Isotopic insights and integrated analysis for heavy metal levels, ecological risks, and source apportionment in river sediments of the Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Cai, Na6,7,8; Wang, Xueping4,5; Zhu, Haixia6,7,8; Hu, Yan2,3; Zhang, Xiying7,8; Wang, Lingqing1 |
| 刊名 | ENVIRONMENTAL RESEARCH
 |
| 出版日期 | 2024-06-15 |
| 卷号 | 251页码:118626 |
| 关键词 | Heavy metals Sediment Qinghai -Tibet plateau (QTP) Potential ecological risk Sources |
| DOI | 10.1016/j.envres.2024.118626 |
| 产权排序 | 8 |
| 文献子类 | Article |
| 英文摘要 | The research was carried out to examine the pollution characteristics, ecological risk, and origins of seven heavy metals (Hg, As, Pb, Cu, Cd, Zn, and Ni) in 51 sediment samples gathered from 8 rivers located on the QinghaiTibet Plateau (QTP) in China. The contents of Hg and Cd were 5.0 and 1.1 times higher than their background values, respectively. The mean levels of other measured heavy metals were below those found naturally in the local soil. The enrichment factor showed that the study area exhibited significantly enriched Hg with 70.6% sampling sites. The Cd contents at 19.6% of sampling sites were moderately enriched. The other sampling sites were at a less enriched level. The sediments of all the rivers had a medium level of potential ecological risk. Hg was the major ecological risk factor in all sampling sites, followed by Cd. The findings from the positive matrix factorization (PMF) analysis shown agricultural activities, industrial activities, traffic emissions, and parent material were the major sources. The upper, middle, and low reaches of the Quanji river had different Hg isotope compositions, while sediments near the middle reaches were similar to the delta 202Hg of the industrial source. At the upstream sampling sites, the Hg isotope content was very close to the background level. The results of this research can establish a strong scientific sound to improve the safety of the natural circumstances of rivers on the QTP. |
| WOS关键词 | POTENTIALLY TOXIC ELEMENTS ; ROAD DUST ; MERCURY ; IDENTIFICATION ; CONTAMINATION ; DYNAMICS ; CADMIUM ; COPPER ; SOILS ; WATER |
| WOS研究方向 | Environmental Sciences & Ecology ; Public, Environmental & Occupational Health |
| WOS记录号 | WOS:001221349900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205150]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhang, Xiying; Wang, Lingqing |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Qinghai Prov Key Lab Explorat & Res Salt Lake Reso, Golmud 816099, Peoples R China 3.Qaidam Comprehens Geol & Mineral Explorat Inst Qin, Golmud 816099, Peoples R China 4.Changan Univ, Sch Water & Environm, Xian 710054, Peoples R China 5.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Qinghai Prov Key Lab Geol & Environm Salt Lakes, Xining 810008, Peoples R China 8.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Green & High end Utilizat Salt Lake Resour, Xining 810008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Na,Wang, Xueping,Zhu, Haixia,et al. Isotopic insights and integrated analysis for heavy metal levels, ecological risks, and source apportionment in river sediments of the Qinghai-Tibet Plateau[J]. ENVIRONMENTAL RESEARCH,2024,251:118626. |
| APA | Cai, Na,Wang, Xueping,Zhu, Haixia,Hu, Yan,Zhang, Xiying,&Wang, Lingqing.(2024).Isotopic insights and integrated analysis for heavy metal levels, ecological risks, and source apportionment in river sediments of the Qinghai-Tibet Plateau.ENVIRONMENTAL RESEARCH,251,118626. |
| MLA | Cai, Na,et al."Isotopic insights and integrated analysis for heavy metal levels, ecological risks, and source apportionment in river sediments of the Qinghai-Tibet Plateau".ENVIRONMENTAL RESEARCH 251(2024):118626. |
入库方式： OAI收割
来源：地理科学与资源研究所
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