Rare earth elements in soil around coal mining and utilization: Contamination, characteristics, and effect of soil physicochemical properties
文献类型：期刊论文
| 作者 | Zerizghi, Teklit3,5; Guo, Qingjun4; Wei, Rongfei; Wang, Ziteng5; Du, Chenjun1,5; Deng, Yinan2,6 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2023-08-15 |
| 卷号 | 331页码:121788 |
| ISSN号 | 0269-7491 |
| 关键词 | Rare earth elements Coal mining and utilization Geochemical properties Bioavailability South Africa |
| DOI | 10.1016/j.envpol.2023.121788 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | REEs are emerging contaminants, and soils nearby coal and coal ash with high REEs composition are vulnerable to REEs contamination. Besides, coal industry can alter surrounding soil characteristics. However, there is information paucity about REEs contamination and geochemical behaviors along with soil characteristics around coal industrial areas, which are essential for understanding their toxicity and mobilization. The study was conducted in soils surrounding Kriel coal-fired power plant (KCM) and Greenside coal mining in Witbank (GSCM), South Africa. Multivariate statistical analysis, pollution and fractionation indices, and BCR sequential extraction were applied. The EREEs in the soils were compared to EREEs abundance in the upper earth's crust (UEC), and slightly higher EREEs was found in KCM but slightly lower in GSCM. Generally, LREEs are abundant. The soil REEs were normalized using the Post-Archean Australian Shale (PAAS) and Eu and Gd in KCM and Gd in GSCM were >1. Contamination assessment revealed that the soils are slightly to moderately contaminated by REEs. EREEs in KCM was significantly correlated with soil particle sizes of 2.00-50.00 & mu;m, Al2O3, Fe2O3, and MnO, while with 2.00-3.00 & mu;m and Al2O3 in GSCM. Fractionation characteristics showed a positive Ce anomaly, with positive linear regressions with Fe2O3 and MnO. In contrast, a negative Eu anomaly was found with positive linear regressions with Al, Ca, and Mg-oxides. Oxidizable fractioned REEs accounted for 32.33% of the EREEs in GSCM and 35.85% in KCM, and their high EF suggests enrichment that could be due to coal mining and utilization. Most soil physicochemical properties appear to be negatively correlated with the exchangeable REEs. Overall, the soils are contaminated by REEs and the REEs characteristics are considerably influenced by major elements oxide, U, and Th contents. Therefore, more attention should be paid to REEs contamination and impacts around coal mining and utilization. |
| WOS关键词 | ACID-MINE DRAINAGE ; SEQUENTIAL EXTRACTION PROCEDURE ; GEOCHEMICAL CHARACTERISTICS ; FUJIAN PROVINCE ; AREA ; FRACTIONATION ; BEHAVIOR ; SEDIMENTS ; ROCKS ; MINERALOGY |
| WOS研究方向 | Environmental Sciences & Ecology |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:001020532100001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194385]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 作者单位 | 1.Yunnan Univ, Sch Earth Sci, Kunming 650091, Peoples R China 2.Natl Commiss Higher Educ, Hamelmalo Agr Coll, POB 397, Keren, Eritrea 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 6.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 7.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zerizghi, Teklit,Guo, Qingjun,Wei, Rongfei,et al. Rare earth elements in soil around coal mining and utilization: Contamination, characteristics, and effect of soil physicochemical properties[J]. ENVIRONMENTAL POLLUTION,2023,331:121788. |
| APA | Zerizghi, Teklit,Guo, Qingjun,Wei, Rongfei,Wang, Ziteng,Du, Chenjun,&Deng, Yinan.(2023).Rare earth elements in soil around coal mining and utilization: Contamination, characteristics, and effect of soil physicochemical properties.ENVIRONMENTAL POLLUTION,331,121788. |
| MLA | Zerizghi, Teklit,et al."Rare earth elements in soil around coal mining and utilization: Contamination, characteristics, and effect of soil physicochemical properties".ENVIRONMENTAL POLLUTION 331(2023):121788. |
入库方式： OAI收割
来源：地理科学与资源研究所
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