Sequential Extraction of ^239+240Pu and the Vertical Distribution of ^239+240Pu, ¹³⁷Cs, and Heavy Metals in Chang-Bai Mountains’ Grassland Soil" @default.
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• W4313418833 doi "https://doi.org/10.1021/acsearthspacechem.2c00286" @default.
• W4313418833 hasPublicationYear "2022" @default.
• W4313418833 type Work @default.

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