Sequential Extraction of 239+240Pu and the Vertical Distribution of 239+240Pu, 137Cs, and Heavy Metals in Chang-Bai Mountains’ Grassland Soil
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Le résumé fourni par la source
To establish a 239+240 Pu, 137 Cs, 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+240 Pu and in the range of 0.2–57.6 mBq/g for 137 Cs. The 240 Pu/ 239 Pu atomic ratios were 0.161–0.186, showing that 239+240 Pu in the study area originated from the global fallout. Also, 239+240 Pu, 137 Cs, and excess 210 Pb 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+240 Pu and 137 Cs. 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+240 Pu in the different soil fractions was analyzed by a sequential extraction method, and the result showed that 239+240 Pu was mainly adsorbed by Fe/Mn oxides and their associated organic matter (NOM Fe/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.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.
- Titre Crossref
- Sequential Extraction of <sup>239+240</sup>Pu and the Vertical Distribution of <sup>239+240</sup>Pu, <sup>137</sup>Cs, and Heavy Metals in Chang-Bai Mountains’ Grassland Soil
- Date Crossref
- 28/12/2022
- Éditeur
- American Chemical Society (ACS)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Guangxi University pays non établi dans la noticeUniversité ou école supérieure
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Soochow University State Key Laboratory of Radiation Medicine and Protection pays non établi dans la noticeUniversité ou école supérieure
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State Key Laboratory of Radiation Medicine and Protection pays non établi dans la noticeStructure de recherche
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Northeast Agricultural University pays non établi dans la noticeUniversité ou école supérieure
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School of Physical Science and Technology Guangxi Key Laboratory for Relativistic Astrophysics pays non établi dans la noticeUniversité ou école supérieure
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School of Water Conservancy & Civil Engineering and Key Laboratory of Effective Utilization of Agricultural Water Resources of Ministry of Agriculture and Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region pays non établi dans la noticeUniversité ou école supérieure
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School of Public Administration and Law pays non établi dans la noticeUniversité ou école supérieure
Guangxi University, State Key Laboratory of Radiation Medicine and Protection — Soochow University et State Key Laboratory of Radiation Medicine and Protection, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.