中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Potential hot spots contaminated with exogenous, rare earth elements originating from e-waste dismantling and recycling

文献类型:期刊论文

作者Wang, Siyu1,3; Xiong, Zhunan1,3; Wang, Lingqing1; Yang, Xiao1; Yan, Xiulan1; Yan, Xiulan1; Li, You1; Zhang, Chaosheng2; Liang, Tao1,3
刊名ENVIRONMENTAL POLLUTION
出版日期2022-09-15
期号309页码:119717
关键词e -waste Anthropogenic Ree Factor Contribution Hot Spot Influencing Mechanism
DOI10.1016/j.envpol.2022.119717
英文摘要

Dismantling and recycling e-waste has been recognized as a potential emission source of rare earth elements (REEs). However, the presence of REEs in typical regional soils has yet to be studied. Given the potential health implications of such soil contamination, it is vital to study the characteristics, spatial distribution, and pollution level of REEs caused by e-waste dismantling as well as determine the influencing mechanism. This study focused on Guiyu Town as an example site, which is a typical e-waste dismantling base. From the site, 39 topsoil samples of different types were collected according to grid distribution points. Soil profiles were also collected in the dismantling and non-dismantling areas. The REE characteristic parameters showed that the REE distribution was abnormal and was affected by multiple factors. The results of the integrated pollution index showed that approximately 61.5% of soil samples were considered to be lightly polluted. Spatial distribution and correlation analysis showed that hot spots of REE-polluted soil coincided with known, main pollution sources. Moreover, there was a significant negative correlation (p <= 0.05) between the REE concentration and the distance from the pollution source. E-waste disassembly and recycling greatly affect the physical and chemical properties of the surrounding soil as well as downward migration areas. In the disassembly area, REE accumulated more easily in the surface layer (0-20 cm). Geographical detector results showed that distance factor was the main contribution factor for both light rare earth elements (LREE) and heavy rare earth element (HREE) (q = 34.59% and 53.33%, respectively). REE distribution in soil was nonlinear enhanced by different factors. Taken together, these results showed that e-waste disassembling and recycling not only directly affected the spatial distribution of REEs, but that their distribution was also affected by land use type and soil properties.

资助项目Major Project of the National Natural Science Foundation of China[71991483] ; National Natural Science Foundation of China[42130713]
语种英语
源URL[http://ir.igsnrr.ac.cn/handle/311030/184455]  
专题地理科学与资源研究所_自然地理与全球变化研究部
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China
2.Natl Univ Ireland, Dept Geog, Galway, Ireland
3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Wang, Siyu,Xiong, Zhunan,Wang, Lingqing,et al. Potential hot spots contaminated with exogenous, rare earth elements originating from e-waste dismantling and recycling[J]. ENVIRONMENTAL POLLUTION,2022(309):119717.
APA Wang, Siyu.,Xiong, Zhunan.,Wang, Lingqing.,Yang, Xiao.,Yan, Xiulan.,...&Liang, Tao.(2022).Potential hot spots contaminated with exogenous, rare earth elements originating from e-waste dismantling and recycling.ENVIRONMENTAL POLLUTION(309),119717.
MLA Wang, Siyu,et al."Potential hot spots contaminated with exogenous, rare earth elements originating from e-waste dismantling and recycling".ENVIRONMENTAL POLLUTION .309(2022):119717.

入库方式: OAI收割

来源:地理科学与资源研究所

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