Deciphering the clearance efficacy on the soil of slag stockpiles via lead isotopic signatures
文献类型：期刊论文
| 作者 | Tao, Zhenghua2,3; Zhang, Lina2; Jia, Lin2; Pan, Ke1; Wei, Rongfei3; Chen, Shanshan4; Zhu, Xiaoying2; Wang, Ningning2; Yang, Danhua2,3; Xia, Tianxiang2 |
| 刊名 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| 出版日期 | 2026-04-15 |
| 卷号 | 404页码:129390 |
| 关键词 | Metal slag Clearance efficacy Lead isotopes Relative contribution Absolute contribution |
| ISSN号 | 0301-4797 |
| DOI | 10.1016/j.jenvman.2026.129390 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Metal slag has become an increasing environmental concern because of its hazardous constituents, prompting global initiatives to remove historical stockpiles as part of soil remediation programs. However, evaluating the effectiveness of these clearance efforts remains challenging, as residual slag-derived contamination is difficult to distinguish from geogenic backgrounds or anthropogenic inputs. This study aims to quantitatively assess the efficacy of aluminum-steel slag stockpile clearance by integrating lead (Pb) isotopic signatures with partial extraction techniques to evaluate changes in soil contamination before and after remediation. Based on the significant correlation between 1/Pb and the 206Pb/207Pb ratio, a binary mixing model was employed for source apportionment, thereby confirming a shared metal slag source. Model calculations indicate a significant reduction in the relative contribution of metal slag, which decreased from 95.2% pre-clearance to 41.4% postclearance, reflecting a reduction of approximately 55.9%. Meanwhile, the absolute Pb concentration fell dramatically from 557.3 mg/kg to 20.6 mg/kg, representing a decrease of about 96.3%. This notable divergence underscores that while absolute mass reduction validates the effectiveness of remediation efforts, the persistent relative contributions highlight reconfigured source dynamics crucial for long-term stewardship. Our study establishes Pb isotopic analysis as a robust methodology that surpasses conventional bulk concentration measurements in assessing the success of environmental cleanup. |
| URL标识 | 查看原文 |
| WOS关键词 | HEAVY-METALS ; SOURCE APPORTIONMENT ; SOURCE POLLUTION ; SURFACE WATERS ; PB ; CHINA ; REMEDIATION ; DEPOSITION ; REDUCTION ; SEDIMENTS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001724100400001 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221276]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Xia, Tianxiang |
| 作者单位 | 1.Shenzhen Univ, Inst Adv Study, Shenzhen Key Lab Marine Microbiome Engn, Shenzhen 518060, Peoples R China; 2.Beijing Municipal Res Inst Ecoenvironm Protect, Beijing Key Lab Risk Modeling & Remediat Contamina, Beijing 100037, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China; 4.Xiamen Univ, Coll Environm & Ecol, Key Lab, Minist Educ Coastal & Wetland Ecosyst, Xiamen 361102, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Zhenghua,Zhang, Lina,Jia, Lin,et al. Deciphering the clearance efficacy on the soil of slag stockpiles via lead isotopic signatures[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2026,404:129390. |
| APA | Tao, Zhenghua.,Zhang, Lina.,Jia, Lin.,Pan, Ke.,Wei, Rongfei.,...&Xia, Tianxiang.(2026).Deciphering the clearance efficacy on the soil of slag stockpiles via lead isotopic signatures.JOURNAL OF ENVIRONMENTAL MANAGEMENT,404,129390. |
| MLA | Tao, Zhenghua,et al."Deciphering the clearance efficacy on the soil of slag stockpiles via lead isotopic signatures".JOURNAL OF ENVIRONMENTAL MANAGEMENT 404(2026):129390. |
入库方式： OAI收割
来源：地理科学与资源研究所
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